Case Study:

Gilbert Residence


Nashville, TN

Solar Size


Equipment Installed

REC solar panels & Tesla Powerwalls

Storage Capability

27kWh - whole home backup

“After the tornado, my neighbors came to our house to charge their phones and other devices until grid power was restored.” – Brian Gilbert

In August 2019 LightWave installed a solar and Tesla Powerwall system for the Gilbert residence in Nashville. The system powers about 75% of the home’s electricity use.

It also provides power during grid outages, which the Gilberts were thankful for on March 3, 2020. Tornado damage knocked out grid power for 2 days.

“My neighbor took a direct hit, and the home was devastated,” Brian says. “My house was basically untouched, fortunately,” he says. “Until grid power was restored, my neighbors came to our house to charge their phones and other devices,” Brian explains.

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The Powerwalls automatically took over, and the lights barely flickered. Though Brian needed to monitor his energy consumption and battery charge status, that was easy to do on Tesla’s mobile app.

When the grid is on, they don’t have to closely monitor the battery level or their energy consumption, though sometimes Brian chooses to anyway, just for fun.

“We have changed some of our energy habits to optimize the system,” he says. “For example, our electric car is the largest load, so we try to charge it when the sun is out, if possible,” he says.

The Gilberts expect their home’s self-power performance to remain around 75%.  Their HVAC system is backed up using a soft starter which greatly reduces startup current and allows the Powerwall battery to cover the AC load in an outage.

“I am really happy with my solar and battery system,” Brian says. “I am grateful that it was active after the tornado so we could help out our neighbors,” he adds.

Watch our Powerwall demo video recorded at the Gilbert home!


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