Ground Zero Electric is a Tesla Certified Installer serving Greater Cincinnati and Northern Kentucky. We install the Tesla Powerwall 3 - the industry's most recognized home battery system - for whole-home backup protection, energy cost savings, and grid independence.
Powerwall works with or without solar. When installed standalone, it charges from the grid and provides automatic backup power during outages. When paired with solar, it stores excess energy for use when the sun goes down or when rates are highest.
| Energy Capacity | 13.5 kWh per unit |
| Continuous Power | 11.5 kW AC per unit |
| Surge Capability | 185 LRA - starts heavy loads including central AC |
| Solar Input | Up to 20 kW DC (integrated inverter - no separate inverter needed) |
| Scalability | Up to 4 Powerwall 3 units + expansion packs (up to 54 kWh total) |
| Transfer Time | Seamless - automatic switchover during outages |
| Enclosure | NEMA 3R - indoor/outdoor rated, IP67 |
| Operating Temp | -4°F to 122°F |
| Warranty | 10 years |
| Monitoring | Tesla App - real-time monitoring, Storm Watch, VPP eligibility |
Financing available through Klarna and Wisetack →
Yes. Powerwall charges from the grid and provides backup power during outages. You can also use Time-Based Control to save money on time-of-use rate plans without solar. Solar can be added later if you choose.
One Powerwall 3 unit can support most homes for essential backup. For whole-home backup including AC and heavy loads running simultaneously, two units may be recommended. We assess your home's energy usage during the site visit and recommend the right configuration.
Yes. Powerwall 3 can handle startup loads up to 185 LRA, which is enough to start most residential central AC systems. For larger or older systems with higher startup draw, a second unit may be recommended.
The Backup Switch is Tesla's simplified installation option that replaces the traditional backup loads subpanel. It installs behind your utility meter and reduces installation time and cost significantly. We'll determine if your home is a candidate during the site assessment.
A single 13.5 kWh Powerwall can power essential loads (refrigerator, lights, Wi-Fi, sump pump, phone charging) for roughly 10-12+ hours. Multiple units or paired solar extend that significantly. Storm Watch pre-charges the battery when bad weather is incoming.
Tesla warranties the Powerwall 3 for 10 years. The battery must be connected to the internet to secure the full warranty. Installation by a Tesla Certified Installer is required to maintain warranty coverage.
It depends on your current setup. Powerwall 3 has an integrated solar inverter and can connect directly to solar panels. If you have an existing third-party inverter, we'll evaluate compatibility during the site assessment. Powerwall 3 is not compatible with older Powerwall 2 systems.
We mount the Powerwall unit (wall or ground), install the Backup Gateway or Backup Switch, connect to your electrical panel, configure the Tesla App, and commission the system. We handle all permitting and utility coordination. Most installations are completed in one day.
Schedule a free site assessment. We'll evaluate your home and provide a detailed estimate for Tesla Powerwall installation.
Call (513) 866-8685