Incentives background

Senate Bill 1592 was signed into law in August 2007. This statute created the Energy Efficiency Portfolio Standard (EEPS) and a Renewable Portfolio Standard (RPS) and is among the most ambitious clean energy legislation in the nation. The EEPS will require Illinois utilities to reduce overall electric usage by 0.2% of demand in 2008, escalating to 2.0% by 2015. The RPS will require utilities to supply 2% of their power from renewable energy sources by 2008 for certain “eligible customers” and that target will escalate to 25% by 2025.

This law creates a substantial budget for programs and incentives to reduce electrical energy usage and demand for customers of ComEd and Ameren Illinois. During the first year, approximately $50 million will be devoted to various sectors of utility customers. ComEd and Ameren Illinois will focus approximately $38 million on residential, commercial and industrial customers and the Illinois Department of Commerce and Economic (DCEO) will utilize about $12 million on the low income and public sectors. During the second year, over $100 million will be available for programs and by the third year, over $150 million. This legislation is, by far, the largest opportunity Illinois has had for energy efficiency and demand reduction.

Links to dockets

For information on the documents submitted for EEPS plans, visit the eDocket page of the Illinois Commerce Commission at: Input the docket number and then click on Documents.

Dockets numbers:

Ameren Illinois Docket 07-0539

ComEd Docket 07-0540

DCEO Docket 07-0541


The Illinois Public Utilities Act (220 ILCS 5/)

The relevant sections are 8-103 and 8-104.

Capital Development Board

Green Building Resources and Energy Efficiency


Cost of Green Revisited – Langdon, Davis.  Reexamining the Feasibility and Cost Impact of Sustainable Design in the Light of Increased Market Adoption, July 2007.

Summary of academic, lab, library, community center building types.

To find information on federal energy policy, visit our Federal Energy Policy page.