Brands
Quick answer
Choosing a home battery brand:
Figures: Tesla, Sigenergy, EcoFlow and Fox ESS published specs; EcoFlow published warranty; Energy Saving Trust battery storage advice, updated 19 August 2026; HMRC VAT Notice 708/6.
Every system HCE fits is built around equipment we can stand behind and explain in plain English. This page compares five product lines: EnSmart is the line you will see in HCE's own installs, and Sigenergy, Tesla Powerwall, EcoFlow and Fox ESS are explained using their makers' own published figures. We will tell you plainly which one suits your house, your usage and your plans, and if the system you want is one of the others, ask us and we will confirm in writing how it would be supplied, who installs and commissions it, and what warranty attaches. No pressure, just clear advice.
A UK-based power-conversion and energy-storage manufacturer whose SolarAll hybrid inverter range pairs solar input, battery storage and system management in one cabinet. You will see EnSmart SolarAll equipment throughout our own installation photography.
Read about EnSmartThe SigenStor is a modular "5-in-One" energy storage system: hybrid solar inverter, battery modules, an optional DC EV-charging module and energy management stacked into a single slim tower. Battery modules of 6.02 kWh or 9.04 kWh stack to suit your home, so the system can grow when you need it to.
Read about SigenergyThe Powerwall 3 stores 13.5 kWh in a single unit with a solar inverter built in, and Tesla's published UK warranty guarantees 80% of that capacity at ten years with unlimited cycles. For many households one unit covers the evening entirely.
Read about Tesla PowerwallThe PowerOcean home battery builds up in 5 kWh packs behind a published 15-year warranty — the longest of the five lines compared here. It is a strong fit if you want to start small and add capacity later.
Read about EcoFlowModular EP-series batteries from a single 5.18 kWh wall unit up to a published 41.6 kWh, paired with Fox ESS's own hybrid inverters — and backed by a UK national service centre in Coventry. Fox ESS reports that S&P Global Energy's market tracker ranked it the UK's No. 1 residential storage provider for 2025 by shipments.
Read about Fox ESSWhich brand is right depends on your consumption, whether you have or want an EV, your available space and how your usage might change. At your free survey we model the options side by side and give you an itemised quote for the system that fits, naming who supplies, installs and commissions it — and if a smaller system serves you better, we will say so. Get a free quote, or explore battery storage and EV chargers first.
By region
EnSmart is the system in our own job photos; the other pages compare each brand for homes in that region.
Surrey
Sussex
Hampshire
Berkshire
South West London
North London
Hertfordshire
Essex
Bedfordshire
Tell us roughly what you use and what you are hoping the system will do. We will model the options side by side at your free survey and give you an itemised quote that names who supplies, installs and commissions the system — and if a smaller system serves you better, we will say so.
Or read up on battery storage and EV chargers first.
