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Octopus Energy Launches Own Home Battery Range

The Nook line combines a plug-in 2kWh unit for renters with a stackable homeowner battery integrated with Octopus's smart tariffs to widen access to home energy storage across five European markets in 2027.

Overview

  • Octopus publicly unveiled the Octopus Nook range at its London Energy Tech Summit, presenting a 2kWh plug-in 'Cube' for renters and a larger wall-mounted homeowner unit that can be stacked for more capacity.
  • The Cube is designed to plug into a standard socket, be controlled via the Octopus app, and can be paired with additional units to raise storage to about 10.5kWh for flats and rented homes.
  • Octopus said the homeowner battery will be engineer-fitted, will work with solar panels and carries a 12-year warranty, but the company has not released retail prices for either product.
  • Reporting shows inconsistent capacity figures for the homeowner unit: company materials describe a 5kWh unit stackable to 30kWh while a company quote referenced a 10kWh unit stackable to three units, a discrepancy the company has not clarified.
  • Octopus positions the move as a way to boost bill savings by combining storage with its smart tariffs, builds on almost 26,000 solar and battery installs the company cites, and could broaden uptake of home storage for renters and homeowners across the UK, Germany, France, Italy and Spain next year.