Illinois Statutes20 ILCS 687/ Renewable Energy, Energy Efficiency, and Coal Resources Development Law of 1997.Article 2 - (This Article Is Compiled At 35 ILCS 640/)Article 3 - (Amendatory Provisions; Text Omitted)Article 4Article 5 - (This Article Is Compiled At 35 ILCS 645/)Article 6Article 7 - (Amendatory Provisions; Nonacceleration)Article 8Article I - (Amendatory Provisions; Inseverability)