Sigenergy is one of the newest entrants to the UK home-energy market (launched 2023) and has rapidly gained traction with high-end new-build and self-build projects. The all-in-one cabinet design appeals to architects and house-builders who don't want wall-mounted boxes scattered around plant rooms or garages.
The 5-48kWh battery scalability matches almost any home — small bungalows to large detached, single-phase or three-phase. The integrated EV charger socket means one cabinet handles solar, storage and vehicle charging without separate units.
Price-wise, Sigenergy sits at the premium end — typically 15-25% above an equivalent capacity Fox-ESS + EV charger combination. Worth it for visual integration and single-warranty simplicity; less compelling on a pure cost-per-kWh basis.
Pricing
10kWh combined system installed from £15,500. Larger 20-30kWh from £21,500.
Best for
New-build, self-build, premium retrofit, customers prioritising clean aesthetic and single-unit simplicity.