Payback depends on your location: Interior BC (Kelowna, Penticton, etc.) sees 8–11 years thanks to sunny weather. Coast and Vancouver see 12–15 years. After the $5,000 rebate, typical systems cost $20K–$25K net, and generate $1,500–$2,000 annual savings. Longer warranty periods (25+ years) mean profitable production well after payback.