The amount of money one can save by installing rooftop solar has gone, well, literally through the roof.
Solar panels became commercially available in the 1950s, and like many new technologies, they were not very effective at first. Generating just a few watts of electricity was the norm, according to the Department of Energy.
Fast forward to 2024, and the technology is more powerful than ever, with a single cell capable of producing over 400 watts. And get this: 97% of them do exactly that — another huge step up from just four years ago, when most panels performed below that mark, according to a marketplace report by EnergySage.
