
The Power of Tesla Powerwall
Whole-Home Backup Power
Energy Bill Savings
Reliable power when you need it most, even during outages.
Reduce your electricity costs by using stored energy.
Day & Night Energy Usage
Smart Energy Monitoring
Store solar energy for use any time, maximizing solar benefits.
Manage your energy in real-time with the Tesla app.

Powerwall: Advanced, Reliable, and Efficient
Energy Capacity
13.5 kWH
Power Output
11.5 kW continuous (on-grid and backup)
Inverter Efficiency
97.5% solar-to-grid efficiency
Durability
Operates from -4°F to 122°F, flood and dust resistant
Size and Weight
43.25 in x 24 in x 7.6 in
287 lbs
Scalability
Supports up to 4 units for increased storage capacity
Installation
Integrated inverter, seamless backup transition
Warranty
10-year limited warranty
Why Choose Farnsworth
Farnsworth Builders is a custom home builder and licensed general contractor specializing in solar energy and home efficiency. As certified Tesla Powerwall installers, we handle your project from start to finish, ensuring expert installation with a focus on performance, aesthetics, and seamless integration—customized for your home’s unique needs.
Certified Tesla Energy Installers
Licensed General Contractors
Full-Service Solutions from Design to Maintenance
Customized Installation with a Focus on Performance and Aesthetics

Our Process
Custom Design & Quote
We evalutate your home's energy needs and provide a tailored Powerwall solution with a detailed, transparent quote.
Seamless Installation
Our certified Tesla installers handle everything - from permits to expert installation - ensuring a smooth process.
Power Up & Save
Activate your system, monitor performance with the Tesla app, and enjoy backkup power and energy savings immediately.