The all-in-one home energy stack
The SigenStor combines a solar inverter, modular battery, EV charging and whole-home backup in a single, beautifully engineered stack. Scale from 6 kWh to 54 kWh. ALPS is a certified Sigenergy installer for the North East.
Get a Free Quote 01642 790 489
Who installs the Sigenergy SigenStor in the North East, and what does it cost?
ALPS Electrical installs and commissions the Sigenergy SigenStor across Teesside, County Durham and North Yorkshire. We were an early adopter of the Sigenergy SigenStor in the North East and feature two complete SigenStor installs on our YouTube channel. The SigenStor is an all-in-one stack — solar inverter, modular battery, integrated EV charging and whole-home backup in a single unit. As a guide, a full solar-and-battery SigenStor system is typically £10,000–£13,500 installed with 0% VAT; storage-only or retrofit configurations cost less. Every quote is fixed and confirmed at survey.
The Sigenergy SigenStor is an all-in-one home energy system — a solar inverter, a modular battery, optional integrated EV charging and whole-home backup in a single stacked unit, managed by one controller and the mySigen app. It is modular, so you start with the capacity you need and add 6 and 9 kWh battery modules as your usage grows, and it supports single- and three-phase supplies natively.
The Sigenergy SigenStor is an all-in-one home energy system — a solar inverter, a modular battery, optional integrated EV charging and whole-home backup in a single stacked unit, managed by one controller and the mySigen app. It is modular, so you start with the capacity you need and add 6 and 9 kWh battery modules as your usage grows, and it supports single- and three-phase supplies natively.
Figures are indicative of the Sigenergy SigenStor product range and depend on the exact configuration specified for your home. Confirmed at survey.
Modular Battery — Start Right, Grow Later
The SigenStor battery is built from stackable modules (typically 6 kWh and 9 kWh), so a single stack can scale from around 6 kWh up to roughly 54 kWh. You buy the capacity that matches your usage now and expand later without replacing the inverter or starting again. For a household that expects to add an EV or a heat pump in the next few years, that headroom is worth having.
Integrated EV Charging
The SigenStor supports integrated EV charging through an optional DC module (rated 12.5 kW or 25 kW) that draws directly from your solar and battery for faster charging with fewer conversion losses, and Sigenergy also offer a separate AC EV charger (around 7–22 kW). Whether either earns its place depends on your car, your driving and your budget; we will talk it through honestly at survey and only specify it if it earns its place.
Whole-Home Backup and Smart Energy Management
With the Sigen Gateway, the SigenStor can provide whole-home backup on both single- and three-phase supplies, switching over near-instantly when the grid drops so your home keeps running. The mySigen app gives you near-real-time visibility of solar generation, home use, battery level and grid flow, and the system works with time-of-use tariffs such as Octopus Agile, Flux and Go to charge when electricity is cheapest and discharge when it is dear.
Both are premium, whole-home systems, and we install both — so we can be straight about the trade-offs. The Powerwall 3 is a superbly polished, fixed-capacity unit with a first-class app. The SigenStor is more configurable: modular capacity, native three-phase, and optional DC EV charging. Which one is right depends on your home, not on which brand we would rather sell.
| Feature | Tesla Powerwall 3 | Sigenergy SigenStor |
|---|---|---|
| Storage capacity | 13.5 kWh (fixed, stack units) | ~6–54 kWh (modular) |
| Inverter | Built-in, up to ~11 kW | 3–25 kW (1φ & 3φ) |
| Three-phase | Single-phase only | Native |
| Integrated EV charging | Via separate charger | Optional integrated DC module |
| Whole-home backup | Full | Full |
| App | Tesla app | mySigen |
We are a family-run business based in Yarm, Teesside, with over 500 outstanding customer reviews across Google and Checkatrade. We are one of the most highly rated solar installers in the North East, and we have earned that reputation through consistent quality, transparent pricing, and exceptional aftercare.
Every installation is carried out by our own experienced team, never subcontracted. We document many of our installations on our YouTube channel, giving you full transparency into our workmanship and the systems we install. We provide genuine aftercare support, answering questions and helping with monitoring long after your installation is complete.
Whether you are considering a small 4kW system for a terraced house or a large 10kW+ system with battery storage for a detached property, we design every system to maximise your return on investment. Get in touch today for a free, no-obligation quote and discover how much you could save with solar panels from ALPS Electrical.
Get a free, no-obligation quote from an award-winning sustainability experts. MCS certified, 500+ outstanding reviews, 10/10 rated.
Choose Once. Choose ALPS!
