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Plug-in solar panels on a shed or garage roof

Sheds and garages are popular spots because they're out of the way and often unshaded. You still need to plug the kit into a proper fixed socket – if the shed has no mains supply, the cable has to reach the house.

How much a two-panel kit makes here

FacingPer yearvs idealSaving
South788 kWh90%£120
South-east771 kWh88%£118
South-west766 kWh88%£118
East723 kWh83%£113
West717 kWh82%£112
North648 kWh74%£104

920W kit with an 800W inverter, middle of England, someone home part of the day, 26.32p/kWh. “Ideal” = garden frame facing south at 35°. Data: PVGIS.

Tips

Best-value kits for a shed or garage roof

KitPriceSavingPayback
DMEGC 950W Hoymiles HiFlow kit
City Plumbing		£456£1213.8 yrsSee deal
DMEGC 1050W Hoymiles HiFlow kit
City Plumbing		£480£1243.9 yrsSee deal
JA Solar 800W balcony & garden kit (2 × 465W)
Voltacon Solar		£470.95£1203.9 yrsSee deal
DMEGC 950W Hoymiles HiFlow PRO kit
City Plumbing		£480£1214.0 yrsSee deal
Worldwide Solar 800W (2 × 535W, HMS-800-2WB)
Worldwide Solar		£498£1254.0 yrsSee deal
Worldwide Solar 800W (2 × 460W, HMS-800-2WB)
Worldwide Solar		£484£1204.0 yrsSee deal

What would a kit save you?

No postcode – using the UK average (Birmingham).
Where would the panels go?
Which way do they face?
Use a phone compass, standing with your back to the wall or rail.
Shade during the day
Who's home in the daytime?
Solar only saves money when it powers something as it's made.
Space for
Your electricity price
Default: Ofgem price cap average, 1 Oct – 31 Dec 2026.
Only Octopus pays for plug-in export so far, and only on kits bought from them.
£121 a yearestimated saving
3.8 yrspayback
801 kWhmade per year
459 kWh (57%)used in your home

Based on the DMEGC 950W Hoymiles HiFlow kit (£456), the fastest payback for this spot.

Jan: 21 kWh madeJan: 16 kWh used at homeJanFeb: 34 kWh madeFeb: 24 kWh used at homeFebMar: 65 kWh madeMar: 39 kWh used at homeMarApr: 93 kWh madeApr: 49 kWh used at homeAprMay: 109 kWh madeMay: 58 kWh used at homeMayJun: 111 kWh madeJun: 59 kWh used at homeJunJul: 111 kWh madeJul: 59 kWh used at homeJulAug: 95 kWh madeAug: 52 kWh used at homeAugSep: 73 kWh madeSep: 41 kWh used at homeSepOct: 45 kWh madeOct: 30 kWh used at homeOctNov: 25 kWh madeNov: 19 kWh used at homeNovDec: 18 kWh madeDec: 14 kWh used at homeDec

made used at home (the part that saves money)

Best kits for this spot

Fastest payback

DMEGC 950W Hoymiles HiFlow kit

£456 at City Plumbing · saves about £121/yr · pays back in 3.8 yrs

See deal at City Plumbing
Runner-up

DMEGC 1050W Hoymiles HiFlow kit

£480 at City Plumbing · saves about £124/yr · pays back in 3.9 yrs

See deal at City Plumbing
Also good

JA Solar 800W balcony & garden kit (2 × 465W)

£470.95 at Voltacon Solar · saves about £120/yr · pays back in 3.9 yrs

See deal at Voltacon Solar