What Happens When Utilities Start to Integrate the IRA into Planning?

This RMI briefing examines how the Inflation Reduction Act (IRA) influences utility integrated resource plans (IRPs), using DTE, Michigan's largest investor-owned electric utility, as a primary case study. The document details how incorporating IRA tax credits into planning can lead to significant customer savings, accelerated coal retirements, and increased renewable energy capacity.

• DTE, Michigan's largest investor-owned electric utility, projected that incorporating IRA tax credits into its November 2022 integrated resource plan (IRP), branded as the 'Clean Vision', could save customers approximately $500 million over the 20-year duration of the plan.
• DTE's 2022 IRP demonstrates a significant shift toward clean energy compared to its 2019 plan, proposing the addition of over 15 GW of solar and wind by 2042 to increase renewables' share of its portfolio from 10 percent to approximately 60 percent. The plan also proposes nearly 3 GW of battery storage by 2042, supported by IRA tax credits.
• The 2022 IRP accelerates the retirement of the Monroe Power Plant, the fourth largest coal plant in the United States, with phased retirement dates set for 2028 and 2035, moving the closure forward from the 2040 date proposed in the 2019 IRP.
• The briefing identifies several ways the IRA can transform utility planning, including lowering renewables costs via production and investment tax credits, accelerating electrification through EV and heat pump incentives, increasing energy efficiency via affordable retrofit funding, and providing new financing for coal asset transitions.
• The Energy Infrastructure Reinvestment (EIR) program, which appropriates $5 billion through 2026 to guarantee loans for retooling or replacing decommissioned energy infrastructure, could enable DTE to align its remaining coal plant retirements with Michigan's goal to phase out coal by 2030.

APA

RMI (2023). What Happens When Utilities Start to Integrate the IRA into Planning? https://rmi.org/resources/what-happens-when-utilities-start-to-integrate-the-ira-into-planning/

Chicago

RMI. What Happens When Utilities Start to Integrate the IRA into Planning? 2023. https://rmi.org/resources/what-happens-when-utilities-start-to-integrate-the-ira-into-planning/.

Wikipedia

{{cite report |author=RMI |title=What Happens When Utilities Start to Integrate the IRA into Planning? |date=26 January 2023 |url=https://rmi.org/resources/what-happens-when-utilities-start-to-integrate-the-ira-into-planning/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{rmi2023what, author = {{RMI}}, title = {{What Happens When Utilities Start to Integrate the IRA into Planning?}}, institution = {RMI}, year = {2023}, month = jan, url = {https://rmi.org/resources/what-happens-when-utilities-start-to-integrate-the-ira-into-planning/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }