I've been waiting for this for a very long time," Nguyen, who also owns a Model Y, said as he ogled the car. Infamously, Tesla's founder Elon Musk misses more deadlines than he makes. Tommy Nguyen ...

All units come with an inverter included, and the most powerful model stores 6.6 kWh of energy. Prices start at roughly $3,000. Like Tesla's Powerwall, the Powervault must be installed by a ...