Sigenergy SigenStor fitted in Hereford
SigenStor is a stacked system: the solar inverter and the battery modules sit in one column, and you add modules as you need them. With Sigenergy's gateway fitted it keeps the house running in a power cut. It is one of the systems we fit across Hereford and Herefordshire.
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Prices
| Job | Price |
|---|---|
| Sigenergy system, supplied and installed | priced after a free survey |
| Survey and the honest sums on whether it pays | free |
Domestic solar and battery installs are zero rated for VAT until 31 March 2027. The quote is fixed and in writing before anything goes on the roof. Full price list
The Sigenergy SigenStor at a glance
| What it is | Energy Controller (the solar inverter) with battery modules stacked on it, plus an optional EV DC charging module |
|---|---|
| Battery modules | BAT 6.0 (5.84kWh usable) or BAT 10.0 (8.76kWh usable). 1 to 6 modules per controller. |
| Battery type | Lithium iron phosphate, rated for 10,000 cycles, IP66 |
| Inverter sizes | Single phase, 3kW to 12kW |
| Power cuts | Backup with the Sigen Gateway fitted. Sigenergy quote no break in supply when the controller is sized above the house load. |
| EV charging | Optional DC charging module in the stack, or Sigenergy's AC wallbox |
| Warranty | 10 years on the battery and controller, to 60% of usable capacity or a set amount of throughput. Extendable to 15 years if bought within 12 months. |
| App | mySigen |
From Sigenergy's own published specifications, checked October 2026.
Who it suits
- Anyone who wants to start with one battery module and add more later.
- Rural homes that lose power: with the gateway it backs up the house.
- Drivers who want the EV charger in the same system.
Worth knowing
- Keep it online. If the system is offline for more than a year in total, Sigenergy cut the warranty to 5 years.
- The 10-year battery warranty is to 60% of capacity, so check that against other batteries you are quoted.
- Whether the backup covers the whole house or essential circuits is a design choice we make with you at the survey.
How we work, what moves the price and the paperwork are on our main solar panels page.
Other solar kit we fit
Questions we get asked
How big a Sigenergy battery do I need?
It depends on what you use in the evening. Modules come in 5.84kWh and 8.76kWh usable, and you can stack up to six, so we size it from your bills rather than guessing.
Will it keep my power on in a power cut?
Yes, with Sigenergy's gateway fitted. Without it, like any grid-connected solar system, it shuts down when the grid goes off.
Can I add more batteries later?
Yes. That is the point of the stacked design: up to six modules on one controller.
Thinking about a Sigenergy battery?
WhatsApp us a photo of your fuseboard and a recent electricity bill, and we will tell you whether it is worth a survey.