This story originally appeared on Vox and is part of the Climate Desk collaboration. The tricky thing about generating electricity is that for the most part, you pretty much have to use it or lose it.

Enphase Energy just launched a new off-grid system that lets homeowners power their homes without a utility connection – even for extended periods. The California-based Enphase says the off-grid setup ...

With all the electronics we’re lugging around nowadays, there are as many chargers to remember to take with you. Charging multiple devices with one charger has become easier, though, and a power bank ...