Tesla Powerwall Solar Batteries

Smart, Reliable, and Future-Ready Home Energy Storage

Tesla Powerwall batteries set the global standard for home energy storage, combining advanced lithium-ion technology with intelligent software and durable design. Built for safety, performance, and long-term reliability, Powerwall systems help homeowners store excess solar energy, protect against outages, and reduce dependence on the grid. Tesla delivers one of the most advanced and trusted clean energy solutions available today.

Whether your goal is blackout protection, maximising solar self-consumption, or achieving greater energy independence, Tesla Powerwall provides a powerful and fully integrated solution trusted by millions worldwide.

Introducing the Tesla Powerwall Series

Engineered for Smart Energy Storage: Powerwall 2 and Powerwall 3

Tesla’s Powerwall range simplifies energy storage with high-capacity lithium-ion batteries, intelligent automation, and seamless solar integration. The latest models, Powerwall 2 and Powerwall 3, offer excellent efficiency, strong backup performance, and scalable system design.

Powerwall 2

Powerwall 2 features a compact AC-coupled system that connects to any new or existing solar installation. With 13.5 kWh usable capacity, it is designed for daily cycling and dependable backup performance.

Powerwall 3

Powerwall 3 is Tesla’s latest model with an integrated solar inverter, higher continuous power output, and improved energy efficiency. This makes it ideal for larger homes, bigger solar arrays, and whole-home backup requirements. Multiple units can be added to create high-capacity energy systems suitable for modern households with high energy demands.

Both models feature built-in smart software managed through the Tesla app, providing real-time monitoring, automated optimisation, and full control of your home energy.

Key Features of Tesla Powerwall Batteries

Tesla Powerwall systems combine advanced engineering with user-friendly software to create one of the most capable and reliable energy storage systems in the world. Each unit is designed for long service life, superior efficiency, and consistent performance.

Tesla Powerwall Specifications

Parameter Powerwall 2 Powerwall 3
Battery Type Lithium-ion NMC Lithium-ion NMC
Usable Capacity 13.5 kWh 13.5 kWh per unit
Power Output 5 kW continuous, 7 kW peak 11.5 kW continuous (integrated inverter)
Round-Trip Efficiency Approximately 90% Approximately 97%
Cycle Life 10-year warranty with unlimited cycles 10-year warranty with unlimited cycles
Operating Temperature -20°C to 50°C -20°C to 50°C
Protection Rating IP56 IP56
Compatibility AC-coupled, works with any solar inverter Comes with fully integrated solar inverter
Expandable Up to 10 units Up to 10 units
Installation Wall or floor mounting Wall mounting
Backup Capability Essential loads or whole-home backup Whole-home capable with higher output

Power Smarter with Tesla and Stag Electrical

Unlock the full potential of your solar investment with Tesla Powerwall, one of the most advanced home battery systems available today. Whether you are upgrading an existing system or installing an all-new solar and battery package, Stag Electrical provides expert installation, system optimisation, and long-term support to ensure peak performance and reliability.

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Tesla Powerwall FAQs

Platinum Warranty Package

We pride ourselves on delivering exceptional products and services, which is why we offer our comprehensive 25-year Platinum Warranty. This industry-leading warranty goes above and beyond standard workmanship warranties, covering various components not typically included in manufacturer warranties.

With our Platinum Warranty, you can rest assured that your solar investment is well protected, giving you complete peace of mind as you enjoy the benefits of clean, renewable energy.

Workmanship (lifetime)*
Broken Tiles Repaired/Replaced*
Property Damage*
Wiring & Conduits
AC & DC Isolators
Excessive Broken Tiles*
No Call Out Fees for Warranty Repairs
Express Warranty Claims
Any At-Fault Damage Not Under Warranty
Racking, Railing, Brackets, and Clamps
Electrical Safety Certificate Provided
Warranty Documents Provided
Pre and Post Installation Photos
A picture of Stag Electrical imagery with the mention of 25 Years Platinum Certified