Power your home smarter with Tesla Powerwall.

Proudly installing Tesla Powerwall systems in Washington.

At Sustainable Energy Engineering, we don't just fit Tesla Powerwalls - we build energy systems that work. Whether you're adding battery storage to an existing solar setup or starting from scratch, we make sure everything's designed around your needs. With years of hands-on experience and a strong local reputation, we help you take control of your energy, cut your bills, and stay powered through anything.



Smart energy storage with Tesla Powerwall 3 - installed by local experts.

As a certified Tesla Powerwall installer, we bring the latest energy storage technology directly to homes and businesses in Washington. Powerwall 3 is Tesla's most advanced system yet – combining sleek design, intelligent energy control, and powerful performance in one scalable unit.


Why Tesla Powerwall 3?

Tesla Powerwall 3 does more than store electricity - it puts you in control of your energy. With 13.5 kWh of usable storage and up to 11.04 kW of continuous AC output, Powerwall 3 keeps your home powered even when the grid goes down. Whether you're charging from rooftop solar or off-peak tariffs, it reduces your dependence on rising energy prices and maximises self-sufficiency.


  • ✅ Whole-Home Backup – Automatically powers your entire home during outages and can start heavy appliances.

  • ✅ Built-In Solar Inverter – Simplifies installation with integrated solar connection, reducing hardware costs and boosting system efficiency.

  • ✅ Smart Energy Management – Optimise usage, set backup preferences and monitor performance in real-time through the Tesla App.

  • ✅ Modular & Expandable – Scale up to 4 Powerwalls and 3 expansions for up to 94.5 kWh of storage and 44 kW of output power.

  • ✅ Durable & Weatherproof – With IP55-rated enclosures, it's built to withstand the UK climate - indoor or outdoor installation ready.

Efficient. Intelligent. Built to last.

Powerwall 3 is designed to operate in all conditions, with tested performance from –20°C to 50°C. Whether you're building a new smart home or upgrading an existing solar setup, it's a high-performance, future-proof investment that increases property value while reducing carbon footprint.


Local expertise you can trust

We're not a national chain - we're an experienced local renewables company with a reputation for long-term reliability. From DNO applications to final commissioning, we handle everything in-house, ensuring your installation is compliant, secure, and customised to your energy goals.


Ready to power your home with Tesla's most advanced energy solution? Get in touch today for a free consultation and see how Powerwall 3 can transform your energy use and reduce your bills.


Request a Powerwall 3 Quote.

Take the first step towards energy independence.

CALL 0191 340 7001

Tesla Powerwall 3 Features & Benefits.

A closer look at the Tesla Powerwall 3.


Tesla Powerwall 3

Discover how Powerwall 3 delivers smarter, more resilient home energy. From whole-home backup to real-time control, here's what makes it one of the most advanced energy storage systems available today:


  • 🔋 Energy Storage Capability
    Stores energy generated from solar panels or the grid.
    ✔ Provides power at night or during outages, reducing grid reliance and ensuring 24/7 energy security.

  • 🏠 Whole-Home Backup
    Capable of powering your entire home – including large appliances.
    ✔ Keeps your lights, heating, and essential devices running even in a power cut.

  • ☀️ Built-In Solar Inverter
    Integrated inverter simplifies solar connection.
    ✔ Reduces installation time and hardware costs while improving efficiency.

  • 📈 Scalable System Design
    Easily expandable with multiple Powerwall units and expansion packs.
    ✔ Tailor your energy system to your home or business needs, now and in the future.

  • 📱 Smart Energy Management
    Full monitoring and control via the Tesla app.
    ✔ Track usage, set preferences, and control your system from anywhere.

  • ⛈️ Storm Watch
    Detects severe weather and auto-charges in advance.
    ✔ Ensures your system is full and ready to power your home in emergencies.

  • ⏱️ Time-Based Control
    Optimises energy use based on off-peak and peak rates.
    ✔ Cuts costs by charging when rates are low and using stored power when prices rise.

  • 🏡 Compact, Sleek Design
    Modern and compact for indoor or outdoor installation.
    ✔ Blends in with your property while delivering powerful energy storage.

  • 🌧️ Built to Last
    Weather-resistant, IP55-rated enclosure.
    ✔ Reliable in harsh UK conditions – from freezing cold to summer heat.

  • 🌿 Seamless Solar Integration
    Works with your solar panels to store unused energy.
    ✔ Maximise your renewable energy, reduce bills, and lower your carbon footprint.

We are a Which? Trusted Trader - a mark of our commitment to high-quality service and reliable work. This certification means we've passed strict checks and meet the highest professional standards. Our customers can trust us to always deliver on our promises with transparency and top-quality results.



Your local Tesla Powerwall 3 specialist.

With decades of five-star-rated experience, we've earned a trusted reputation for quality, honesty, and long-term support. While many installers come and go, we're committed to being here for the long run - offering reliable Powerwall 3 solutions, expert advice, and ongoing care you can count on. Choose us for a seamless installation and true energy independence.



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SUSTAINABLE ENERGY ENGINEERING LIMITED
Unit 11 Whitworth Road, Armstrong Industrial Estate, Washington, NE37 1PP.

PHONE: 0191 340 7001
MOBILE: 07814 642 103
EMAIL: info@susenergy.co.uk

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Company Registration Number: 5942135. VAT Number 939 5459 70. Established in 2006.

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