Dte Energy Company · NYSE:DTE
Dte Energy — Corporate Update (October 2025)
20 slides from Dte Energy's corporate update, Oct 1, 2025
Slide 1: A Look at Our Energy System and Planning Processes
A Look at Our Energy System and Planning Processes Powering Michigan – Session 1 October 1, 2025
Slide 2: Helpful Hints – Closed Captioning
Helpful Hints – Closed Captioning For Closed Captioning, click here 2
Slide 3: Helpful Hints – Q&A
Helpful Hints – Q&A To ask or like a question, click here 3
Slide 4: Presentations, Recordings & Transcriptions
Presentations, Recordings & Transcriptions Visit dtecleanenergy.com 4
Slide 5: Today’s Agenda
Today’s Agenda ❑ Introduction to the electric system ❑ How power is made (generation), ❑ How power is delivered to your home (electric distribution system), and ❑ Introduction to two of DTE’s energy planning processes ❑Q&A Powering Michigan Series • Session #2: October 20, 2025 – Building a Smarter,
Slide 6: DTE Electric
DTE Electric • Founded in 1903 • Own and operate generation and distribution assets • Serving 2.3 million customers in southeast Michigan • Nearly 10,000 employees • In 2024: DTE Electric Service ‒ Spent $3.3 billion with local Territory Michigan businesses ‒ Contributed ~63,000 volunteer hours Now
Slide 7: The Electric System
The Electric System 7
Slide 8: The electric system follows a multi-step process from generation to distribution
The electric system follows a multi-step process from generation to distribution 8
Slide 9: Planning tools for generation and distribution
Planning tools for generation and distribution 2022 CleanVision 2023 Integrated Resource Plan Distribution Grid Plan1 1. This is now referred to as the Distribution System Plan. See July 10, 2025, Order in MPSC Case No. U-20147, Exhibit A 9
Slide 10: Our generation and distribution planning processes are guided by the following objectives
Our generation and distribution planning processes are guided by the following objectives SAFE: Public and employees are kept free from injury; meet all State and Federal requirements RELIABLE AND RESILIENT: Minimal equipment outages and disruptions to customers AFFORDABLE: Cost-effective service pr
Slide 11: DTE has a diverse portfolio of generation assets capable of producing more than 12,000 MW
DTE has a diverse portfolio of generation assets capable of producing more than 12,000 MW DTE Electric’s generation resources include: • 34 Solar Farms PINE RIVER SOLAR AND WIND PARK MONROE POWER PLANT • 20 Wind Parks • Ludington Pumped Storage1 • Slocum Battery Energy Storage System SLOCUM BATTERY
Slide 12: An Integrated Resource Plan (IRP) is how we plan to meet customer’s future electricity needs
An Integrated Resource Plan (IRP) is how we plan to meet customer’s future electricity needs Definition • An Integrated Resource Plan (IRP) is a comprehensive plan to meet customers’ electricity needs for the next 5, 10 and 15 years Requirements • Utilities are required by Michigan law to file an IR
Slide 13: Our generation mix is dramatically changing under our current CleanVision Integrated Resource Plan
Our generation mix is dramatically changing under our current CleanVision Integrated Resource Plan 2022 Plan Summary Proposed Generation Mix (2023-2042) (2005-2042, MWh%) (2023-2027) 13
Slide 14: Stations, sub-transmission lines, substations and overhead and underground distribution lines make up the power distribution system
Stations, sub-transmission lines, substations and overhead and underground distribution lines make up the power distribution system 14
Slide 15: DTE’s electric grid is vast and serves over 2.3 million electric customers
DTE’s electric grid is vast and serves over 2.3 million electric customers DTE Electric Distribution System DTE Electric's Grid: • 31,000 miles of overhead circuits ─ 28,500 miles of distribution ─ 2,500 miles of subtransmission • 14,500 miles of underground cable • Over 780 substations • Over 1 mil
Slide 16: A Distribution System Plan (DSP) is a strategic roadmap to upgrade and manage the grid
A Distribution System Plan (DSP) is a strategic roadmap to upgrade and manage the grid Definition • The Distribution System Plan (DSP) details a five-year investment plan as well as an extended (10-15 year) outlook from the date of filing1 Requirements • Per guidelines, a utility must file a DSP eve
Slide 17: The goal of our 4-point plan is to reduce power outages by 30% and cut outage durations in half by 2029
The goal of our 4-point plan is to reduce power outages by 30% and cut outage durations in half by 2029 TRANSITIONING TO A SMART UPDATING EXISTING 1 GRID 2 INFRASTRUCTURE 3 REBUILDING SIGNIFICANT PORTIONS OF THE GRID 4 TRIMMING TREES 17
Slide 18: Your voice matters!
Your voice matters! Share your Email us: Learn more: comments or questions: IRP: dte_electric_cleanvision@dteenergy.com DSP: DTE.DSP@dteenergy.com dtecleanenergy.com Powering Michigan Series • Session #2: October 20, 2025 – Building a Smarter, Stronger Grid • Session #3: November 3, 2025 – Planning
Slide 19: Questions and comments
Questions and comments • As a customer, what are your priorities as we plan for the future? • What should DTE understand about your community as we conduct these planning processes? • Is there anything you want us to highlight in our upcoming Information Sessions on: • The Distribution System Plan?
Slide 20: Thank you for joining!
Thank you for joining! Powering Michigan Series • Session #2: October 20, 2025 – Building a Smarter, Stronger Grid • Session #3: November 3, 2025 – Planning Our Future Energy Mix For links to upcoming sessions, visit dtecleanenergy.com