Forbes contributors publish independent expert analyses and insights. I write about the economics of AI. On paper, the global solar industry has never looked stronger. The International Energy Agency ...

Many 10-year-old solar systems still work, but quietly underperform. In 2026, repowering outdated 3kW systems can cost less than repairs and deliver far bigger bill savings.

To the editor: Every month, California throws away enough solar and wind energy to power half a million homes — not because we don’t need it, but because our system is designed to waste it. While ...

Australia’s grid is buckling under the weight of its own solar success, With rooftop panels now installed on 2.7 million homes across the country, midday electricity generation regularly overwhelms ...

Forbes contributors publish independent expert analyses and insights. Dianne Plummer is an Energy Consultant and Certified Energy Manager. Rooftop solar has become one of the fastest-growing clean ...