Can I use a personal loan for energy efficiency upgrades like solar, insulation, or windows?

Common energy efficiency project costs: Solar panel installation: $15,000-$35,000 (before ITC tax credit). Home insulation upgrade: $3,000-$10,000. Window replacement (energy-efficient): $5,000-$20,000 for whole home. Heat pump water heater: $1,000-$3,000 installed. Heat pump HVAC: $4,500-$12,000 installed. Air sealing and weatherization: $1,500-$5,000.

Inflation Reduction Act credits (2026): Energy Efficient Home Improvement Credit (25C): 30% credit on qualifying improvements, max $3,200/year ($1,200 general + $2,000 for heat pumps). Covers windows, doors, insulation, heat pumps. Residential Clean Energy Credit (25D): 30% credit on solar, battery storage, and geothermal systems. No annual cap for solar. These credits reduce your federal tax liability - directly reducing the net cost of the project.

Green loan programs: Mosaic: solar and home improvement loans, rates 5.99%-24.99% APR, up to 25-year terms. Goodleap: solar and clean energy financing, similar rates and terms. Enerbank (Regions EnergyHome): home improvement and energy efficiency loans through contractors, competitive rates. PACE financing: Property Assessed Clean Energy programs offer low-rate financing repaid through your property tax bill - but these are liens on your property and affect mortgage refinancing; research carefully.

Personal loan vs green loan: For strong credit (720+), general personal loans from LightStream, SoFi, or Marcus are often competitive with or better than specialized green lenders. Run both comparisons before committing.