Spread the loveWhole home battery backups have gained popularity as homeowners seek energy independence and protection ...

However, it's not compatible with older Powerwall systems. By home battery standards, Powerwall batteries are on the cheaper side. Tesla's Powerwall 3 costs about $1,000 per kWh of storage.

Federal safety regulators are opening an investigation into Tesla's self-driving system, responding after years of complaints and accidents involving the software. The announcement by the National ...