DCEO administers the Renewable Energy Resources Program (RERP) to encourage the utilization of renewable energy and support economic development in the state of Illinois. The RERP will, to the extent funds are available, fund projects increasing the utilization of renewable energy technologies in Illinois. The primary focus of the Renewable Energy Resources Program this fiscal year is solar and wind energy. Should sufficient funding be available, the Department may entertain applications for other types of environmentally preferable renewable energy.

Since its inception, DCEO has awarded over $30 million in grants and rebates under the Renewable Energy Resources Program successfully facilitating over $240 million in renewable energy project investment in Illinois.