The Nicor Gas Energy Efficiency Program helps our customers save energy and money on their natural gas bills. From providing free products and assessments to rebates and tips, we work with our customers to try to help them find the best ways to save for home and business. The program has been providing energy efficiency support to customers for over 10 years. During this time, we have provided over 1 million customers with more than $206 million in energy efficiency incentives.