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Wall-mounted plug-in solar panels

Mounting a panel flat against a sunny house wall is simple and tidy. A vertical panel makes less over a year than a tilted one, but it does relatively better in winter when the sun is low.

How much a two-panel kit makes here

FacingPer yearvs idealSaving
South639 kWh73%£109
South-east596 kWh68%£104
South-west579 kWh66%£103
East447 kWh51%£84
West432 kWh50%£83
North181 kWh21%£41

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 house wall

KitPriceSavingPayback
DMEGC 950W Hoymiles HiFlow kit
City Plumbing		£456£1104.2 yrsSee deal
DMEGC 1050W Hoymiles HiFlow kit
City Plumbing		£480£1134.2 yrsSee deal
Worldwide Solar 800W (2 × 535W, HMS-800-2WB)
Worldwide Solar		£498£1144.4 yrsSee deal
DMEGC 950W Hoymiles HiFlow PRO kit
City Plumbing		£480£1104.4 yrsSee deal
DMEGC 1050W Hoymiles HiFlow PRO kit
City Plumbing		£504£1134.5 yrsSee deal
Worldwide Solar 800W (2 × 460W, HMS-800-2WB)
Worldwide Solar		£484£1094.5 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.
£110 a yearestimated saving
4.2 yrspayback
650 kWhmade per year
417 kWh (64%)used in your home

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

Jan: 39 kWh madeJan: 24 kWh used at homeJanFeb: 47 kWh madeFeb: 28 kWh used at homeFebMar: 64 kWh madeMar: 38 kWh used at homeMarApr: 67 kWh madeApr: 42 kWh used at homeAprMay: 61 kWh madeMay: 42 kWh used at homeMayJun: 56 kWh madeJun: 40 kWh used at homeJunJul: 59 kWh madeJul: 41 kWh used at homeJulAug: 61 kWh madeAug: 41 kWh used at homeAugSep: 63 kWh madeSep: 38 kWh used at homeSepOct: 53 kWh madeOct: 33 kWh used at homeOctNov: 43 kWh madeNov: 26 kWh used at homeNovDec: 37 kWh madeDec: 23 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 £110/yr · pays back in 4.2 yrs

See deal at City Plumbing
Runner-up

DMEGC 1050W Hoymiles HiFlow kit

£480 at City Plumbing · saves about £113/yr · pays back in 4.2 yrs

See deal at City Plumbing
Also good

Worldwide Solar 800W (2 × 535W, HMS-800-2WB)

£498 at Worldwide Solar · saves about £114/yr · pays back in 4.4 yrs

See deal at Worldwide Solar