Integrated Resource Plan

Data, Reports, & Policy

Ameren Missouri's Integrated Resource Plan (IRP) is a 20-year plan that supports cleaner energy in Missouri, including major expansions of solar and wind power.

Targeting Net-Zero Carbon Emissions by 2045

Ameren's companywide goal of net-zero carbon emissions by 2045 is science based and consistent with the objectives of the Paris Agreement and limiting global temperature rise to 1.5 degrees Celsius. This goal encompasses both Scope 1 and Scope 2 emissions, including other greenhouse gas emissions of methane, nitrous oxide and sulfur hexafluoride. This goal is dependent on a variety of factors, including cost-effective advancements in innovative clean energy technologies as well as constructive federal and state energy and economic policies. Interim targets include reducing carbon emissions 60% by 2030 and 85% by 2040, in each case based on 2005 levels.

Download Plan Summary (PDF)

*Three-year average CO₂ emissions for 2021, 2022, and 2023. Ameren's goals encompass both Scope 1 and Scope 2 emissions including other greenhouse gas emissions of methane, nitrous oxide, and sulfur hexafluoride.

Supporting Economic Development, Reliably Meeting Customer Needs

Highlights of the plan include:

Supporting robust economic expansion and job creation across Missouri by planning to provide for 1.5 gigawatts of expected new energy demand by 2032.
Accelerating generation investments to bolster reliability with a balanced mix of energy resources to deliver more reliable, cleaner lowest-cost energy for our customers.
Meeting customers' needs in an increasingly electrified future.

Preferred Plan Timeline

Note: Reductions are presented as of the end of the period indicated and based off 2005 levels. Wind and solar additions, energy center retirements by end of indicated year.

1. Ameren's goals encompass both Scope 1 and 3 emissions including other greenhouse gas emissions of methane, nitrous oxide, and other sulfur hexafluoride. This goal is dependent on a variety of factors including cost-effective advancements in innovative clean energy technologies as well as constructive federal and state energy and economic policies.