Buying a home with solar can be a worthwhile investment for long-term low-cost energy bills, but it's important to know exactly what you're buying into before signing the dotted line. A homebuyer in ...

Hawaiian Electric said Tuesday that almost half of all Oahu single-­family homes have been outfitted with rooftop solar systems — even as Hawaii’s solar industry faces a rocky, uncertain future with ...

Rooftop solar installations may become costlier as new domestic sourcing rules for solar cells take effect. The mandate is ...