Store the energy your panels generate during the day and use it when prices peak. Compare battery sizes, costs and installers in one place.
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Tell us about your home and how you use energy, and we'll match you with vetted installers who can size a battery correctly for your property — no pressure, no sales calls you didn't ask for.
Get battery quotes nowA few quick questions about your energy usage and whether you already have solar panels.
We show you battery options sized to your usage, with clear pricing from trusted partners.
Review capacity, warranty length, cycle life and total cost side-by-side.
Your chosen installer confirms the design and installation date over the phone.
A solar battery stores the electricity your panels generate but that you don't use straight away. Instead of exporting it cheaply to the grid, you keep it and use it in the evening when grid electricity is at its most expensive.
Your battery sits between your panels and your home, charging when you're generating more than you use and discharging when you're not.
Battery pricing depends on usable capacity, brand and whether it's fitted alongside a new solar installation. These are typical installed prices from the partners we work with:
| Battery size | Installed cost | Best suited to |
|---|---|---|
| 5kWh | £2,500 – £4,000 | 1-2 people, lower evening usage |
| 10kWh | £4,000 – £6,000 | 3-4 people (most common) |
| 15kWh+ | £6,000 – £9,000 | Large homes, heat pumps or EV charging |
You don't always need the full amount up front. Three routes are worth considering:
The quickest route to payback, with no interest to erode your savings.
Several UK lenders offer reduced rates for battery and solar upgrades.
Most installers offer 3-10 year finance so you can start saving immediately.
For most households with panels, yes — a battery works in three main ways.
Without a battery you may only use 30-50% of what you generate. With one, that often rises above 80%.
Discharging at 4-7pm means you skip the most expensive hours of the day on a time-of-use tariff.
Even without solar, you can charge overnight at low off-peak rates and run your home on that power all day.
Payback varies considerably. The main factors are:
Most UK households see payback between eight and 12 years, with faster returns for homes on smart tariffs or with an EV.
With a Trustpilot score of 4.9/5, we're one of the UK's most trusted comparison services.
Every partner we work with must be fully certified and regulated, so your installation is safe and compliant.
We don't sell your data to third parties. We only connect you with the specific providers you choose.
Our goal is to help you find the right fit for your home and budget, not to push a specific brand.
We only work with MCS-certified installers who meet our standards for quality, aftercare and transparent pricing.
Sunsave offers battery-and-solar packages on a subscription model, removing the upfront cost barrier.
Best for: Homeowners who want monitoring and maintenance included.
Why we trust it: Long-term performance commitments and clear, jargon-free pricing.
Glow Green is one of the UK's largest home energy installers with strong national coverage.
Best for: A fast, streamlined retrofit onto existing panels.
Why we trust it: Flexible finance and consistently clear communication.
Heatable pairs a slick digital quoting platform with the accountability of a family-run business.
Best for: Nationwide reach with a personal feel.
Why we trust it: A very large volume of verified five-star reviews.
As with any home energy upgrade, it's worth weighing both sides before you commit.
Most retrofits are completed within a day and require no scaffolding.
Your installer confirms the best location — usually a garage, utility room or loft.
The battery is wall-mounted or floor-standing, close to your consumer unit.
The battery and inverter are wired in and protected with the correct isolators.
Your installer configures charge windows and connects the monitoring app.
You get your paperwork, warranty documents and DNO notification confirmation.
Most UK homes are, but a few things affect the design:
Most home batteries carry a 10-year warranty covering a set number of cycles or a guaranteed remaining capacity. In practice, many continue to work well beyond that, with a gradual reduction in usable capacity.
Pairing a battery with the right tariff is where the biggest savings appear. Suppliers now pay for exported energy through the Smart Export Guarantee, and some pay premium rates at peak times.
These guides might help.
