Bill savings
Most homeowners cut electricity bills by 50-70% in the first year. As grid prices go up, your savings get bigger because your solar costs nothing to run.
Solar Battery Storage System
A complete solar and battery system for your home
Solar panels make the electricity. A home battery stores the surplus so you keep running on solar after dark. Most households cut bills by 50-70% in the first year, with a payback window of 7-10 years.
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Why Solar?
How do solar panels save you money?
Your roof generates electricity that the house uses first, before importing anything from the grid. The battery stores what's left for the evening peak, when grid prices are highest, so your bill typically falls by half in year one.
With Smart Export Guarantee payments, you also get paid for any solar your home doesn't use, with the credit landing on your energy bill. On winter days when the sun does less work, the same battery fills up overnight from cheap off-peak electricity, ready for the morning.
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Your roof generates electricity
High-efficiency N-type panels turn daylight into electricity your home uses first, before you buy a unit from the grid.
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Use it in the evening too
A home battery stores what your panels make during the day. Cook dinner, run the TV, charge your phone, all on solar.
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Bills drop fast
Most homeowners see electricity costs fall 50-70% in the first year. After 6-10 years the system has paid for itself.
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Long-life warranties
Our panels carry up to a 25-year product warranty and up to a 30-year performance guarantee. That's decades of free electricity.
The Technology
How does a solar and battery system work?
Panels on your roof make electricity. An inverter makes it usable. A battery keeps the surplus for later.
Panels make electricity from daylight
We fit modern N-type panels from established manufacturers. They're more efficient than older panel types, hold up better over time, and still produce well on cloudy days. Standard panels are rated at 450W, with upgrade options up to 475W depending on the specification you pick.
Your home uses it first
The electricity goes straight to your appliances. While the sun's up, your lights, heating, hot water and EV charger all run on what your panels produce.
The battery keeps the rest
Whatever your home doesn't use during the day goes into the battery. By evening, you're still running on solar instead of buying from the grid.
Your Options
What system sizes and batteries are available?
We install systems from 6 panels, with optional battery storage. Already have solar? We fit batteries on their own too.
Battery storage options
FOX ESS 6 kWh battery Scalable to23.04 kWh ChemistryLFP (LiFePO₄) Depth of discharge90% Round-trip efficiency≥95% MountingFloor, wall & outdoor ProtectionIP65 Fire protectionBuilt-in CoolingSilent natural convection Dimensions38 × 64 × 18.5 cm
Enough for a typical evening. Covers lights, cooking, appliances, and hot water for most households.
FOX ESS 12 kWh battery Scalable to46.08 kWh ChemistryLFP (LiFePO₄) Depth of discharge90% Round-trip efficiency≥95% MountingFloor, wall & outdoor ProtectionIP65 Fire protectionBuilt-in CoolingSilent natural convection Dimensions71 × 64 × 18.5 cm
Better for bigger homes, or if you've got an EV or heat pump drawing power in the evening.
Tesla Powerwall 3 - 13.5 kWh ScalableWith expansion units Solar inverterBuilt-in AC output11.04 kW continuous Depth of discharge100% ProtectionIP67 MountingIndoor & outdoor BackupAutomatic outage detection MonitoringTesla App Warranty10 years Dimensions110.5 × 60.9 × 19.3 cm
Tesla's own battery. Smart energy management, power-outage backup, and a polished monitoring system to go with it.
FOX ESS 18 kWh battery Configuration3× FOX ESS 6 kWh Total capacity18 kWh ChemistryLFP (LiFePO₄) Depth of discharge90% Round-trip efficiency≥95% MountingFloor, wall & outdoor ProtectionIP65 Fire protectionBuilt-in CoolingSilent natural convection
Three FOX ESS 6 kWh units working together. Built for large homes, EV charging, or households that want to run almost entirely on stored solar.
Tesla Powerwall 3 - 27 kWh Configuration2× Tesla Powerwall 3 Total capacity27 kWh AC output22.08 kW continuous Depth of discharge100% ProtectionIP67 MountingIndoor & outdoor BackupWhole-home, automatic MonitoringTesla App Warranty10 years
Two Powerwall 3 units paired for serious capacity. Whole-home backup, EV charging, and enough headroom for the largest homes to run on stored solar overnight.
System specifications
- FOX ESS 6 kWh
- FOX ESS 12 kWh
- Tesla Powerwall 3 (13.5 kWh)
- FOX ESS 18 kWh
- Tesla Powerwall 3 (27 kWh)
How It Works
How does the installation work?
We handle the whole thing. Most systems are fitted in 1-2 days.
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Answer a few quick questions
Tell us about your property. Takes a couple of minutes and you don't need anyone to visit.
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Get a fixed price
You'll get an all-in price straight away. Nothing hidden, no obligation.
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We install everything
Our MCS-certified engineers handle the full installation, including setup, electrics, commissioning, and MCS registration.
Get your free solar quote
Takes a few minutes. No obligation.
Costs & Savings
How much do solar panels cost, and what will you save?
Complete solar and battery systems in the UK start from under five thousand pounds. Your exact price depends on your electricity usage, the number of panels, your roof layout, and the battery size you choose.
SEG income
Export surplus electricity to the grid and earn income through the Smart Export Guarantee. Rates vary by supplier.
0% VAT on batteries
Home battery installations currently qualify for 0% VAT. The deadline is March 2027, so worth factoring in if you're deciding about a battery.
Your price depends on your electricity usage, roof size and orientation, local sunlight levels, and whether you add battery storage. We factor all of this into a personalised estimate so you can see projected savings before you commit. Get a quote for your property and you'll have a full breakdown in a few minutes.
Flexible finance
0% interest-free credit on your battery storage
Get your battery storage installed with no deposit and pay it off over 36 months at 0%. Solar panels and the wider system can be financed alongside it from 9.9%APR Representative over up to 15 years. Subject to status and affordability.
How finance works
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Get your quote
See the price up front, with no obligation.
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Pick your term
Choose how long you want to spread the cost.
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Apply online
Complete the form in a few minutes. Most people get a decision the same day.
Final terms are confirmed in your formal quote.
0% interest on battery
36 monthly payments, with the total matching the cash price.
No deposit required
Get installed first, pay monthly. Optional deposit lowers payments.
FCA-regulated
Clear terms, fixed repayments, no hidden fees.
Common Questions
Solar panel and battery FAQ
Straight answers on solar panels, battery storage, pricing, and installation.
How much do solar panels cost in the UK?
A typical residential solar panel system costs between £5,000 and £12,000, depending on system size, roof layout, and whether you add battery storage. UKEM installs systems from 6 panels (2.67 kW), with larger systems available where suitable. Get a fixed, personalised price through our online quote tool.
Do solar panels work in the UK climate?
Yes. Solar panels generate electricity from daylight, not direct sunshine, so they still perform on cloudy days. You'll generate more in summer and less in winter, but the annual output is usually strong enough to deliver meaningful savings for UK homes.
Do I need planning permission for solar panels?
Usually no. Most domestic rooftop systems are covered by permitted development rights. Exceptions include listed buildings, conservation areas, and some flat-roof setups where panels project above limits. We check this during your survey before installation is booked.
Is it worth getting battery storage with solar panels?
For many homes, yes. Battery storage lets you use more of the electricity your panels generate, especially in the evening when tariffs are higher. That usually increases bill savings and reduces grid reliance. It's often most worthwhile for households out during the day.
What size battery do I need, and how long will it last?
Most homes suit a 5 kWh to 15 kWh battery, sized to how much electricity you actually use rather than a one-size-fits-all rule. A 10 kWh battery typically covers an average household's evening use for around 6 to 12 hours, with electric ovens, immersion heaters, or EV charging shortening that. We size around your daily consumption, whether you want backup power, and any future heat pump or EV plans.
What is the best battery storage for solar system UK?
There is no single best battery for every home. In the UK, the best option is the one that matches your usage, budget, and space. We commonly install FOX ESS and Tesla Powerwall systems and recommend based on capacity, efficiency, warranty, and smart controls.
Can I add battery storage to my existing solar panels?
Yes. We fit batteries to existing solar systems, including ones we didn't install. We'll ask a few questions about your current setup, then quote a battery sized to how you actually use electricity. The same options apply: FOX ESS from 6 kWh upwards, or Tesla Powerwall 3 from 13.5 kWh.
How long does solar panel installation take?
Most standard solar installations are completed within around one week. Larger systems or complex roof layouts can take longer. We handle scaffolding, electrical work, commissioning, and MCS paperwork so the process stays straightforward for you.
Can I get a solar and battery system on finance?
Yes. Panels, inverter, and battery storage are usually bundled into a single fixed-rate APR agreement, so you have one monthly payment for the whole system. Bundling also means 0% VAT applies under the energy-saving materials relief (running until March 2027). Many households structure repayments so the monthly cost lines up roughly with bill savings and Smart Export Guarantee income. See our finance page for how options are structured.
Will the monthly finance cost be less than my solar savings?
It depends on your system size, tariff, and household usage. Many setups are sized so the monthly finance payment sits close to the combined value of bill savings and Smart Export Guarantee (SEG) income. Self-consumption matters most: the more solar you use directly, the better the monthly maths. We model both sides at quote stage.
