Synopsis As Introduced Creates the Efficient and Green Illinois Tax Credit Act. Authorizes the Department of Commerce and Economic Opportunity to award income tax credits based on 25% of the cost of qualifying expenditures for energy efficient projects, such as solar energy equipment, Energy Star certified heat pumps, lighting retrofit projects, and wind equipment. Authorizes the Department to adopt rules. Provides that the credit may be carried forward for up to 5 taxable years. Amends the Illinois Income Tax Act to make conforming changes. Provides that the credit is exempt from the Act's automatic sunset provisions. Effective immediately.