Dte Energy Company · NYSE:DTE
Dte Energy — Corporate Update (October 2025)
20 slides from Dte Energy's corporate update, Oct 20, 2025
Slide 1: Building a Smarter, Stronger Grid
Building a Smarter, Stronger Grid Powering Michigan – Session 2 October 20, 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: The focus for today is the Distribution System Plan, or DSP
The focus for today is the Distribution System Plan, or DSP Powering Michigan Series Planned agenda for today: • Session 1 – October 1, 2025: A look at our energy system and Overview of DTE Electric and the distribution system planning processes Summary of the DSP purpose and process Reminder
Slide 5: DTE Electric Overview
DTE Electric Overview • Founded in 1903 • Own and operate generation and distribution assets • Serving 2.3M customers in southeast Michigan • Nearly 10,000 employees DTE Electric Service Territory Now let’s walk through the energy system to understand electricity’s journey from being generated to di
Slide 6: The Electric System
The Electric System 6
Slide 7: DTE’s electric grid is vast and serves over 2.3M customers
DTE’s electric grid is vast and serves over 2.3M customers DTE Electric Distribution System • 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 million poles • Over 450,000 pole- or pa
Slide 8: Our planning is guided by the following objectives
Our planning is guided by the following objectives SAFE: Public and employees are kept free from injury RELIABLE AND RESILIENT: Minimal equipment outages and disruptions to customers AFFORDABLE: Cost-effective service provided to all customers CUSTOMER ACCESSIBILITY: Flexible energy options availabl
Slide 9: The DSP allows for review of the utility’s strategic roadmap
The DSP allows for review of the utility’s strategic roadmap 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 filing Requirements • Per guidelines, a utility must file a DSP every three years (or as otherwi
Slide 10: In July, the Commission provided filing guidelines for the DSP
In July, the Commission provided filing guidelines for the DSP State of the Context Planning for the Future System I. Objectives and III. Distribution System IV. Distribution System Planning Goals Overview • Action plan to address short-term and long-term challenges and needs II. Third Party and • G
Slide 11: We will file the next DSP – our fourth to date – by June
We will file the next DSP – our fourth to date – by June 30 • In 2016, the Commission directed DTE, Consumers and other utilities to develop a five-year distribution investment and maintenance plan – DTE filed plans in 2018, 2021, and 2023 – The 2021 plan was the first to contain a 15-year view of t
Slide 12: The DSP will include an update on DTE’s 4-point plan (1 of 4)
The DSP will include an update on DTE’s 4-point plan (1 of 4) • DTE plans to fully automate the electric grid by 2029 1 TRANSITIONING TO A SMART GRID with smart devices to reduce outages • DTE's new technology, like reclosers: – Helps crews pinpoint damage, making restoration faster – Allows us to i
Slide 13: The DSP will include an update on DTE’s 4-point plan (2 of 4)
The DSP will include an update on DTE’s 4-point plan (2 of 4) UPDATING EXISTING • DTE is actively inspecting and upgrading poles, cross 2 INFRASTRUCTURE arms, transformers, and other equipment throughout its service territory • New, modern pole-top equipment is made of stronger materials, experience
Slide 14: The DSP will include an update on DTE’s 4-point plan (3 of 4)
The DSP will include an update on DTE’s 4-point plan (3 of 4) REBUILDING SIGNIFICANT • DTE is working to rebuild significant sections of the 3 electric grid including new, modern substations and PORTIONS OF THE GRID entirely upgraded circuits − Areas with older infrastructure and lower voltage syste
Slide 15: The DSP will include an update on DTE’s 4-point plan (4 of 4)
The DSP will include an update on DTE’s 4-point plan (4 of 4) • Tree trimming is one of the most effective methods to 4 TRIMMING TREES improve electric reliability • Trees account for half of the time our customers are without power • DTE has trimmed nearly 40,000 miles of trees since 2015 • By the
Slide 16: Technology-related opportunities will be included in the DSP
Technology-related opportunities will be included in the DSP to further advance the grid and improve reliability and efficiency Technology Investment Opportunities in Consideration Enhanced Grid Last Mile Asset Inspection Asset Analytics & Visibility and Control Communications Technology Condition M
Slide 17: Four cost-effectiveness methods are being considered
The next DSP will have increased justification for investment; four cost-effectiveness methods are being considered Method Description Key Driver(s) Quantitative Monetized • Analytical approach comparing dollar value of benefits versus costs Benefit-Cost • Utilization of robust industry valuation fr
Slide 18: The planning process is underway to deliver a robust DSP
The planning process is underway to deliver a robust DSP 5-Year DSP Grid Needs Planning Safe Process Reliable & Resilient • Scenario modeling Technology • Benefit cost-analysis • Strategy development Affordable Customer Accessible Feedback Clean 18
Slide 19: Questions and Comments
Questions and Comments • What problems do you think we should be working to solve with the DSP? • What goals and possible solutions should we be considering? • How should DTE balance affordability with reliability? 19
Slide 20: Your voice matters!
Your voice matters! • Email us any questions or comments at DTE.DSP@dteenergy.com • Join Session 3 of Powering Michigan on November 3 at 5:30 pm to learn more about how we are planning our future energy mix – Visit dtecleanenergy.com for more information • Come learn more at the Community Open House