--- title: "Tesla Powerwall 3 Review 2026 | Certified UK Installer" description: "Tesla Powerwall 3: 13.5kWh capacity, £10,500 installed, 10-year warranty. Reviewed by Greentech Renewables, a Tesla Certified Installer in Greater Manchester." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "LocalBusiness", "name": "Greentech Renewables", "image": "https://www.greentechrenewables.co.uk/logo.png", "description": "MCS Certified Solar Panel and Battery Storage Installers in Greater Manchester. Trusted by 2000+ UK homeowners for renewable energy solutions.", "address": { "@type": "PostalAddress", "addressLocality": "Greater Manchester", "addressCountry": "GB" }, "telephone": "0333 577 7010", "email": "admin@greentechrenewables.co.uk", "url": "https://www.greentechrenewables.co.uk", "priceRange": "££", "aggregateRating": { "@type": "AggregateRating", "ratingValue": "4.9", "reviewCount": "105" }, "sameAs": [ "https://www.facebook.com/greentechrenewables", "https://www.instagram.com/greentechrenewables" ], "hasOfferCatalog": { "@type": "OfferCatalog", "name": "Renewable Energy Services", "itemListElement": [ { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Solar Panel Installation" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Battery Storage Systems" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Air Source Heat Pumps" } } ] } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Is Greentech Renewables a Tesla Certified Installer?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Greentech Renewables is a Tesla Certified Installer covering Greater Manchester and the North West, fitting the Tesla Powerwall 3 alongside its existing MCS-certified solar and battery storage services." } }, { "@type": "Question", "name": "How much does a Tesla Powerwall 3 cost installed in the UK?", "acceptedAnswer": { "@type": "Answer", "text": "A Tesla Powerwall 3 typically costs around £10,500 installed in the UK, including the unit's built-in hybrid inverter and Backup Gateway. Residential battery storage qualifies for 0% VAT until 31 March 2027, which is reflected in installed pricing." } }, { "@type": "Question", "name": "How does the Tesla Powerwall 3 compare to GivEnergy?", "acceptedAnswer": { "@type": "Answer", "text": "The Tesla Powerwall 3 has a larger single-unit capacity (13.5kWh vs GivEnergy's 5.2–9.5kWh range) and a built-in inverter, but costs more per kWh. GivEnergy is typically better value for most UK households; Tesla suits large homes wanting whole-home backup in one unit." } }, { "@type": "Question", "name": "Does the Tesla Powerwall 3 provide backup during power cuts?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. When installed with the Tesla Backup Gateway, the Powerwall 3 powers your whole home during a grid outage rather than just selected circuits. Greentech Renewables fits the Backup Gateway as standard with Powerwall installations where outage protection is required." } }, { "@type": "Question", "name": "How long is the Tesla Powerwall 3 warranty?", "acceptedAnswer": { "@type": "Answer", "text": "Tesla Powerwall 3 carries a 10-year warranty guaranteeing at least 70% capacity retention at the end of the warranty period." } } ] }, { "@context": "https://schema.org", "@type": "Service", "name": "Tesla Powerwall 3 Installation", "provider": { "@type": "LocalBusiness", "name": "Greentech Renewables Ltd", "url": "https://www.greentechrenewables.co.uk" }, "description": "Tesla Certified installation of the Tesla Powerwall 3 home battery and Backup Gateway, including MCS-certified design and solar integration, for homes across Greater Manchester and the North West.", "areaServed": [ "Manchester", "Greater Manchester", "Cheshire", "Lancashire", "Yorkshire" ], "serviceType": "Tesla Certified Battery Storage Installation", "url": "https://www.greentechrenewables.co.uk/battery-storage/tesla-powerwall-review" }, { "@context": "https://schema.org", "@type": "Product", "name": "Tesla Powerwall 3", "image": [ "https://www.greentechrenewables.co.uk/__l5e/assets-v1/612689d6-4383-4f8e-b0bd-d10a4d094dff/tesla-powerwall-home.png" ], "brand": { "@type": "Brand", "name": "Tesla" }, "description": "13.5kWh home battery with built-in 11.5kW hybrid inverter, installed by Greentech Renewables, a Tesla Certified Installer.", "aggregateRating": { "@type": "AggregateRating", "ratingValue": "4.9", "reviewCount": "120" }, "offers": { "@type": "Offer", "priceCurrency": "GBP", "price": "10500", "availability": "https://schema.org/InStock", "seller": { "@type": "LocalBusiness", "name": "Greentech Renewables Ltd" } } } ] --- [0333 577 7010 ](tel:03335777010)[admin@greentechrenewables.co.uk ](mailto:admin@greentechrenewables.co.uk) ★ 4.9 on Trustpilot [![Greentech Renewables - MCS Certified Solar Installers](/assets/greentech-logo-DICMm454.jpg)](/) [Home](/) Our Services Solar Energy [ Residential Solar Home solar panel systems ](/solar-panels)[ Commercial Solar Business & industrial solutions ](/commercial-solar)[ Price Estimator Get an instant quote ](/solar-estimator) Energy Storage [ Battery Storage Store excess solar energy ](/battery-storage) Heat Pumps [ Air Source Heat Pumps Efficient home heating ](/heat-pumps)[ Octopus Cosy Installer Accredited Cosy fitting in Manchester ](/octopus-cosy-heat-pump-installer-manchester)[ Boiler Upgrade Scheme £7,500–£9,000 government grant ](/boiler-upgrade-scheme-bus) EV Charging [ Home EV Chargers Charge at home ](/ev-charging)[ Commercial Charging Workplace solutions ](/ev-charging#commercial) Ready to switch to renewable energy? Get a free, no-obligation quote today [Quick Solar Price](/solar-estimator) Grant Schemes Free Solar Grants [ Grants Overview All available UK grants ](/grants)[ Warm Homes Plan £15bn government initiative ](/grants/warm-homes-plan)[ Low Income Solar Grants Free panels for qualifying homes ](/grants/low-income-solar-grants) Heat Pump Funding [ Boiler Upgrade Scheme £7,500–£9,000 heat pump grant ](/boiler-upgrade-scheme-bus)[ Check Eligibility See if you qualify ](/grants/warm-homes-plan-eligibility) Export Payments [ Smart Export Guarantee Get paid for surplus energy ](/grants/smart-export-guarantee)[ Best SEG Rates 2026 Compare export tariffs ](/grants/seg-best-rates) How to Apply [ Application Guide Step-by-step process ](/grants/warm-homes-local-grant-apply)[ Consumer Loan Scheme 0% finance from 2027 ](/grants/consumer-loan-scheme) Check if you qualify for free solar Income under £36k or on benefits? You may get free panels [Check Eligibility](/grants/warm-homes-plan-eligibility) [Case Studies](/case-studies) [0% Finance](/finance)[Quick Solar Price](/solar-estimator) Tesla Certified Installer # Tesla Powerwall 3 Store solar energy. Power your home 24/7. A 13.5kWh battery with built-in 11.5kW hybrid inverter, installed by a Tesla Certified team across Greater Manchester. Fully installed from £10,500 Incl. Backup Gateway · 0% VAT until 2027 [Get Tesla Quote](/free-quote)[Learn More](#specs) TESLA ✓ Approved ![Tesla Powerwall 3 mounted on the exterior wall of a UK home during a rainstorm, keeping the lights on](/__l5e/assets-v1/612689d6-4383-4f8e-b0bd-d10a4d094dff/tesla-powerwall-home.png) Capacity 13.5 kWh Inverter 11.5 kW Warranty 10 Years Backup Whole-home Fully installed from 0% VAT until 2027 £10,500 MCS Certified 4.9 Trustpilot Tesla Certified ## Tesla Powerwall 3 Specifications Total capacity 13.5kWh Continuous power output 11.5kW Inverter Built-in hybrid inverter (AC & DC coupling) Expandable Yes — stackable to 54kWh Warranty 10 years, 70% capacity retention guaranteed Operating temperature \-20°C to +50°C Weatherproofing Weatherproof, flood-resistant — suitable for outdoor mounting VAT 0% on residential battery storage until 31 March 2027 ## Tesla Powerwall 3 Price in the UK (Installed) A Tesla Powerwall 3 is around **£10,500 installed** in the UK for the standard 13.5kWh unit and Backup Gateway. Because the Powerwall 3 includes its own hybrid inverter, there's no separate inverter cost, unlike modular systems such as GivEnergy. Residential battery storage benefits from 0% VAT until 31 March 2027 — that saving is already reflected in installed pricing. Configuration Capacity Typical Installed Price Powerwall 3 + Backup Gateway 13.5kWh £10,500 Powerwall 3 + 1 Expansion Pack 27kWh From £15,500 Fully stacked (4 units) 54kWh From £26,000 ## Pros and Cons ### Pros - **Large single-unit capacity:** 13.5kWh in one box - **Built-in 11.5kW hybrid inverter:** no separate inverter needed - **Whole-home backup:** with the Tesla Backup Gateway - **Weatherproof outdoor mounting:** flood-resistant to IP-rated standard - **Premium brand appeal:** resale-friendly and instantly recognisable - **Stackable to 54kWh:** genuine large-home / off-grid potential ### Cons - **Higher upfront cost:** £10,500 vs £4,000 for a GivEnergy 5.2kWh - **Oversized for small homes:** 13.5kWh is more than most 3-bed households need - **Limited UK support footprint:** compared with UK-headquartered GivEnergy - **Only stackable with Tesla units:** no mixed-brand expansion ## Tesla Powerwall vs GivEnergy Feature Tesla Powerwall 3 GivEnergy 5.2kWh Capacity 13.5kWh 5.2kWh (expandable to 15.6kWh) Price (installed) £10,500 £4,000 Price per kWh £778 £769 Warranty 10 years (70% retention) 10 years (6,000 cycles) Inverter Built-in 11.5kW Separate GivEnergy hybrid Whole-home backup Yes (with Backup Gateway) Circuit-level EPS UK support Limited UK presence Newcastle-based **Verdict:** GivEnergy remains better value per kWh for most UK households — see our [GivEnergy review](/battery-storage/givenergy-review). Tesla Powerwall 3 is the stronger choice for large homes prioritising whole-home backup in a single premium unit. ## Installation and the Tesla Backup Gateway Powerwall 3 installation includes the Tesla Backup Gateway — the switching hardware that gives you whole-home protection during a grid outage rather than just powering selected circuits. Greentech's MCS-certified team typically completes a Powerwall 3 install in 1–2 days, including solar integration where required. - Indoor or outdoor mounting — Powerwall 3 is weatherproof and flood-resistant - DNO notification handled by Greentech under G99 as standard - Solar can be AC or DC coupled directly to the Powerwall 3 - Commissioned to the Tesla app for real-time monitoring ## Warranty and Support Tesla guarantees at least **70% capacity retention after 10 years** of use with no cycle cap for residential customers. As a Tesla Certified Installer, Greentech Renewables handles registration on your behalf and provides a first line of UK-based technical support alongside Tesla's warranty channel. ## Real-World Performance — Wilmslow Case Study An 11,000 kWh-per-year Wilmslow home paired 11.85kW of DMEGC solar with a Tesla Powerwall 3 and Backup Gateway. Annual electricity bills dropped from **£2,950 to under £400**, with a projected 5-year payback and whole-home resilience during outages. [Read the Wilmslow Case Study](/case-studies/11-85kw-tesla-powerwall-3-wilmslow) ## Frequently Asked Questions ### Is Greentech Renewables a Tesla Certified Installer? Yes. Greentech Renewables is a Tesla Certified Installer covering Greater Manchester and the North West, fitting the Tesla Powerwall 3 alongside its existing MCS-certified solar and battery storage services. ### How much does a Tesla Powerwall 3 cost installed in the UK? A Tesla Powerwall 3 typically costs around £10,500 installed in the UK, including the unit's built-in hybrid inverter and Backup Gateway. Residential battery storage qualifies for 0% VAT until 31 March 2027, which is reflected in installed pricing. ### How does the Tesla Powerwall 3 compare to GivEnergy? The Tesla Powerwall 3 has a larger single-unit capacity (13.5kWh vs GivEnergy's 5.2–9.5kWh range) and a built-in inverter, but costs more per kWh. GivEnergy is typically better value for most UK households; Tesla suits large homes wanting whole-home backup in one unit. ### Does the Tesla Powerwall 3 provide backup during power cuts? Yes. When installed with the Tesla Backup Gateway, the Powerwall 3 powers your whole home during a grid outage rather than just selected circuits. Greentech Renewables fits the Backup Gateway as standard with Powerwall installations where outage protection is required. ### How long is the Tesla Powerwall 3 warranty? Tesla Powerwall 3 carries a 10-year warranty guaranteeing at least 70% capacity retention at the end of the warranty period. ## Get a Tesla Powerwall 3 Quote Certified installation across Greater Manchester and the North West. [Get Your Free Quote](/free-quote) ## Accreditations ![Our Accreditations: HIES Consumer Code, TSI Approved Code, TrustMark Government Endorsed Quality, Green Deal Approved, MCS Certified, NAPIT](/assets/solar-accreditations-CbjEg9cO.png) Public Liability Insurance – Tradesman Saver £5,000,000 – GREE55TR01 Employers Liability Insurance – Tradesman Saver £10,000,000 – GREE55TR01 Professional Indemnity – Tradesman Saver £250,000 – GREE55TR01 [![Greentech Renewables - MCS Certified Solar Installers](/assets/greentech-logo-DICMm454.jpg)](/) MCS Certified solar panel and battery storage installers serving Greater Manchester and the UK. Trusted by 2000+ homeowners. [](https://facebook.com)[](https://instagram.com)[](https://linkedin.com) ### Services - [Solar Panels](/solar-panels) - [Battery Storage](/battery-storage) - [Commercial Solar](/commercial-solar) - [Heat Pumps](/heat-pumps) - [EV Chargers](/ev-chargers) - [Price Estimator](/solar-estimator) ### Company - [About Us](/about-us) - [Reviews](/reviews) - [Blog](/blog) - [Contact](/contact-us) ### Contact Us - [0333 577 7010](tel:03335777010) - [admin@greentechrenewables.co.uk](mailto:admin@greentechrenewables.co.uk) - Unit 14, Mandale Business Park, Greenside Way, Middleton, M24 1ZE Approved Partner: ![GivEnergy Approved Installer](/assets/givenergy-logo-Dok5luMw.png)![IWA Independent Warranty Association Approved](/assets/iwa-logo-B_-IBxNh.png)[Tesla Certified Installer](/battery-storage/tesla-powerwall-review)[HIES Brochure](/wp-content/uploads/2025/09/HIES-Brochure-2.pdf) ★ 4.9 Trustpilot Rating MCS Certified HIES Consumer Code Greentech Renewables Ltd is an Introducer Appointed Representative of Ideal Sales Solutions Ltd, t/a Ideal4Finance. Ideal Sales Solutions Ltd is a credit broker and not a lender (FRN 703401). Finance available subject to status. The rate offered is always provisional and will depend upon your personal circumstances, the loan amount and the term. © 2026 Greentech Renewables Ltd. All rights reserved. VAT Reg No. 404561815 — Company Reg No. 12902505. Registered in England & Wales. - [Privacy Policy](/privacy-policy) - [Terms & Conditions](/terms-and-conditions) - [Complaints Policy](/complaints-policy)