Home plug-in solar
Reduce household electricity use
Start with savings and payback, then check UK rules and product evidence.
Plan home solarUK plug-in solar · check before you buy
UK Plug-In Solar: Check Compliance, Compare Kits & Calculate Savings
PlugInSolarCheck is built around the new UK plug-in solar route: exact ENA references, current compliance evidence, realistic household savings and buyable kits that match the evidence.
Great Britain launch update
Plug-in solar is now legal in Great Britain
Not every “800W” kit qualifies: check the exact complete system before buying or connecting it.
Reviewed by George Brocklehurst — Electrical EngineerLast checked 7 October 2026
Automated plug-in solar evidence monitoring is current; product prices and stock retain their own checked dates. How PlugInSolarCheck checks evidence and handles corrections.
Plug-in solar: start here
Three checks before spending money
1. Check the exact kitSearch the current ENA reference list and see whether the exact identity is compliant.Check the tracker →2. Check the economicsEstimate household generation, self-use, annual savings and payback before comparing prices.Estimate savings →3. Compare what you can actually buyMove from compliant evidence to practical, clearly disclosed purchase routes.Compare kits →
Current reader offer · direct partner
£20 off Thunder Bolt plug-in solar
Use code PLUGSLR20 on the Bolt 460W or Bolt 920W. Both exact Bolt references now have direct ENA Connect Direct records retained by PlugInSolarCheck, so they are shown as ENA-confirmed compliant.
Offer applies to the solar-only Bolt systems above. Prices and stock can change. The commercial relationship does not determine compliance status or product suitability.
Plug-in solar savings calculator
Would plug-in solar save enough to be worth buying?
Estimate annual generation, self-use, savings and payback, then take the result into the compliance tracker and buying guide.
Solar Reality Check
UK plug-in solar payback estimator
Honest numbers, not solar sales fluff
Are plug-in solar panels actually worth it?
No spreadsheets. No solar jargon. Just a realistic yes/no answer in 30 seconds.
Generation
680 kWh/yr
Likely saving
£133/yr
Payback
3.0 yrs
Your realistic annual saving
£133
Worst
£107
Likely
£133
Best
£173
Worth a serious look
Your setup has a realistic payback window. The numbers look promising if the kit price is accurate.
Calculator inputs
Build your setup
Most plug-in kits are likely to sit around 400W–800W.
800W
Use this as your target budget when comparing kits.
£399
Use your unit rate from your energy bill.
28p/kWh
Panel direction
Daytime usage
The bit most calculators hide
Unused solar energy
Used in your home70%
Used
476 kWh/yr
Likely unused
204 kWh/yr
If you run washing machines, dishwashers, dehumidifiers or charging during sunny hours, your savings improve. If the house is empty all day, payback gets worse.
Compare kits for your result
Your payback depends heavily on the kit price. Compare a few sensible options before buying — cheaper kits can often beat premium ones on return.
Portable power stations are a different product category and are not a substitute for a verified mains-connected plug-in solar system.
Compare the right product categoryShareable result
“My plug-in solar setup saves about £133/year.”
Payback: 3.0 years. Unused energy: 30%. Verdict: Worth a serious look.
Planning an off-grid outbuilding?
Size solar for a garden office or shed
Off-grid batteries and portable power stations need a different calculation from household plug-in solar savings. Start with daily watt-hours, peak appliance watts and winter charging limits.
Read the garden-office solar guideStay on the plug-in solar route
Rules, products and the exact-system checker
UK rulesWhat is allowed, what still needs checking and why the exact complete system matters.ENA reference checkerSearch the current exact-reference snapshot before ordering or connecting a kit.Compare plug-in solar kitsSee compliant evidence, mounting choices and current buying routes without mixing in off-grid equipment.
Secondary tools
Off-grid, portable power and appliance checks
These are still useful, but they now sit below the main plug-in solar journey so the site stays focused on its specialist purpose.
Other solar and portable-power journeys
Use these when you are planning a shed, garden office, camping setup or independent appliance power rather than mains-connected plug-in solar.
Shed and workshop
Power a shed
Work from lights, charging and tools to battery, inverter and panel requirements.
Build your shed shortlist
Garden workspace
Run a garden office
Plan dependable off-grid power for efficient daily workspace loads.
Plan your workspace
Camping and touring
Plan camping power
Build a trip around real appliances, reserve and realistic solar charging.
Build your camping setupOther calculators
Appliance, shed, garden-office and camping tools for off-grid or portable-power decisions.
Appliance power checker
Can It Power This?
Check battery, inverter and solar requirements for a UK appliance.
Check an applianceMains-connected planning
Home plug-in solar calculator
Estimate generation, annual savings, unused energy and payback.
Calculate home savingsShed and workshop
Shed solar calculator
Size battery storage, inverter output and panels for shed loads.
Size a shed systemGarden workspace
Garden office solar calculator
Plan reliable power for laptops, monitors, networking and lighting.
Size an office systemPortable off-grid
Camping solar calculator
Estimate trip energy, portable battery, inverter and solar needs.
Plan a camping setupBroader buying guides
Portable power, off-grid kits and measurement tools remain available without competing with the plug-in solar route above.
Compare solar product types
Separate grid-connected systems, off-grid kits and portable power.
Explore buying guidePortable power stations
Compare capacity, output, solar input and suitable portable loads.
Explore buying guideOff-grid shed kits
Choose between an integrated station and a component-based system.
Explore buying guideGarden office solar
Turn estimated office loads into a practical equipment shortlist.
Explore buying guideWant a more accurate appliance figure?
Estimates are usually enough. Measure real watts or kWh only when you want to refine the result.
Explore buying guideMore guidance
Additional decision guides, including plug-in solar registration and off-grid alternatives.
Plug-in solar: rules and buying guide
See the rules now in force, exact-system compliance checks and safer alternatives.
Read guideWhich solar system should I buy?
Choose between plug-in, portable, off-grid and installed solar.
Read guideIs plug-in solar worth it?
Understand self-use, complete cost and conservative payback.
Read guideChoose the right solar tool
Find the correct calculator by connection type and use case.
Read guideWhat if I forget to register plug-in solar?
Understand the simple network-notification duty without scare stories or legal jargon.
Read guide