
Harness the sun
In the UK, the average household can save between 50-65% on electricity bills by switching to solar PV, depending on several factors such as system size, energy usage, and whether battery storage is included, although it's worth noting battery storage isn't required on every installation.
Typical UK Savings:
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A 4kW solar system (common for UK homes) can generate around 3,400-4,200 kWh per year.
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The average household uses about 2,900 kWh per year, meaning solar can cover a large portion of this demand.
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Without a battery, this could save around £400-£600 per year on electricity bills.
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With a battery, savings could reach as much as £800+ per year as more self-generated power is used.
Breakdown of Potential Savings:
✔ Without Battery Storage:
50-60% savings (by using solar energy during the day and exporting excess to the grid)
✔ With Battery Storage:
60-80% savings (by storing excess solar energy for night time use)
Additional Benefits:
✔ Smart Export Guarantee (SEG): Earn money by selling excess electricity back to the grid.
✔ Protection from Rising Energy Prices: Solar users avoid rising utility costs, which have surged in recent years.
✔ Long-Term Savings: Over 25 years, UK homeowners could save £10,000 - £20,000.


Would you like a more detailed estimate based on your location and energy usage?
Battery
Storage



Top Solar Battery Brands in the UK:
A Look at AlphaESS, Sunsynk, and Fox ESS
As solar adoption grows in the UK, homeowners are increasingly looking at solar battery storage to maximise their energy savings. With the ability to store excess solar power for use during peak hours or at night, a solar battery system can boost savings by up to 80% on electricity bills. Here’s a look at some of the leading solar battery brands in the UK, that we at EcoSheffield use primarily, including AlphaESS, Sunsynk and Fox ESS, and their top-performing models.
Sunsynk W-Series Batteries
Great for Flexibility & Compatibility
Sunsynk is a UK-favourite brand, known for affordable and high-performance solar batteries.Their W-Series Batteries work seamlessly with Sunsynk inverters, providing a cost-effective, flexible solution for home energy storage.
Key Features of Sunsynk W-Series Batteries:
✔ Expandable Capacity: Available in 5.32kWh and 9.6kWh, which can be stacked for larger energy storage needs.
✔ High Discharge Rate: Capable of 100% Depth of Discharge (DoD), meaning you can fully utilise the battery’s stored energy.
✔ Smart Battery Management System (BMS): Protects against overcharging and overheating, ensuring long-term reliability.
✔ Easy Installation: Designed for plug-and-play integration with Sunsynk inverters and other compatible systems.
Ideal for: Homeowners who already have Sunsynk inverters or are looking for a cost-effective yet powerful battery solution.
AlphaESS G3 Batteries
Trusted for Efficiency & Reliability
AlphaESS is a globally recognised energy storage provider known for delivering high-efficiency, long-lasting battery systems. Their batteries are widely used in the UK due to their advanced lithium-ion technology and high energy density.
Key Features of AlphaESS G3 Series:
✔ Scalable Storage: Available in different sizes, from 5.7kWh to 34.2kWh, allowing homeowners to expand their system as needed.
✔ Long Lifespan: Over 6,000 charge cycles, ensuring long-term performance.
✔ Smart Energy Management: Comes with AlphaCloud monitoring, allowing real-time tracking of energy usage.
✔ High Round-Trip Efficiency: Up to 97% energy efficiency, meaning minimal energy loss during charging and discharging.
Ideal for: Homeowners looking for a high-performance, expandable battery that integrates well with solar PV systems.
Fox ESS Cube Batteries
Modular & High-Capacity Storage
Fox ESS is a leading innovator in solar battery technology, offering high-efficiency, modular storage solutions that are perfect for homeowners with high energy demands. Their Cube Battery System is one of the most powerful options on the UK market.
Key Features of Fox ESS Cube Batteries:
✔ Massive Storage Potential: 10.4kWh to 41.6kWh, perfect for large households or energy-intensive homes.
✔ Scalable & Modular: Easily expandable by adding more battery modules.
✔ Reliable Lithium-Ion Phosphate (LiFePO4) Cells: Safer and longer-lasting than standard lithium-ion batteries.
✔ Fast Charging & High Efficiency: 90%+ round-trip efficiency, ensuring minimal energy loss.
Ideal for: Homes with high energy demands or those looking for a future-proof battery solution with large-scale energy storage.

Opening Hours
Mon - Thurs: 09:00 - 16:00
Friday: 09:00 - 13:00
Sat - Sun: CLOSED
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EcoSheff Ltd (T/A EcoSheffield)
Unit 3 Neepsend House, 1 Percy Street, Sheffield, South Yorkshire, S3 8BT