Authorizes a personal income tax credit for residential solar energy systems

This bill creates a 25% tax credit for homeowners who purchase, lease, or buy power from solar energy systems installed on their primary residence in the state. It directly affects residential property owners who install qualifying solar equipment, with a maximum credit of $3,750 for systems placed in service before September 1, 2006, and $5,000 for systems placed in service on or after that date. The credit covers equipment purchases, long-term leases (10+ years), or power purchase agreements (10+ years) for systems on the taxpayer's principal residence. It also includes provisions for shared ownership in condos or co-ops, allowing proportional credit claims based on individual contributions.