Tesla Powerwall Installers Dorset: Certified Powerwall 3 Installs

These are our advertised "from" prices, and every figure is subject to survey. A Powerwall 3 on its own is £7,450 for 13.5kWh of usable storage, or £13,950 if you add the expansion unit to reach 27kWh. With new solar, our Premium package pairs the Powerwall 3 and its Gateway with AIKO 475W all-black panels: £12,920 with 12 panels, £13,240 with 14 and £13,560 with 16. A £375 Tesla rebate is available on the Premium package, and bird protection mesh is included as standard.

If you want the full picture across our battery range first, including where a Powerwall is the wrong choice, read our Tesla Powerwall 3 review or the comparison of Fox ESS, GivEnergy and Tesla batteries. If you already have panels and only want storage, start with our guide to battery storage without solar panels.

A battery makes money by moving electricity from a cheap time to a dear one, so the tariff matters as much as the hardware. Octopus Outgoing Fixed pays 12p for every kWh you export (it was cut from 15p on 1 March 2026), so exporting your midday surplus is worth less than using it yourself in the evening. Flux is the other route. It pays nearly three times the day rate between 4pm and 7pm, so a battery that holds charge for that window earns far more than panels exporting at lunchtime.

Count each kWh of battery capacity once. A 13.5kWh Powerwall can shift about that much energy a day, whether it comes from your panels or from cheap overnight import. It cannot do both jobs with the same capacity, so be wary of a savings quote that adds solar shifting and tariff trading together as if the battery were twice the size. We model your real usage at the survey and show you which approach suits your home.

Christchurch and the Bournemouth and Poole conurbation are our regular Dorset route, and most surveys there can be booked within our normal schedule. Wimborne sits just beyond Poole on the same run. Dorchester and Weymouth are the furthest towns we cover, so we plan those visits as dedicated west-Dorset trips. The survey, install and any aftercare visit still come from the same team. Beyond Weymouth, check Tesla's installer locator for a certified installer closer to you.

For solar-only questions in the county, including Solar Together and how its offers compare with a local quote, see our Dorset solar panel installation page.

Many of the homes we survey in Dorset sit close to the sea or in protected streets, and both affect where the kit goes. On salt-exposed seafront properties we specify corrosion-resistant fixings for the panels. In a conservation area or a listed building, we agree the battery and Gateway location with you at the survey. That can mean a garage, an outbuilding or a less visible wall rather than the front of the house. A listed building, such as many in Christchurch's historic core, needs that conversation before any design is drawn.