HB3525

Gas utilities operating in Illinois would face new mandatory efficiency savings targets: 0.6% of annual sales in 2027, 0.8% in 2028, and 1% annually thereafter, with $100,000/day penalties for failing to file compliance plans on time.

Building owners, developers, and homebuilders would bear the full incremental cost of extending gas service to new construction, ending the current subsidized extension model and raising costs for new gas hookups.

HVAC contractors, weatherization firms, and building envelope specialists would see expanded market opportunity, as 67% of utility efficiency budgets must go toward insulation, air sealing, duct improvements, and heating controls rather than new gas equipment.

Property owners of low-income housing (households at or below 80% AMI) would gain access to expanded weatherization programs, with at least 25% of efficiency budgets earmarked for income-qualified households.

Real estate developers should expect new emissions standards for building heating under the Clean Building Heating Law article, plus a tradable clean heat credit system that could create compliance obligations or revenue opportunities.

Electrification contractors, heat pump installers, and clean energy training providers gain recognized status as 'clean energy jobs' under the Energy Transition Act, opening access to state workforce funding.

Gas utility customers in new developments should expect higher connection costs; existing customers may eventually face service discontinuation if the Illinois Commerce Commission finds adequate electric substitutes exist.