Tesla Powerwall
Battery Storage
Installation
Gulfstar Electric installs Tesla Powerwall systems throughout the Tampa Bay area — protecting your home from outages, slashing electricity bills, and maximizing solar self-consumption with certified, permit-pulled workmanship.
Serving Tampa, St. Pete, Clearwater, Bradenton & surrounding areas · (813) 599-8888
How Tesla Powerwall Works
From solar capture to storm-ready backup — a clear five-step picture of how your Powerwall system protects your Tampa Bay home 24/7.
Solar Energy Generation
Your solar panels (existing or newly installed) generate DC electricity throughout the day. Surplus energy that exceeds your home's immediate demand flows toward the Powerwall rather than being wasted or exported at low grid rates.
Smart Energy Storage
The Tesla Powerwall 3 stores up to 13.5 kWh of usable electricity at up to 97.5% round-trip efficiency. The built-in gateway continuously monitors grid status, solar output, home consumption, and battery state of charge in real time.
Intelligent Load Shifting
Time-based control lets you charge during off-peak hours (low utility rates) and discharge during peak hours — maximising your savings under time-of-use (TOU) electricity tariffs common in Florida. The Tesla app gives you full visibility and control.
Seamless Backup Activation
The moment grid power fails — whether from a hurricane, grid fault, or planned outage — the Powerwall detects the loss within 20 milliseconds and automatically switches your home to battery power. Critical circuits stay on with zero manual intervention.
Professional Commissioning
Gulfstar Electric's licensed electricians handle permitting, code-compliant installation, utility interconnect coordination, and full system commissioning. We register your Powerwall, configure the gateway, and walk you through the Tesla app before we leave.
Ready to power through the next Tampa Bay storm?
Request a Powerwall QuoteTesla Powerwall 3 — Full Specs
Every number you need to make a confident purchasing decision — capacity, power, efficiency, lifespan, and solar integration at a glance.
| Specification | Value |
|---|---|
| Usable Capacity | 13.5 kWh |
| Peak Power Output | 11.5 kW |
| Round-Trip Efficiency | 97.5% |
| AC Voltage | 120/240 V |
| Operating Temperature | -4°F to 122°F |
| Warranty | 10 Years |
| Stackable Units | Up to 10 |
| Dimensions (H×W×D) | 45.3″ × 29.7″ × 6.1″ |
| Weight | 287.7 lb |
| Solar Integration | Native |
| Grid-Tied / Off-Grid | Both |
| Monitoring App | Tesla App |
Source: Tesla Energy product datasheet. Specifications subject to change.
Key Features for Tampa Bay Homeowners
- Automatic storm-watch mode — charges to 100% when a hurricane is forecast
- Time-based control for TOU rate optimization
- Real-time energy monitoring via Tesla gateway
- Compatible with SolarEdge, SMA, Enphase & more
- UL 9540, UL 1973, IEC 62619 certified
Paired With Solar?
When combined with rooftop solar, Powerwall can cover the average Tampa Bay home for 12–24+ hours of backup depending on load profile — and may eliminate your electricity bill entirely on sunny days.
Get a Custom Sizing QuoteFrequently Asked Questions
Answers to the most common questions Tampa Bay homeowners ask about Tesla Powerwall battery storage, backup duration, solar integration, costs, and incentives.
Still have questions? Our Tampa Bay Powerwall experts are ready to help.
Ready to Power Your Home
Through Any Storm?
Gulfstar Electric is Tampa Bay's certified Tesla Powerwall installer. We handle everything — site assessment, permitting, installation, and commissioning — so your family has reliable backup power before hurricane season.
No-obligation quote · Serving Tampa Bay since day one · Fully permitted installations