Add Yahoo as a preferred source to see more of our stories on Google. As we say in our guide to the best portable generators, the right time to buy one is before you need it. In other words, don’t ...

A Revolutionary 98% Efficient Solar-Powered Battery System to Deliver Clean, Affordable, and Reliable AC Electricity. For the first time in history, AC can be generated directly using DC batteries ...

In parts 1 through 3 I described the construction of the transformer we needed to generate the 10Amps AC. We still had to drive the transformer. Although I said I wasn’t going to discuss the complete ...

It hasn’t been that long since humans figured out how to create power grids that integrated multiple generators and consumers. Ever since AC won the battle of the currents, grid operators have had to ...