Battery Storage
Installation in South Wales
Store cheap electricity, use your solar power after dark, and protect yourself from rising energy costs. Battery storage is the smartest upgrade you can make to your home energy system — with or without solar panels.
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Why Battery Storage?
Whether you have solar panels or not, a home battery system can transform the way you use and pay for electricity.
Use Solar Power After Dark
Without a battery, your solar panels only benefit you during the day. A battery stores excess generation so you can use free solar electricity in the evening when you need it most.
Slash Bills with Smart Tariffs
Charge your battery when electricity is cheapest (as low as 7p/kWh on Octopus Agile) and use it when prices peak. Some customers save over £1,000 a year with smart tariff arbitrage alone.
Blackout Protection
When the grid goes down, your lights stay on. Many modern battery systems provide seamless backup power, keeping your essentials running during power cuts.
Maximise Your Investment
If you already have solar, a battery can increase your self-consumption from around 30% to over 80%. That means far less electricity bought from the grid and faster payback.
Solar + Battery: The Perfect Partnership
Solar panels generate most of their power during the middle of the day — but that's when most families are out. Without a battery, that surplus goes back to the grid for just a few pence per kWh.
With a battery, you capture every kilowatt-hour your panels produce and use it when electricity is most expensive. The result? Dramatically lower bills and near-complete energy independence.
Our systems are intelligent. They learn your usage patterns, monitor weather forecasts, and automatically optimise when to charge, discharge, and export — so you always get the best value from your energy.
Battery-Only Systems — No Solar Required
You don't need solar panels to benefit from battery storage. A standalone battery system lets you take advantage of time-of-use tariffs like Octopus Agile, Intelligent Octopus Go, or Octopus Flux.
Here's how it works: your battery charges overnight when electricity costs as little as 7p per kWh, then powers your home during peak hours when prices can reach 30p–40p or more. The savings are substantial and immediate.
This approach is becoming increasingly popular, and for good reason. As the gap between peak and off-peak electricity prices widens, battery storage becomes more valuable every year — even without a single solar panel on your roof.
"Fantastic company! Recommended to me by my neighbour. I have had battery storage and additional solar panels installed. Richard and his team offer so much support. Blue Electrics helped me with obtaining additional information to get the very best of how my original panels are performing."
Battery Systems We Install
We partner with the industry's most trusted manufacturers to give you reliable, high-performance battery storage.
SigEnergy
All-in-one hybrid inverter with integrated battery and optional EV charger. Modular, scalable, and incredibly smart — SigEnergy is our go-to recommendation for new installations.
Tesla Powerwall
The world's best-known home battery. 13.5kWh capacity, seamless backup, and the Tesla app for complete control. Proven, reliable, and aesthetically stunning.
EcoFlow
Versatile home battery solutions with rapid installation and intuitive app control. EcoFlow systems are stackable, expandable, and perfect for homes that want flexibility.
Fogstar
UK-based LiFePO4 battery packs with honest specifications and serious usable capacity. A strong-value choice for larger systems and Sunsynk-based installs, backed by proper UK support.
Smart Tariff Integration
The real magic of battery storage happens when you pair it with a smart electricity tariff. We'll help you choose the right tariff and configure your system to maximise savings automatically.
Octopus Agile gives you half-hourly pricing that follows wholesale rates — charge your battery when prices drop (sometimes even going negative!) and discharge when they peak.
Intelligent Octopus Go offers rock-bottom overnight rates for EV and battery charging, making it ideal if you have both an electric vehicle and a home battery.
We don't just install the hardware — we help you set up the software, configure the automations, and optimise your system so it works harder for you from day one. It's part of the Blue Electrics difference.
Explore Your Options
Not sure which battery setup is right for you? Our detailed guides will help you decide.
Is Battery Storage Right for You?
A straightforward guide to help you decide if battery storage makes financial sense for your home.
Battery-Only Systems
How battery storage works without solar — and why it's still a brilliant investment.
Add Batteries to Existing Solar
Already got solar panels? Find out how adding a battery can supercharge your savings.