The Lavo home hydrogen battery is not a battery, it's an electrolysis system, hydrogen storage array and fuel cell power system rolled into one attractive cabinetLavo VIEW 3 IMAGES To get off the grid with home solar, you need to be able to generate energy when the Sun's out, and store it for when it's not. Normally, people do this with lithium battery systems – Tesla's Powerwall 2 is an example. But Australian company Lavo has built a rather spunky (if chunky) cabinet that can sit on the side of your house and store your excess energy as hydrogen. The...