Integrated Resource Plan

Data, Reports & Policy

Ameren Missouri's Integrated Resource Plan (IRP) is a 20-year look ahead that lays out how we intend to keep the energy grid reliable and dependable as Missouri grows and customer needs change.

Supporting Economic Development, Reliably Meeting Customer Needs

Highlights of the plan include:

Strengthening reliability and minimizing costs for customers through a balanced mix of resources designed to perform in all conditions
Looking ahead to support Missouri’s continued growth by preparing the energy system to serve new and expanding customers across the state
Staying flexible so the energy system can adapt as customer needs, technology and conditions continue to evolve

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.

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.

Read Plan Summary (PDF)

Bar chart shows around 48M metric tons of CO2 emissions in 2005 and a decrease of 37% from 2021-2023, then decreasing 60% in 2030 and 85% in 2040 for a target of net-zero emissions in 2045.

*Three-year average CO2 emissions for 2022, 2023 and 2024. Ameren's goals encompass both Scope 1 and Scope 2 emissions including other greenhouse gas emissions of methane, nitrous oxide, and sulfur hexafluoride.