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

The briefing examines the impact of the Inflation Reduction Act (IRA) on utility integrated resource plans (IRPs), highlighting how DTE, Michigan's largest investor-owned utility, projected $500 million in customer savings over 20 years by incorporating IRA tax credits. The document outlines how IRA incentives can lower renewable costs, accelerate coal retirements, and increase battery storage deployment, while urging other utilities and regulators to leverage these tools for a faster energy transition.

• DTE, the largest investor-owned electric utility in Michigan, projected that incorporating IRA tax credits into its 20-year 'Clean Vision' plan would save customers approximately $500 million.
• Compared to its 2019 plan, DTE's 2022 IRP significantly increased clean energy targets, proposing over 15 GW of solar and wind by 2042 to reach a 60 percent renewable portfolio, and nearly 3 GW of battery storage, the latter of which was bolstered by IRA tax credits.
• The 2022 IRP accelerated the retirement of the Monroe Power Plant, the fourth largest coal plant in the US, with phased retirement dates set for 2028 and 2035, moving the final closure up from the 2040 date proposed in the 2019 plan.
• The document identifies several IRA mechanisms that can further shift utility planning, including the $5 billion Energy Infrastructure Reinvestment (EIR) program through 2026, which provides loan guarantees to replace or repurpose decommissioned energy infrastructure.
• The author suggests that other utilities filing plans in 2023, such as Duke Energy Progress, Duke Energy Carolinas, PacifiCorp, Santee Cooper, and Tennessee Valley Authority, should reflect IRA provisions to maximize ratepayer savings and decarbonization.

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} }