Northamptonshire · July 2025

Northamptonshire: 9.4kWp solar with a 20kWh SigenStor

We fitted 20 all-black solar panels and a 20kWh battery to a new-build home in Northamptonshire.

Solar array
9.4kWp
Battery storage
20kWh
Panels
20

About the installation.

This new-build home stores up to 20kWh of solar power to use in the evening.

We fitted:

  • 20 all-black solar panels, giving a 9.4kWp array
  • a Sigenergy SigenStor battery with 2 battery modules, storing 20kWh
  • a 12kW SigenStor energy controller

The battery sits in the garage. The household can add more battery modules later if they need more storage.

The system

  • BatterySigenergy SigenStor, two 10kWh battery modules
  • InverterSigenStor energy controller, 12kW single-phase
  • LocationNorthamptonshire
  • InstalledJuly 2025

Figures from the system design. Estimated generation is the modelled first-year output.

Photographs

On the day.

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