Amends the Environmental Protection Act. Defines "battery storage resource" and "total State-installed generation capacity". Provides that no variance, adjusted standard, or other regulatory relief otherwise available in the Act may be granted to the emissions reduction and elimination obligations in the amendatory provisions if battery storage resources constitute at least 10% of the total State-installed generation capacity in the State. Provides that, if battery storage resources constitute less than 10% of the total State-installed generation capacity at any time after the effective date of the amendatory Act, the Environmental Protection Agency shall delay enforcement of certain timelines and relieve generators of their obligation not to exceed their existing emission levels. Provides that, for a large GHG-emitting unit that uses gas as a fuel and is subject to certain restrictions within the provisions concerning greenhouse gases, the unit may exceed its existing emissions during run hours dispatched by a regional transmission organization during emergency, pre-emergency, or conservative operations or run hours that are required to maintain system reliability. Makes other changes. Effective immediately.

Statutes affected:
Introduced: 415 ILCS 5/9