Solar Panels with Powerwall

Is it better to store my solar energy or sell it back to the utility?

The answer depends on personal preference and the amount your utility pays you for solar energy. Selling energy can help offset the cost of a solar installation, but at night your home will depend on the utility. Storing energy decreases your reliance on the utility and can allow you to go for days without using energy from the utility. Whether you store energy or send it back to the grid, installing solar can decrease your electricity bill.

How do solar panels work during a utility outage?

If you have both solar and Powerwall, you can power your home through an outage using the solar energy generated and the energy stored in Powerwall. Your home will operate independently, running on solar energy during the day and storing excess energy for later use. If you don’t have a battery, your solar panels will not work during a utility outage due to grid safety requirements.

Can I add a Powerwall to my existing solar panel system?

Yes, Powerwall can be integrated with your existing solar system. Powerwall is compatible with solar inverters from SMA, SolarEdge, Fronius, Enphase micro inverter, Delta and ABB. We continue to explore compatibility with other inverter manufacturers. Visit to get started adding a Powerwall to your existing solar panel system.