Can Octopus Energy Customers Get a Free Home Battery?

Octopus Energy and home battery storage

Checked 30 September 2026. Tariffs and products change — check with Octopus Energy before deciding.

Octopus is unusual among UK suppliers because batteries sit at the centre of several of its products. It supplies electricity, installs solar and batteries itself, runs tariffs designed specifically for battery owners and, in June 2026, announced its own battery range, Nook, which it says will launch in the UK in 2027.

• Nook Cube — a 2kWh plug-in battery, expandable, aimed at renters and flats.
• Nook Colossus — a wall-mounted, engineer-installed battery in 5kWh or 10kWh units.

Octopus hasn’t published Nook prices yet, and neither product is on sale at the time of writing.

Octopus tariffs built around batteries

Checked 30 September 2026. Tariffs and products change — check with Octopus Energy before deciding.

Octopus has two tariffs aimed squarely at homes with solar and a battery:

• Flux — a combined import and export tariff with a cheap overnight window (02:00–05:00) and a higher-priced peak (16:00–19:00). It needs solar panels, a battery, a half-hourly smart meter and an export meter. Your system can come from any installer.
• Intelligent Octopus Flux — Octopus controls the battery automatically, charging when electricity is cheap or green and exporting at the peak. At the time of checking it was only available for solar-and-battery systems bought from Octopus.

Its other smart tariffs — Agile (half-hourly prices linked to wholesale), Tracker, Go and Intelligent Octopus Go (cheap overnight windows for EV drivers) — are all time-of-use tariffs, which is exactly the kind of pricing a battery can take advantage of. Read how tariffs affect what a battery can save.

Exporting and Saving Sessions

Checked 30 September 2026. Tariffs and products change — check with Octopus Energy before deciding.

Octopus’s Outgoing export tariffs include a flat rate, a Prime version paying more between 4pm and 7pm, and an Agile Outgoing tariff that follows half-hourly prices. Battery owners can time exports to the higher-priced periods.

Octopus also runs Saving Sessions for Octoplus members — “Power Down” events that reward using less at peak times, and “Power Up” events for using more when there’s surplus renewable electricity. A battery can make both easier without changing how you live.

Were you with Bulb, Shell Energy or Co-op Energy?

Checked 30 September 2026. Tariffs and products change — check with Octopus Energy before deciding.

Octopus took on Bulb’s customers (completed in 2023) and Shell Energy’s customers (completed in March 2024), and has supplied Co-op Energy customers since 2019. If you were with any of these, Octopus’s tariffs are the ones that now apply to you.