DX White Paper 2025

White Paper

Tokyo Electric Power Company Holdings, Inc.

On TEPCO DX White Paper

・・・ P01

Direction of transformation through DX

Business transformation and business model realized through digitalization

Examples of provided values through thorough digitalization

Five action guidelines

TEPCO DX vision

TEPCO DX roadmap

・・・ P02

・・・ P03

・・・ P04

・・・ P05

・・・ P06

・・・ P07

Examples of transformation through TEPCO DX

Examples of Transformation

01

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Utilization of digital twins and infrastructure development in decommissioning site

02

Development and utilization of remotely operated robots for extreme environments

03

Field safety assessment by generative AI and building of knowledge sharing platform

04

Promotion of ZEB service utilizing building service system and building

EMS

05

Advanced facility management of nuclear power stations utilizing 3D model technology

06

07

Improvement of CX/EX through advanced analysis of "customers' voice" utilizing AI

Smart maintenance of hydro and wind power stations utilizing drones

08

Advanced substations utilizing advanced digital technology

09

Advanced maintenance of power transmission and distribution utilizing automatic drone flight system

10

11

CX/EX innovation driven by generative AI, and advanced contact center Development of healthcare service utilizing high-definition power data

and AI technology

12

Development of CN promotion service through advanced use of energy data

Foundation for DX Promotion

13

Building a community based on CN and disaster prevention utilizing Area EMS

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On TEPCO DX White Paper

The TEPCO Group will pioneer the future of energy through the AI shift

We recognize generative AI, which has evolved rapidly in recent years, has the potential to become the "catalyst for change"

that will give a social impact comparable to the invention of electricity.

The TEPCO Group has begun widespread utilization of generative AI in various work, including advanced safety and risk measures, accumulation and sharing of technical know-how, and quality improvement through support for the application of laws and regulations. Moving forward, we will further evolve these efforts toward rebuilding work processes and organizational design with AI agents as a prerequisite and promote business innovation and initiatives to cultivate transformation-ready talent, in other words, the AI shift. While being a major challenge for us, it will become the first step toward a future where humans and AI advance together.

In addition, we are actively promoting the utilization of digital technology as "Decommissioning DX" in our social mission of decommissioning of Fukushima Daiichi Nuclear Power Station. Through this, we aim to achieve security and safety of workers and the local communities and steadily realize the decommissioning roadmap. Furthermore, we will also engage in technical development aiming for the automation of work by "physical AI (robotics)", which autonomously operates in physical space, in the future.

This DX White Paper introduces various achievements of DX measures thus far. Cases such as ZEB (net-zero energy building) as a decarbonization measure for existing buildings clearly demonstrate actual results of business transformation and effectiveness leveraging digital capabilities.

Defining TEPCO DX as "driving the realization of a zero-carbon energy society", we are deepening the "one-stop power model*1" and advancing the acquisition of the "transition partner business model*2". Furthermore, we are also advancing comprehensive and thorough digitization with the social data infrastructure "Zero Carbon Energy Data Hub". Through these initiatives, we will continue to transform the business structure under the mission of achieving both stable power supply and carbon neutrality.

The TEPCO Group will continue to pioneer the future of energy through business transformation and human resources fueled by digital technology and by shifting to AI for transformation in the entire energy value chain, together with stakeholders and partners.

Tokyo Electric Power Company Holdings, Inc. Managing Executive Officer

Chief Information Officer

and Chief Information Security Officer

*1: Existing electricity business *2: Co-creation business for transition to a carbon-neutral society 01

White Paper

Direction of transformation through DX

• TEPCO DX drives the realization of a sustainable zero-carbon energy society through thorough digitalization

・Stable supply of zero carbon energy, comfortable life for customers, and reduced CO2emission and resilience for the society and community are realized

TEPCO DX

Drives the realization of a zero-carbon energy society

through thorough digitalization

Customers

Comfortable life Energy-saving Cost reduction

Connecting data with ...

TEPCO DX

Thorough digitalization

Society /

community

Reduced CO2 emission Resilience

Zero-carbon energy

Stable supply of electricity, hydrogen, etc.

Goal

Mitigate global warming and drastic climate change, and maintain biodiversity

02

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Business transformation and business model realized through digitalization

• Transform into data-driven business operations through thorough digitalization

• Refine the conventional one-stop power business model, and acquire the transition partner business model to realize a zero-carbon energy society

• Zero Carbon Energy Data Hub is built as an infrastructure to distribute data on zero-carbon energy society, which provides data and services

  Concept

  
  
  
  
  
  
  Before DX After DX
  
  

  Complement experience and know-how with data

  Outline of business model aimed for by TEPCO DX
  
  
  
  

  Customers / Society

  Business operations with thorough digitalization

  Data-driven business operations

  
  
  

  Indefinitely

  One-stop power Transition partner

  Keep striving to

  Business

  Refine

  Electric

  power

  Hydrogen

  Direct

  Needs Strategy

  
  
  

  model

  current

  Operation

  Proposal

  Additionally acquire

  
  
  

  Social infrastructure

  Kaizen

  Stable supply

  Solution

  Construction

  Zero Carbon Energy Data Hub

  
  
  

  Partner companies

  03

  Examples of provided values through thorough digitalization

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  Stable Supply

  Shortening of facility shutdown period due to prediction of facility failure

  Improvement of operability through data utilization suppression of increased emission of CO2

  Cost reduction

  Streamlining / Optimization

  Connecting data with ...

  
  
  

  Realization of zero-carbon energy society

  Facility Customers

  Surprise / Awareness

  Proposal of carbon- neutral products and services by estimating individual needs from attribute, facility, action and history data

  Diagnostic chart on what to do

  based on owned products, actual results and CO 2 emissions

  Increas ed s ales / Cus tomer s atis faction

  Security / Safety

  Shifting resources to transformation activities and new carbon-neutral businesses by formalizing know-how

  and experience

  Increased profit

  Work operations

  Data

  National government Local governments

  Regional disaster prevention and ensuring safety by coordinating information on disasters, rainfall, etc.

  Real-time distribution of operation data and footage of nuclear facilities

  Well-being

  Zero personal injuries due to elimination of unsafe actions based on accident cases

  Employee happiness through connections with colleagues who share common thoughts and feelings

  Employee satisfaction

  Employees

  Business partners

  Gaining trust

  Collaboration

  Energy data linkage with prosumers and operators, social implementation of locally produced and consumed Area EMS*1 in a decarbonized region

  Business creation through real-time DER*2

  control and aggregation

  ＊1：Energy Management System (System that monitors and optimally controls energy usage)

  ＊2：Distributed Energy Resources (Power sources distributed across multiple locations. Solar power, wind power, storage battery, etc.)

  ＊3：Efficient energy management by bundling multiple distributed power sources and consumers

  Market creation

  04

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  Five action guidelines

  • Set action guidelines for each employee to ensure realization of transformation through "data"

    1

    Thoroughly convert work operations into data,

    believing the power of data

    2

    Speak with data to make decisions that

    depart from intuition, knack and guts

    Connect with colleagues and partners crossing departmental

    3 boundaries with the common language of "data", and exchange

    ideas to co-create values

    4

    Build trust of the society and customers

    with transparent data

    of transformation

    Each and every person is involved. Believe in data when taking action, and unlock yourself from customs

    5

    05

    
    
    

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    TEPCO DX vision

    Connect with internal and external parties as well as customers (Connect) through thorough digitalization (Data) and gain trust of the society (Trust), thereby expanding new businesses such as decarbonation services (realization of business structure transformation)

    
    
    

    Mitigate global warming and drastic climate change, and maintain biodiversity

    Trust

    Healthcare

    In-home IoT energy saving

    Build trust

    Decarbonization

    service

    Regional disaster prevention

    Security and safety / comfort

    Connect

    Resilience / regional

    contribution

    Electrified mobility

    Customers

    Smart meter

    information

    Connect with data

    Digitize

    Disaster prevention information

    Society

    Locally produced and

    consumed system

    Energy-saving

    Work information

    Partners

    Digitalize

    Data

    Thorough

    digitalization

    Communication information

    D X Employee

    AI

    consulting

    Business collaboration / coexistence and co-prosperity

    Digital power

    station

    Energy management

    Operation information

    Facility

    Streamlining /

    optimization

    Work-style reform / self-design

    Smart maintenance

    3D model

    Achieving both Fukushima revitalization and decommissioning

    Ensuring nuclear safety

    06

    TEPCO DX roadmap

    White Paper

    2050 Substantially zero CO2 emissions from energy supply

    Transform the business structure to achieve both long-term stable supply and carbon neutrality

    Trust

    2030 Reduction of CO2 emissions from electricity sales by 50% (compared to FY2013)

    Connect

    Build trust

    Decarbonization solutions based on co-creation

    ・Creation of highly value-added services through cross-industrial alliances

    ・Next-generation city planning through advanced energy management

    ・Zero Carbon Energy Data Hub as a social infrastructure

    Data

    Connect with data

    Resilient energy value chain

    ・Improvement of customer services utilizing advanced technology

    ・Strengthening of energy network utilizing real-time data

    ・Regenerative energy as the main power source through smart power generation

    Thorough

    digitalization

    Acquisition of competitive power through

    human resources and cultural reforms

    Promotion of development of

    digital foundation

    ・Promoting value demonstration through the right deployment of the right talent, at the right place and at the right time

    • Development of DX talent through reskilling of "D" and "X"

    • Development of an environment for all-employee participatory transformation activities

・Building of digital service platform and democratization of data

・Revamping of legacy system and integration of data

・Ensuring cyber security by a specialized organization

Transformation of human and

organizational culture

Transformation of business Contribution to the society

07

Examples of Transformation

08

E x a mple s o f t ra ns f o rma t io n

00

Examples of transformation through TEPCO DX

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Power generation

Power transmission

and distribution

Demand

Nuclear power System Comfortable life

• Advanced facility management utilizing 3D model technology

  … P14

• Advanced substations utilizing

  advanced digital technology … P17

• Advanced maintenance of power

• CX/EX innovation driven by generative AI, and advanced

  contact center… P19

  Renewable energy

• Accelerated restoration and maximized power generation through real-time management … P15

transmission and distribution facilities utilizing drones … P18

One-stop power

Resilient energy value chain

Transition partner

Solutions

Promotion of ZEB service utilizing EMS, etc. … P13

• Development of healthcare service

  utilizing power data and AI … P20

• Development of CN promotion service

  through use of energy data … P21

  • Smart maintenance of power

    stations utilizing drones … P16

    Decarbonization solutions based on co-creation

    Next-generation city planning

    • Building a next-generation community utilizing Area EMS … P22

Generative AI

Field safety assessment by generative AI, Building of knowledge sharing platform … P12

Zero Carbon Energy Data Hub

Decommissioning

Utilization of digital twins and infrastructure development in decommissioning site … P10

： New page

Development and utilization of remotely operated robots for extreme environments … P11

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E x a mple s o f t ra ns f o rma t io n

Utilization of digital twins and infrastructure development in decommissioning site

・Utilization of digital technology is actively promoted to decommission safely and steadily, which is the mission of the TEPCO Group

・On-site conditions, including presence of obstacles, are grasped and utilized to review work plans, by creating 3D

models of the interior of high-dose buildings using robots, etc.

・The aim is to create 3D models of the entire site and develop digital twins in the future, by establishing the infrastructure for acquired data and integrating various information

Key points of the initiative Prospects of the initiative

3D modeling Simulation utilizing models Organization of information infrastructure

by developing digital twins

3D modeling of the site by utilizing four-legged walking robots, 3D scanners and drones and acquiring field footage and point cloud data

Trainings are implemented utilizing MR*1 based on 3D models. Both safety and training quality are improved by drastically reducing moving and preparation time.

Advanced construction simulation by mapping various information

3D model of the entire site is created and development of digital twins incorporating high-dose areas and construction plan data is envisioned

The aim is to the improve work efficiency by "bringing the field to the desk" by developing an environment where the conditions of the field can be centrally grasped in digital space

Four-legged walking robot "SPOT"

3D model of the site

Data acquisition

・The surrounding is scanned with the mounted sensors to acquire point cloud data, etc.

・Actually created 3D model of the site

Training utilizing MR

・Training using MR of large suction truck

Digital twin (image)

・Various information is centralized by incorporating equipment information into the created 3D model

10

*1: Mixed Reality; augmented reality technology that merges the real world with the virtual world

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02

E x a mple s o f t ra ns f o rma t io n

Development and utilization of remotely operated robots for extreme environments

・Robots to work in decommissioning environments where it is difficult for humans to enter, such as high-dose areas

and underwater, are developed and utilized

・Actual introduction in the field is being promoted after a period of thorough verification with 3D data acquired in advanced and mock-up environments

Key points and prospects of the initiative

Safe decommissioning work is realized in severe environments

Data acquisition and remote verification and operations are realized in the field of decommissioning where human access is limited, such as high-dose areas, rough paths and underwater

Worker safety and work speed are improved assuming remote operation by robots for high-dose work across all ranges from light work to heavy work in the future

Joint development and field introduction with subsidiaries and affiliated companies

Zeolite*1 collection robot is jointly developed with Hakusan Corporation (mainly Hyper-Environmental Robots Laboratory)

Ancillary equipment of the zeolite collection robot is designed and introduced in the field, and introduction of four-legged walking robots and underwater survey robots is verified and implemented in the field by Tokyo Power Technology Ltd. which is a subsidiary of TEPCO

Zeolite collection robot "Accum"

・High-dose zeolite sandbags that have adsorbed radioactive cesium inside buildings can be collected

・Developed in-house to adapt to special environments where human access is not possible due to high dose

・Collection work inside the high temperature

incinerator building began in March 2025

Four-legged walking robot "SPOT"

・Capable of executing fine movements such as measuring dose, collecting samples and opening/closing doors

・Works at decommissioning sites for its excellent off-road capability

Underwater survey robot "Rad Hotaru IV"

・Underwater remote-controlled robot that achieves both compact size and water pressure resistance is utilized to measure the thickness of the bottom plate of the tank where ALPS treated water is accumulated

・Jointly developed with the National Institute of Technology, Fukushima College

11

*1: Mineral that possesses the property of adsorbing radioactive materials such as cesium

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03

E x a mple s o f t ra ns f o rma t io n

Field safety assessment by generative AI and building of knowledge sharing platform

・Generative AI is utilized to solve key issues in the field such as safety measures and transfer of knowledge

・More intuitive and simplified usage is enabled by enhancing usability in the field through UI*1 and UX*2 improvements, such as supporting various input formats such as photos and audio in addition to text

Key points and prospects of the initiative

Field safety assessment and risk detection are supported with generative AI

作業内容・環境の確認

危険源 特定

リスク 評価

具体的な 対策案提示

優先実 施事項特定

危険 源

重大 度

発生可 能性

リスクレ ベル

感電

墜落・ 転落

致命的〜 重大

致命 的

中

中

Identification of priority items to be implemented

Possibility of occurrence

Medium

Medium

Risk level

I I

Equipment replacement work will be implemented on utility poles.

Please assess the risks.

AI Risk assessment of "equipment replacement work on utility poles" will be conducted based on images and explanations.

Initiative of the safety promotion division (Safety Now)

Knowledge is built on RAG foundation*3 to contribute to organizational knowledge management

Knowledge

Explicit knowledge (document)

Tacit knowledge

Questions +

Interview comments by experts

Summarized post by AI

Direct post

K n o w l e d g e s h a r i n g p l a t f o r m ( K a i z e n p l a t f o r m , Q a s t )

S e l f - l e a r n i n g b y t h e o r g a n i z a t i o n a n d e m p l o y e e s

Initiative of the civil and architectural engineering division (Qast)

Anonymous

Please tell me about the Kanto loam layer

Qast AI

The Kanto loam layer is a red soil layer that broadly covers the Kanto Plain, and is a stratum formed by the accumulation of volcanic ejecta transported mainly from volcanoes such as Mt. Fuji and Neyama. It was formed in the Late Pleistocene Age of the Quaternary Period, and is classified into the Shimosueyoshi loam layer, Musashino loam layer, Tachikawa loam layer, etc. They correspond to terrace layers and also serve as indicators for topographic classification.

・作業手順の遵守

・絶縁用工具/防護具（絶縁手袋、ヘルメット）の着用

・活線作業の場合は安全距離確保・カバー等の設置を厳守

Transfer of technology / human resources development

A system to support risk assessment is deployed, in which information from work sites (text, photos, audio, etc.) is input into generative AI. The system references past internal and external disaster and near-miss incident cases, relevant laws and regulations, and safety-related materials to identify potential risks

UI and UX improvements, such as photo and voice input, and "chat consultation" function

that answers basic questions on safety are introduced to improve usability in the work sites

In the future, accumulated organizational knowledge will be linked with checklists, reports and construction plan formats, and causes and measures will be analyzed by AI based on occurrence of disasters and near-miss incidents. The aim is to improve company-wide safety awareness by sending alerts to similar work sites

*1: User Interface; operation screen and design of the service, system, etc.

*2: User Experience; experience by users in the process of using the service

*3: Retrieval-Augmented Generation; system that searches for knowledge from incorporated materials and audio and has AI generate answers and summaries based on such information

The nuclear power division and power distribution civil engineering division promote formalization and institutionalization of tacit knowledge held by individuals, in addition to documents serving as explicit knowledge, through interviews, relay talks and other accumulation activities. They are reflected in RAG foundation to enable searches, questions and summaries through AI chat

Through this initiative, especially experience and technical capabilities of employees with advanced expertise in licensing procedures, seismic design of facilities and specialized construction techniques are efficiently transferred as knowledge across generations to members. Time created through Kaizen initiatives also contributes to revitalizing study sessions, trainings and research activities

Intergenerational knowledge exchange is promoted through mechanisms such as internal experts answering questions from employees, and management is also strongly involved in transfer of technology and human resources development, which are key management issues. Looking ahead, further expansion across departments is planned

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04

E x a mple s o f t ra ns f o rma t io n

Promotion of ZEB service utilizing building service system and building EMS

・Realization and widespread adoption of the national government's "Net Zero Energy Building (ZEB)*1" are promoted

・Capturing the trend of decarbonization as a business opportunity, one-stop ZEB service collaborating with group companies is developed

・Combining energy saving (CO2and utility cost reduction through energy management) and energy creation (solar power generation, etc.) contributes to environmental sustainability, enhances real estate value, and improves the comfort and productivity of building users

Energy saving

Key points and prospects of the initiative

Promotion of energy saving through data-driven optimization of building equipment system operations

Efficient and continuous energy reduction is pursued through the optimization of facility equipment operations through the measurement, collection, and analysis of diverse building data, combined with the use of machine learning.

Energy required for conventional buildings

Energy saving

ZEB

planning

ZEB

design

Realization of

ZEB

including operation

Comprehensive support for

transition to ZEB as a ZEB planner

Operation Construction supervision

Net-zero energy consumption

Energy creation

Passive technology (reduction)

・Sunlight shielding, natural ventilation, etc.

Active technology (efficiency)

・High-efficiency lighting and air conditioning

Energy creation

Renewable energy

・Solar power / biomass power generation, etc.

Optimum ZEB is realized based on data with passive technology for reducing energy consumption, active technology for highly efficient energy use and energy creation technology

In the future, advanced utilization of building operation data (heat and electricity) using generative

AI will contribute to regional power supply stability and further energy savings

ZEB services leveraging extensive building management experience

Recognized as a ZEB Planner*2 for ZEB and energy-saving technology and experience. In addition,

the highest ZEB rating*3 was acquired with the new building design for customer buildings

One-stop services are provided from planning to operation as a group.

Transition to ZEB for buildings is supported through long-term commitment to customers

Deployment of ZEB service

ZEB Ready＊4

The ZEB service is fully rolled out and commercialized to mainly promote the transition to ZEB for new and existing small-to-medium-scale buildings (with numerous implementation records at bank branches, offices, and other facilities)

A data platform related to ZEB is built, and further expansion of market share and deployment to other domains are envisioned

Aggregation and utilization of building operation data

Building EMS

Renovation

TEPCO Higashiogu Building

Energy reduction rate

50%

Energy saving and energy creation, data aggregation

Building

New

Sakai Branch of Gunma Bank

Energy reduction rate

105%

Highest "ZEB" rank

New

TEPCO nooqu OFFICE

Energy reduction rate

83%

Nearly ZEB＊5

*1: A building that aims to achieve a net-zero balance of annual primary energy consumption while maintaining a comfortable indoor environment

*2: A service provider that has a consultation service for the general public to achieve ZEB, provides work support (building design, equipment design, construction, energy-saving design, consulting, etc.), and discloses such activities

*3: A state in which the total primary energy consumption of the entire building is reduced by 100% or more, resulting in net-zero energy consumption

*4: A state in which the total primary energy consumption of the entire building is reduced by 50% or more through energy-saving measures

*5: A state in which the total primary energy consumption of the entire building is reduced by 75% or more but less than 100%

See here for detailed information and/or inquiries regarding ZEB cases (in Japanese only)

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05

E x a mple s o f t ra ns f o rma t io n

Advanced facility management of nuclear power stations utilizing 3D model technology

・A BIM*1 model is introduced as digital technology that enables three-dimensional representation of the shapes of buildings and structures, and is integrated with the facility inspection and maintenance management system

・Not only the exterior but also interior structures such as walls and penetrations are visualized by creating 3D models of nuc lear power station buildings

・Further advancement of power station operations is pursued while ensuring the reliable maintenance of safety design through accurate planning and implementation of penetration maintenance

Key points of the initiative

3D modeling of building details

Traditionally, when performing penetration repair work to ensure fire

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protection and watertightness, it used to take time to identify penetrations that are hidden behind large equipment

To address this issue, various design requirements are digitized and centrally integrated and managed. In addition, large volumes of floor plan information and geometric data are viewed using a proprietary viewer on tablet devices, thereby improving operational efficiency

Easy information sharing among diverse partners

Failure to factor in requirements is prevented in the design phase



Miscommunication among organizations and companies is prevented

Example of visualization of wall penetration

3D modeling of nuclear power stations

Example of 3D modeling of building

Construction errors are consistently prevented from design to the field

Prospects of the initiative

Further pursuit of safety

Improve accuracy of design and construction by sharing models with external parties

Reinforce coordination between systems and streamline field operations

＊1： Building Information Modeling; system that centrally manages building and equipment information with 3D models

Simplifying design requirements and structural understanding

Advancement of

Further effective use of 3D models

• Advancement of data management

• Expansion of scope of collaboration and utilization of external software

• Tracking management of areas that need repair

maintenance plan

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E x a mple s o f t ra ns f o rma t io n

Accelerated restoration and maximized renewable energy generation through real-time management

・Development of a system that ① collects, stores and connects, ② effectively utilizes and ③ monetizes data is promoted since 2020

・Environment to easily access internal data of power generation status and income and expenditure status is built to realize data- driven real- time management

・Social values, such as stable supply, increased power from renewable energy and contribution to disaster prevention, are created with faster decision- making in the field, advancement of management decision - making and optimization of the entire watershed by utilizing AI

Key points of the initiative

Centralization of various data

Shinano River

Inawashiro

Nasuno

By leveraging facility-related data enhanced through the deployment of sensing infrastructure, together with accumulated financial performance data and weather data

Takase River

Sai River

Chikuma River

Numata Kinugawa River Shibukawa

Coordinated operation of

multiple dam

General hydro power



New energy Office

surrounding power stations, the quality of operational analysis is significantly enhanced

Advanced analysis is planned by linking weather data that cannot be collected by power station facilities alone

Management indicators are visualized in real time with a unique dashboard

Security issues are addressed with external collaboration

Both increased power and disaster prevention by utilizing AI

AI leveraging accumulated operational data together with external weather data is used to simulate an optimized dam operation model for the entire watershed-including downstream power stations-based on the coordinated operation of multiple dam groups, with the aim of contributing to both increased power generation and disaster

Matsumoto

*Concept drawing

Kofu

Komahashi

Matsuda

Facility status system

groups

Linkage

Facility management system

prevention.

Prospects of the initiative

This enables accurate operational and management decision-making in real time and significantly accelerates responses such as trouble recovery

Maximized renewable energy generation

Time required for dam operation simulation*1 is shortened by 99% at maximum

*1: Time required for water balance simulation is shortened from "8 hours for a single dam" to "2-3 seconds for multiple dams"

Operation monitoring

control system

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E x a mple s o f t ra ns f o rma t io n

Smart maintenance of hydro and wind power stations utilizing drones

・In response to growing interest in CN*1 and increasing demand for renewable electricity with relatively low cost volatility, renewable energy (especially hydro and wind power) is being promoted as the main power source

• Although maintenance work has traditionally consumed a lot of manpower and time, the corresponding operating costs and work accident risks are an issue

・Advancement of maintenance work utilizing drones is planned to realize smart power stations that connect facilities, people and work operations with data and creates maximum values

Image of utilization of drones at a hydro power station

Key points of the initiative

Unstaffed operation of a wide range of maintenance work

Remote monitoring and remote control utilizing drones in various aboveground and underwater maintenance work contributes to not only

Automatic recharging & automatic takeoff/landing drone*3

Enables communication of several kilometers

Low latency communications via low earth orbit satellites

Starlink base station (LTE line)

Nearest base station

Remote monitoring in real time

Electrical facility

improving productivity and reducing work loads but also preventing personal injuries by eliminating dispatch during emergencies

Strong internal and external promotion system

Collaboration system with major domestic telecommunications infrastructure operator is developed. A system that enables autonomous drone flight within a 2km radius is established at

Underwater

drone

Regulating reservoir

Dam body

Intake

Hydraulic iron pipe

Outlet

Power station

Building

Switchgear

Ceiling crane

hydroelectric dams that were previously radio insensitive.

Civil engineering facility

Prospects of the initiative

Shorten trouble investigation time*1 by approx. 96% at maximum

Completely eliminate major personal injury risks during emergency dam inspection work

Image of utilization of drones at a wind power station

Drone photography and confirmation of receptor (lightning conductor) continuity

Blades

*1: Carbon Neutral: zero emission and absorption of CO2

*2: Time from occurrence of the trouble to start of investigation is shortened from "more than 2 days including arrangement of personnel and materials" to "within 2 hours"

*3: Dam inspection by remote operation with autonomous flight drones utilizing satellite communications facilities for

the first time in Japan 16

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E x a mple s o f t ra ns f o rma t io n

Advanced substations utilizing advanced digital technology

・The power system has become more complex due to the massive introduction of regenerative energy to realize a CN society.

・In order for power transmission and distribution operators to concurrently achieve stable supply of low-cost electricity, strengthened resilience, and decarbonization, more sophisticated substation operations are needed more than ever

・Reduction of patrol and inspection cost and suppression of facility renewal cost are planned by promoting digitization (sensing function, AI, 3D technology, drone, etc.) of substations and remotely grasping and assessing signs of abnormality and status of deterioration of facilities in real time

ットワークカメラ 、センサー等

ネNW camera, sensor, etc.

Reality space

AI diagnosis

Facility-related data

・Gas pressure / gas density

・Current / voltage, etc.

・Overheat diagnosis AI

・Oil leakage diagnosis AI

・Rust diagnosis AI, etc.

Maintenance data of each area

Data acquisition / accumulation / centralized management

3D model development for simulation

Transformation to data-driven work operations regardless of work location

Virtual space

Key points of the initiative

ドローン、ロ ボット等

Utilization of the largest scale of substation facility data in Japan

Various data*1 that could not be collected previously is collected and accumulated by establishing communication and monitoring control NW complying with international communication standards, and by sensing function

Relevant drawings are converted into data to link abnormal areas with facility data when

facility abnormality occurs, and speedy recovery is aimed for

Wide range of advanced and unstaffed maintenance work

3D models are created based on above data, and advanced simulations are performed

Image diagnosis AI is developed. Advancement of field patrol work and labor-saving due to eliminating dispatch are planned, by developing a network that can remotely grasp failure information, etc. and combining it with drones

Various alliances

Image diagnosis AI system is developed by collaborating with major telecom companies and AI startups

Prospects of the initiative

Fully digital substations are planned to be realized by linking various AI systems,

BIM and drones, etc.

There is prospect to further reduce and automatize work operations and create new values by analyzing a vast amount of facility data with AI and creating digital twins

＊1： Gas pressure / gas density, current/voltage, operation time, etc. 17

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E x a mple s o f t ra ns f o rma t io n

Advanced maintenance of power transmission and distribution utilizing automatic drone flight system

・Visual checks by going to the site are the basis for facility patrols and inspection work, which requires much manpower and time

・Aging of power transmission and distribution facilities and decrease of inspection workers due to the declining birthrate and aging population are issues, and it is a concern that stable supply will become even more difficult

・Early recovery from disasters and efficient and labor-saving patrols and inspection work are promoted by grasping equipment status with automatic drones and detecting abnormalities with AI

Key points of the initiative

Advanced facility maintenance with AI ×drones

Highly safe automatic drone flight system is built based on 3D data and know-how of facilities accumulated through facility

maintenance work

(A total of 10,000km of autonomous flight routes for drones used in power transmission facilities is planned to be established by FY2027)

High-precision facility diagnosis is realized with AI utilizing a vast

amount of facility image data accumulated since 2013

Image analysis platform with multiple AI implementations that diagnose image data acquired with the automatic drone flight system is being developed

Power facility inspection

Drone operation / traffic control

Cellular Network (sky LTE)

Power line patrol

User

Transmission tower patrol

Substation patrol

Substation (drone port)

Various alliances

Multiple AI and systems are linked and centralized by cooperating with major system integrators

Initiatives are accelerated by expanding the framework of the business association established by electric utilities and 15 major system integrators

Prospects of the initiative

Drastically reduced work time and inspection cost by automatizing inspection work and eliminating dispatch

The automatic flight system is planned to expand its application to substations and power distribution areas and further strengthen resilience during disasters, after being applied to practical work in power transmission areas

Data storage and management

Automatic acquisition of data

Acquire Acquire

footage image

Automatic diagnosis

Inspection plan

Drone port

Data linkage

AI diagnosis function

Facility diagnosis AI

Oil leakage diagnosis AI Rust diagnosis AI

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E x a mple s o f t ra ns f o rma t io n

CX/EX innovation driven by generative AI, and advanced contact center

・CX*1 and EX*2 are improved through a multi-channel environment such as chat, voice bot and FAQs

・The Voice of the Customer is appropriately captured through accumulation of conversation logs and utilization of generative AI to achieve both improvement of service quality and compliance with laws and guidelines, thereby establishing an operational framework rooted in security and trust

Key points and prospects of the initiative

Improvement of customer satisfaction

Usage rate of multiple channels (channels other than phone)

FY2024: 56.2％ (+2.2pt YoY)

Record of reception completion via AI chat FY2024: 774,000 cases (91% satisfaction)

Improvement of operator response quality

Smooth response through text linkage with automated AI response and operators

Work is streamlined and workload is reduced for operators, in addition to improving response quality, through call summary by generative AI

Future prospects of use of generative AI

Analysis of Voice of the Customer: Visualization of customer needs and issues

Call reason analysis: Utilized to improve service quality and properly assign operators

Legal and guideline check: Comprehensive checks for omissions in communication during phone calls related to compliance with laws and guidelines

Prohibited

words

Automated AI response

Voice bot

Chat bot

FAQs

Analysis of Voice of the Customer

Automatic identification and analysis of customer voices from conversation logs

Identify Categorize Summarize

Automated audio AI response

Automated chat response

AI search engine

Data aggregation

Linkage

Utilization of generative AI

Call reason analysis

Inquiries are categorized from conversation logs, and aggregation data is visualized and analyzed

Data categorization and output Dashboard

Operator response

Data analysis environment

Staffed chat

Staffed call

Legal and guideline check

Omissions and prohibited words are checked from conversation logs

Omission

有人チャ ット

有人TEL

伝え漏 れ

NGワー ド

19

*1: Customer Experience; experience of customers in their involvement with companies

*2: Employee Experience; experience of employees as they work in the company

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E x a mple s o f t ra ns f o rma t io n

Development of healthcare service utilizing high-definition power data and AI technology

・Energy Gateway, Inc. is established together with an AI startup to develop and expand IoT platform services

・Comprehensive healthcare services, including nursing, monitoring and medical care, are developed by accumulating, analyzing and utilizing high-definition electric power data leveraging TEPCO's unique sensing technology

・Innovations are being created by building an ecosystem with various organizations of industrial, government and academic collaboration

Key points and prospects of the initiative

Promotion of health by visualizing daily rhythm

High-precision electric power data is collected and analyzed to estimate the daily rhythm of the elderly by utilizing AI

Services are provided based on the estimated daily rhythm to improve QOL of customers

TEPCO Power Grid / Energy Gateway, Inc.

Innovation through various co-creation opportunities

The world's first prediction model*1 for cognitive decline using electric power data is jointly developed (detection rate exceeds 80%)

Development of healthcare services is being promoted together with industry, government and academia by collaborating with medical organizations, local governments and external companies

Health tech operators

Notification of abnormality

Data of living behavior

Visualization of the daily rhythm of the elderly

Electric power sensor (total volume and appliance use)

Utilization of AI

App

・Cognitive status and evaluation result of lifestyle are displayed

Visualization of daily rhythm / notification of cognitive status

Family

Living conditions and abnormal conditions are estimated based on electric power data close at hand

＊1：Contributes to early discovery of mild cognitive impairment (MCI) which is the pre-stage of dementia

Operator dashboard

・Evaluation results provided with the app are centrally managed by the operator

Care providers, etc.

Early discovery of status change

(care manager)

Elderly living alone

Quality care support

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E x a mple s o f t ra ns f o rma t io n

Development of CN promotion service through advanced use of energy data

・Options for customers have become more complex when shifting from a large-scale centralized to a locally produced and consumed energy system, as international megatrends of GX＊1 and review of domestic policies run parallel

・Development of DX services that contribute to the formulation and execution of plans to realize carbon neutrality is promoted in a cross-organizational project framework as a long-term partner to customers, utilizing the strengths as an energy professional and utility data source company

Key points and prospects of the initiative

Highly effective and efficient decarbonization plan and management

Value of energy saving (carbon dioxide)

kWh value (DR)

Value of renewable energy (PV, atmospheric heat etc.)

Environmental values

High value-added services to

customers

Newly create

values from data

Platform that creates

and expands energy data values

Data integration through alliances

Advanced u f

tilization o

digital

te y

chnolog

Utilization of electric power big data

Challenging social issues of energy system structure transformation

Planning, introduction and monitoring of an optimum energy system for customers, such as renewable energy and storage battery, are supported through active utilization of data

New long-term ×accompanying decarbonization solutions

Long-term customer-oriented services that only the TEPCO Group can offer are provided

Highly reliable decarbonation plans and measures backed by various internal

and external big data are proposed

CN consulting capabilities are strengthened with accumulated data to ensure more efficient customer CN

Various alliances

Alliances through partnerships with financial institutions are expanded to broaden customer contact points and improve provided values

There is prospect to refine energy data integration and analysis technology and further improve added values to realize CN

＊1： Green Transformation; transforming industries and society into sustainable forms centered on decarbonization

Contribution to transformation of energy system structure for locally produced and

consumed renewable energy 21

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E x a mple s o f t ra ns f o rma t io n

Building a community based on CN and disaster prevention utilizing Area EMS

・Both "decarbonization of power sources" and "electrification of demand" are needed to realize a carbon neutral society

・Area EMS (Area energy management system) that maximizes the use of regional renewable energy is implemented to flexibly operate renewable energy power sources and storage batteries according to regional characteristics and promote carbon neutrality of the entire region and strengthen disaster prevention performance

・By continuing to collaborate with local governments, educational institutions and companies, decarbonization-leading regional development projects and new businesses are promoted and new values are created

Key points and prospects of the initiative

Development of EMS according to area characteristics

Area EMS according to the characteristics of each area is developed to realize local production

Formation of VPP (future image)

Renewable energy within and outside the region

and consumption through self-wheeling by municipal facilities, by utilizing various renewable energy generation and power transmission and distribution facilities as well as accumulated data and know-how (sales activities for horizontal deployment to other municipalities are being implemented)

Actual supply-demand information is collected in real time and overall supply-demand status at each location is visualized, thereby realizing maximized local production and consumption through remote storage battery control

Integrated management

Off-site PPA

Waste power generation

EMS

Solar power generation

Off-site PPA

Energy saving building EcoCute

Renewable energy value Digital and data linkage

Prediction precision is planned to be improved by analyzing accumulated power generation and

demand/supply data utilizing AI

A self-wheeling scheme using the data of the Power Data Management Association*1 is being considered

Expired FIT and new PV

Self-delivery

Demand/supply management with Area EMS / maximized local production and consumption and

Building local communities

through "industry-government-academia collaboration"

Local production and consumption of energy is promoted through area-based energy solutions within specific areas and energy sharing among different locations

Carbon neutralization of the entire region and disaster prevention performance is enhanced

ZEH

Storage battery / multi-functional distribution board

VPP formation

VPP•

Supply & demand

management

/ same time, same amount

Storage battery

/ EMS

Further creating values through the aggregation business

VPP*2 (virtual power plant) that is integrally controlled using IoT technology is developed, utilizing

Government facilities

Solar car port / automatic EV driving

School facilities Private sector facilities

storage batteries as balancing resources, while deploying small-scale, distributed renewable energy power sources in specific regions

There is prospect to further create values by developing a next-generation power distribution

On-site PPA

Shared mobility

scheme with a new aggregation platform

Moving forward, implementation and deployment for companies are also planned to be further explored

Storage battery

/ EMS

On-site PPA

ZEB

Electrified mobility On-site PPA /

Storage battery

*1: A general incorporated association certified by the national government to safely and appropriately use and provide nationwide power data. The secretariat is GDBL Corp. which is funded by TEPCO Power Grid and others.

22

*2: Virtual Power Plant; functions as if it were a single power generation facility by integrally controlling distributed power sources using information and communication technologies, etc.. Participation in the VPP Construction Demonstration Project of the Ministry of Economy, Trade and Industry since 2016.

Foundation for DX Promotion

23

White Paper

01

Foundation for DX promotion

Framework of DX promotion organization

・Cross-group DX Business Innovation Committee, consisting of Presidents, CFO＊1 and CIO, has been established with collaboration also with the Board of Directors

・Overall policy of the TEPCO Group "TEPCO DX" is developed and the DX project is promoted under the DX Business Innovation Committee

・Directly controlled cross-group projects are formed, and DX ecosystem, DX talent development and digital infrastructure are prepared

Commander

D X B u s i n e s s I n n o v a t i o n C o m m i t t e e ( P r e s i d e n t s , C F O , C I O )

Promotion Office

DX Project Office KAIZEN & DX Strategy Office Digital Transformation

Innovation Promotion Office

TEPCO DX Overall policy

DX project DX project DX project DX project

Cross-group

Common

P r o j e c t u n d e r d i r e c t c o n t r o l o f t h e D X B u s i n e s s I n n o v a t i o n C o m m i t t e e

D X e c o s y s t e m / D X t a l e n t d e v e l o p m e n t / D i g i t a l i n f r a s t r u c t u r e

＊1：CFO (Chief Financial Officer) 24

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02

Foundation for DX promotion

Ecosystem of DX promotion

• DX ecosystem aiming for human resources development and project promotion is developed to promote TEPCO DX

  ・Extensive collaboration with the planning division, human resources division, IT/system division and other business divisions

  D X B u s i n e s s I n n o v a t i o n C o m m i t t e e ( P r e s i d e n t s , C F O , C I O )

  
  
  

  Business company

  Nuclear power / decommissioning

  Corporate

  Directly controlled project

  
  
  

  Human resources / ideas

  Transformation activity environment

  DX talent

  development program

  Know-how CoE

  DX internal awareness

  Internal community

  DX

  t ale nt

  DX

  project

  Digital resources

  Data infrastructure

  Analysis/AI tools

  Internal system

  System rules

  System division

  TEPCO SYSTEMS

  Corporation

  
  
  

  Achievements (work transformation / new business creation)

  EX (TWI＊1)

  
  
  

  Stable supply

  
  
  

  CX ・UX

  
  
  

  Carbon

  neutrality

  
  
  
  
  

  Unlock!

  Producing transformation-ready talent, patterns of employee behavior, way of working

  ＊1：TWI = TEPCO Work Innovation (initiative to create a comfortable working environment and promote workstyle reform) 25

  White Paper

  
  
  

  03

  
  
  

  Foundation for DX promotion

  
  
  
  
  

  DX talent development policy

  ・Policy of development of DX talent based on the trend of latest technologies such as generative AI is developed along with the management philosophy and business strategies

  ・Image of DX talent is defined for 6 positions in 4 levels based on the digital skill standard＊1, based on knowledge, skills and experience required for the promotion of TEPCO DX

  ・Approx. 8,000 people, which accounts for 30% of all employees, have been developed up to FY2025 as core personnel for DX promotion

  2022年度実績（取 組当初）

  DX talent development policy

  Human resources portfolio

  Skill level is defined for 6 positions

  in 4 levels based on the digital skill standard

  6 positions of

  TEPCO DX talent

  Certified levels and expected roles

  Project manager

  Business architect

  Data scientist

  IT/system development

  Lv.4 Advanced expertise / guidance Lead company-wide DX with high expertise and play a leading role

  Lv.3 Promotion

  Play a central role in the promotion of each project of DX

  Lv.2 Practice

  Execute the role required for each organization with support from Lv.3 personnel

  Cyber security

  UI/UX

  designer

  Lv.1 Understanding Understand the methods and technologies of DX

  Lv.0 Basics

  Know the importance of DX

  All employees aim for Lv.1 and higher

  Development goal and result

  All employees to DX talent

  Approx. 30% (8,000 people) of all employees have

  transformed into core personnel for DX promotion

  Outlook of FY 2025

  Lv.4 Lv.3 Lv.2

  Lv.1

  Lv.4 Lv.3

  Lv.2

  Lv.0＊2

  Lv.1

  Lv.0

  Approx.

  2,400 people

  Approx.

  530 people

  8,000 people

  1,300 people

  Result of FY2022 (outset of the initiative)

＊1：Guideline for capabilities, skills and mindset to be acquired by all business professionals involved in DX, formulated by the Ministry of Economy, Trade and Industry and the Information-technology Promotion Agency, Japan (IPA)

＊2：Digital literacy education has been implemented for all Group employees

IPA case studies on the use of digital skill standard (in Japanese only)

26

Corporate feedback on the IPA IT passport test (in Japanese only)

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03

Reskilling cycle of DX talent

Foundation for DX promotion

・DX talent development cycle of company-wide awareness, visualization, development, assignment and value demonstration is implemented to improve motivation and capabilities of each employee and maximize performance of the entire organization

・DX talent leads business structure transformation by promoting assignment and value demonstration in priority projects*1 through development

of internal DX talent and recruitment of external personnel

Measures and coordination for fostering culture

Company-wide awareness

Value demonstration

Active in DX projects at

one's assigned position

• • Raise awareness of DX among all employees including corporate executives and management (DX study session for corporate executives, etc.)

  • Encourage acquisition of DX-related qualifications certified for each position (development and operation of a self-learning community, etc.)

  • Expand the mechanism that stimulates and evaluates motivation for autonomous career development (various skill certification systems, etc.)

  • Expand the "candidacy-system" personnel recruitment

    system

  • Assign appropriate personnel to the appropriate place at the appropriate timing of internal and external practical opportunities based on human resources data such as skill, level and qualifications

    Assignment Visualization Development

  • Develop role models and career path

    for each position

  • Support career challenge based on

    the career path of each person

    • Build a system for level certification for each position

    • Visualize the quality and quantity of DX talent required to realize

      the DX vision

    • Evaluate personnel including qualitative elements (challenging

      mindset, etc.) through internal and external assessments

    • Award an emblem to highly skilled DX talent

      D X t a l e n t

      Expansion of recruitment through flexible evaluation and treatment based on the trend of latest digital technologies

      
      
      

      R e c r u i t m e n t o f e x t e r n a l

      Rate of assignment of highly-skilled personnel to priority projects

      100% in FY2025

      ＊1：Major DX projects

      TEPCO DX Learning Platform

• Self-directed learning environment without being restricted by time and place (TEPCO CAREERSHIP＊2）

• Optimized development contents according to position, level, skills, etc. based on

  learning data of each person

• Creating a place for challenge and friendly competition, such as competitions and

study sessions

Hired number of highly specialized personnel

193 People in FY 2024

＊2：Learning management system that centrally manages training and learning contents participation, progress tracking, participation history, and skills 27

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04

Foundation for DX promotion

Fostering of corporate culture

・Various measures to foster company-wide DX culture are deployed such as providing contents that create opportunities for each employee to think about and act on DX as their own matter, creating an environment for transformation through the promotion of interaction through DX com munities and contact points and building co-creation spaces for introduction of citizen development tools and generative AI

・Management calls out to mangers to foster a company-wide culture that encourages challenges regardless of position

People Process Place

Creating opportunities to make it one's own

matter

Spontaneous and active interaction Creating an environment for transformation

・Delivery of company-wide messages by management

・Introduction of internal and external good practices and new projects

・Distribution of video of role model employees for DX practice

・Provision of training programs that respond to challenges (sessions on generative AI, tool utilization practice workshops, etc.)

・Bi-directional communication with management (dialogue meetings)

・Call for DX ideas developed in the field (consulting service, business plan contest by level from young employees to organization leaders)

・Development of DX communities, promotion of interaction

・Cross-departmental support for PoC/PJ for business and work transformation

・Reverse mentoring from young employees to management＊1

・Incubation center that promotes internal and external co-creations and new business creation

・Agile development garage that searches for

possibilities of technologies

・Company-wide deployment of citizen development tools and generative AI

・Centralized visualization of ideas, PoC, IT tools, etc. throughout the company

Fostering of DX mindset

Promotion of embodiment and implementation of ideas

Transformation through open and agile co-creation

Unique environment that supports and encourages all-employee participatory transformation activities

"All employees to DX talent" is promoted

with each employee playing a leading role

＊1：Mechanism that enables mutual learning with young employees sharing digital technologies and new values with management 28