IL SB3104

Defines "plug-in solar energy system" as a solar system that plugs into existing electrical outlets, exports no more than 1,200 watts, may include energy storage, and must be UL-certified and meet National Electrical Code standards.

Prohibits electricity providers from requiring customers to obtain approval, pay fees, or install additional equipment for plug-in solar systems.

Prevents HOAs, condominium associations, and landlords from unreasonably restricting or prohibiting plug-in solar systems with maximum output of 391 watts or less on balconies, patios, or similar areas.

Excludes plug-in solar systems from distributed generation rebates and net metering eligibility unless they meet formal interconnection requirements.

Shields electricity providers from liability for any damage or injury caused by a customer's plug-in solar energy system.