Wales ยท National Grid Electricity Distribution
Home battery installers in Cardiff

A 4 kWp roof here is modelled at 980 kWh per installed kilowatt, about 3,920 kWh a year before shade.
The long local note is home battery installation in Cardiff. Firms below publish battery work. Coverage still has to be confirmed for the postcode.
Solar4Good
Publishes nationwide UK solar and battery installation, with area pages across Britain
Public pages describe MCS-certified solar and battery installation for homes and businesses across the UK. Confirm the certificate and that they cover your postcode.
MakeMyHouseGreen
Publishes nationwide solar installation and battery options
Public site offers solar installation nationwide and discusses battery storage. Treat coverage as something to confirm for your postcode, not as a promise from this page.
Heatable
National installer publishing boiler, solar and battery work
Public pages present Heatable as an installer of boilers, solar and batteries. Ask which crew would survey a battery, and whether the job is MCS certified.
BOXT
National online installer with a published solar and battery offer
Public site includes solar and battery among home energy installs. Compare the written scope with a specialist quote before you treat a package price as the design.
Green Building Renewables
Describes a nationwide network for home solar and storage
Public pages describe a nationwide home-energy network including solar and battery equipment. Ask which local firm would actually attend, and whose warranty you get.
Sunsave
UK solar subscription that publishes battery-inclusive systems
Sunsave publishes a subscription route to solar, and battery storage appears in its public material. A subscription is not the same contract as buying the kit. Read the exit terms.
Octopus Energy
Supplier with a published solar and battery installation page
Octopus publishes solar and battery installation. The supply tariff and the installation contract are still separate decisions. Confirm who employs the electrician.
EDF
Supplier publishing home solar panels and batteries
EDF's public solar pages include a battery with the panels, installed by Contact Solar. Check whether the installation is available at your address and who carries MCS certification.
Spirit Energy
Solar PV and battery installer with a strong commercial and community brief
Public pages cover solar PV and batteries, including commercial, community and landlord work. Ask plainly if they install on ordinary houses in your postcode.
Joju Solar
UK commercial and public-sector solar, storage and EV charging
Joju publishes commercial and community renewable work, including storage and EV charging, across the UK. Use them as a commercial comparator, and confirm domestic availability separately.
Lumos Energy
Wiltshire and the South West
Public pages describe MCS, NICEIC and RECC solar and battery installation for homes in Wiltshire and the South West.
Naked Solar
South West England
South West solar installer whose public site discusses batteries as part of home systems. Confirm the battery brands they are actually commissioning this year.
