“Powerwall is a home battery that charges using electricity generated from solar panels, or when utility rates are low, and powers your home in the evening. It also fortifies your home against power outages by providing a backup electricity supply. Automated, compact and simple to install, Powerwall offers independence from the utility grid and the security of an emergency backup.”
“Imagine if your hot water heater could generate enough electricity to power your entire house, while still heating your water. That’s the promise of Nirvana’s Home Energy System. Using clean natural gas that’s already running to your house, our combined heat and power (CHP) system generates electricity, hot water and heat (for radiator-based home heating).