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Tesla Powerwall 3 Specifications
| Model | 1707000-xx-y |
| Energy Capacity | 13.5 kWh AC |
| Nominal AC Power | 11.5 kW AC |
| Grid Voltage (Input & Output) | 120/240 VAC Split Phase |
| Maximum Continuous Discharge | 11.5 kW (On-Grid) 10.2 kW (Off-Grid PV) |
| Maximum Charge Current/Power | 32.5 A AC / 8 kW |
| Load Start Capability | 185 LRA |
| Solar to Home/Grid AC Efficiency | 97.5% |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Dimensions (H × W × D) | 43.5" × 24" × 7.6" |
| Weight | 287 lbs (130 kg) |
| Certifications | UL 1741-SA, UL 9540, ANSI C12.20 |
| Connectivity | Wi-Fi 2.4 or 5.0 GHz (Ethernet capable) |
| Warranty | 10 Years |
Tesla Powerwall 3
SKU TESLA-POWERWALL-3-1707000-21-Y
Tesla Powerwall 3 13.5kWh Battery System
The Tesla Powerwall 3 is a fully integrated solar battery system combining 13.5 kWh of usable energy capacity with an integrated 11.5 kW continuous power inverter. Supporting up to 20 kW DC of solar input across 6 independent Maximum Power Point Trackers, Powerwall 3 delivers 97.5% solar-to-grid efficiency while providing seamless whole-home backup protection. The system handles heavy loads up to 185 LRA motor start capability, allowing a single unit to power most residential applications including HVAC systems, well pumps, and EV chargers.
Powerwall 3 operates in temperatures from -4°F to 122°F with intelligent Heat Mode for cold-weather performance optimization. The compact form factor measures 43.5" × 24" × 7.6" and weighs 287 lbs, featuring flood resistance up to 2 feet and integrated system controller for simplified installation.
Tesla Powerwall 3 Features
- Whole-Home Backup Power: Single-unit capacity to power entire residential loads at 11.5 kW continuous with seamless transition during grid outages and Storm Watch automatic pre-charging for severe weather events
- Fully Integrated Solar System: Built-in inverter with 6 MPPT channels and 97.5% efficiency eliminates need for separate solar inverter.
- Heavy Equipment Compatible: 185 LRA motor start capability supports high-inrush loads including central air conditioning, heat pumps, and well pumps.
- All-Climate Reliability: Extended -4°F to 122°F operating range with intelligent Heat Mode maintains optimal charge/discharge performance in extreme temperatures.
- Scalable Energy Capacity: Add Powerwall 3 Expansion units anytime to increase storage up to 40.5 kWh additional capacity per main unit.
Tesla Powerwall 3 Applications
- Whole-home backup power
- Solar self-consumption optimization
- Time-based control for utility rate optimization
- Grid services participation
- Energy independence
- Peak load management
Tesla Powerwall 3 Technical Review
The Tesla Powerwall 3 represents a fully integrated approach to residential energy storage by combining battery capacity, solar inverter, and system controller in a single 287 lb enclosure. The integrated 11.5 kW inverter with 6 independent MPPT channels eliminates the need for separate solar inverter equipment, reducing total system cost and potential failure points. The 97.5% solar-to-grid efficiency and support for up to 20 kW DC solar input makes Powerwall 3 suitable for installations with substantial solar array capacity. The 185 LRA motor start capability addresses a critical limitation of many residential battery systems - the ability to start high-inrush equipment like HVAC compressors and well pumps without requiring oversized battery banks or specialized soft-start equipment.
Flood resistance to 2 feet of water and the compact wall-mounted form factor provide installation flexibility for garage, basement, or exterior locations. The scalable architecture using Powerwall 3 Expansion units allows capacity increases up to 40.5 kWh additional energy per main unit, enabling right-sized initial installations with straightforward future expansion.
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