By storing excess energy for use later in the day or during peak-rate periods, a battery system helps you reduce your reliance on the grid and get even greater savings.
At Natural Generation, we supply and install a range of high-quality solar batteries across Cornwall and the South West. In this guide, we’ll walk you through some of the most popular battery brands on the market: BYD, GivEnergy, MyEnergi, Fronius, Huawei and Tesla.
Why Add a Battery to Your Solar System?
Solar panels generate electricity during daylight hours; but unless you're using all that energy right away, it often goes unused in your home or business, and is exported to the grid.
A solar battery stores that surplus electricity so you can use it later, when the sun’s gone down or when electricity prices are higher. Some smart batteries even let you charge from the grid during off-peak hours, adding even more flexibility to your energy use.
Top Solar Battery Brands We Recommend:
1. GivEnergy
A popular British brand, GivEnergy offers a highly flexible and cost-effective solution for homeowners. Features include:
- Modular design (starting from 2.6 kWh and scalable)
- Easy-to-use app for monitoring and control
- Full UK-based support and service
- Compatible with time-of-use tariffs
It’s a great option for those looking to make the most of smart energy tariffs.
2. BYD Battery-Box
BYD is one of the largest battery manufacturers globally. Their Battery-Box range is known for:
- Robust lithium iron phosphate (LFP) technology
- Scalable systems up to 66 kWh
- High efficiency and long lifespan
- Compatibility with leading inverters
Ideal for both residential and commercial setups.
3. Fronius
Known for its high-quality inverters, the Fronius Reserva solar battery system offers a reliable home energy storage solution. Key benefits include:
- Full integration with Fronius inverters and solar PV systems
- Smart energy management via the Fronius Solar.web platform
- Scalable storage using BYD Battery-Box
- Backup power capabilities when combined with Fronius Gen24 Plus
An excellent choice for homeowners wanting a proven, integrated system from a trusted European brand.
4. Huawei
Huawei brings its tech expertise to solar storage with the super-reliable Luna2000 battery system. Its standout features are:
- Modular, stackable design (5 kWh modules, up to 30 kWh)
- 15 year guarantee
- Sleek, modern design with smart app integration
- High safety standards with advanced lithium iron phosphate cells
A strong contender for tech-savvy homeowners looking for flexible storage with premium features.
5. Eleven Energy
Eleven’s sodium-ion battery system is a cutting-edge alternative to lithium, offering a cleaner, more sustainable way to store energy. It features:
- Modular storage starting from 4.5 kWh
- Made with sodium, avoiding less sustainable materials like lithium or cobalt
- Wide operating temperature range from -20°C to +55°C
- Designed to be eco-friendly, reliable and affordable
An ideal choice for environmentally minded households and businesses looking for next-generation energy storage with a low-impact footprint - find out more here.
6. Sigenergy SigenStor
The Sigenergy SigenStor is an AI-optimised, fully integrated 5-in-one energy storage system designed for both homes and businesses. It combines a solar inverter, EV DC charger, battery PCS, battery pack, and energy management system in one sleek unit. Key features include:
- Modular and stackable design, scalable from residential to commercial needs
- 314 Ah large-capacity battery cells with 5-layer safety protection and IP66 rating
- EV-ready with bi-directional charging (V2H and V2G capabilities)
- Fast installation (stackable modules connect in minutes)
- AI-powered energy management for maximum efficiency and savings
A future-ready choice for anyone seeking true energy independence, resilience, and seamless integration of solar, storage, and EV charging.
7. Tesla Powerwall
The Tesla Powerwall is one of the most recognisable names in home energy storage, and for good reason. It offers:
- 13.5 kWh of usable storage
- Seamless integration with solar PV
- Backup power in the event of an outage
- Remote monitoring via the Tesla app
It’s a sleek, powerful option that suits most medium to large households.
Which Solar Battery Is Right for You?
The best solar battery for your home depends on your:
- Energy usage habits
- Solar panel system size
- Budget and long-term goals
- Interest in smart tariffs and backup power
To help you choose the best solar battery, our team here at Natural Generation will assess your needs and recommend the most suitable battery solution for your property, whether you're in Cornwall, Devon, or beyond.
Get Expert Advice and a Free Battery Quote
Solar battery technology has come a long way, and the savings potential is greater than ever. If you want to store more of your own clean energy, reduce grid dependency, and maximise your return on investment, now’s the time to act.
Contact Natural Generation for a free solar battery quote today
We’ll guide you through your options, explain the differences between leading brands, and help you take full control of your energy future.
