Introduction
As energy costs rise, solar battery storage has become a compelling upgrade for homes across South Wales—including Cardiff, Swansea, Newport, and Bristol. This guide explores current costs, potential savings, environmental benefits, and why pairing solar panels with batteries may be worth it.
Current Costs of Solar Battery Storage
- A typical 5 kWh lithium-ion home battery, fully installed, costs between £4,000 and £5,000. (Solar Battery Storage UK, Solar Together)
- Across the UK, prices range from under £2,000 to over £11,000, averaging around £5,000 for a 5 kWh home unit. (The Eco Experts)
Financial Incentives in the UK
- Solar systems with battery storage qualify for 0% VAT, saving roughly £200–£250 on an average setup. (EcoFlow UK)
- The Smart Export Guarantee (SEG) pays for surplus electricity fed back to the grid, offering £100–£200 per year. (EcoFlow UK)
- Eligible households may access government support schemes like ECO4, which can grant £1,000–£5,000 of assistance. (Homebuilding)
Savings & ROI
- Though batteries have a significant upfront cost, pairing them with solar helps you use more generated energy and reduce reliance on costly grid power.
- Typical annual savings from a solar + battery system land in the £100–£200 range just from SEG earnings. (EcoFlow UK, The Guardian)
- According to MoneySavingExpert, the additional return on battery-stored energy is around £130/year. (MoneySavingExpert)
Environmental and Grid Benefits
- Battery storage helps the UK move toward net-zero by balancing renewable generation and reducing peak demand. (Solar Energy UK)
- Storing and using energy locally avoids transmission losses and increases efficiency. (Wikipedia)
- Batteries support smart home features—charging EVs overnight, shifting energy usage to off-peak hours. (Energy Saving Trust)
A modern home with solar battery storage in a UK-style setting
Real-World Context
A recent study found that low-carbon homes—including solar plus battery storage—can save occupants around £1,341 annually, compared to homes using only heat pumps. (The Guardian)
Is It Worth It?
Solar batteries shine for:
- Home energy independence
- Lower energy bills over time
- Environmental responsibility
While upfront costs are high, paired with long-term savings, rising energy costs, and incentives, solar battery storage is becoming a smart long-term investment.
Why Solar Planet Makes It Easy
At Solar Planet, we connect you with up to 4 MCS-accredited battery installers in South Wales—quickly and for free. No obligation. Just expert quotes tailored to your needs.
Expert, local installers
All installations are carried out by careful, caring, qualified MCS-accredited engineers.
FAQs
How much can I save with a solar battery?
Depending on your usage and SEG rate, you could earn £100–£200/year and increase bill savings by a few hundred pounds more.
Is battery storage eligible for grants?
Yes—battery storage qualifies for 0% VAT and may be eligible for ECO4 or similar schemes.
How do batteries support net-zero efforts?
They help shift energy consumption, reduce fossil-fuel reliance at peak times, and improve energy efficiency. (Solar Choice, Homebuilding)
It’s as easy as...
Answer a few questions about your home or business
Receive up to 4 quotes from our trusted installers in your area
They install your new system in as little as 2 weeks
What our customers say
”I was thinking about getting solar for my home and stumbled upon www.solarplanet.uk. The site's super easy to get, breaking down all the solar jargon. After reading up for a bit, I filled out their quote form. The next day, I got calls and emails from three solar companies in South Wales. Chatted with all of them, got quotes, and went ahead with one. The whole experience was smooth, and all the companies seemed top-notch. Big thumbs up!
Caroline McleanCardiff Resident
”Running a business, those rising energy bills were starting to pinch. So, we thought, 'Why not try solar?' A quick online search led us to Solar Planet. Filling out their quote form was a breeze, and guess what! The very next day, three solar experts from Bristol gave us a shout. They were all super helpful and knew their stuff. Picking one was tough since they all had great offers. And a big relief! They all had this MCS accreditation – a real peace of mind with all those dodgy stories you hear these days.
Daniel JonesOn The Blink - Commercial Business in Bristol
”It couldn't have been easier! Initially, we were scratching our heads trying to find a trustworthy company. Then, thanks to a quick Google search by my husband, we landed on Solar Planet. He filled out their quote form, and the next day, three different solar installers rang us up. We've been over the moon with both the installation and the ongoing support. They guided us through the whole process from installation to helping us find the best energy provider for solar power.
Ceri BurkeSwansea Resident
