Solar Panels on a North-Facing Roof: The Honest Verdict
North-facing panels work, but they give up a meaningful slice of output against a south-facing array on the same house, enough that we rarely recommend a purely north array in the UK. Before you write your roof off, though: most north-facing homes have east and west faces that perform far better than people assume, and that is usually the real answer.
In This Guide
What north-facing actually loses
In the UK the sun tracks through the southern sky, so a south-facing slope catches it head-on while a north-facing slope works from indirect and diffuse light. The honest engineering consequence: a north array typically produces somewhere around two thirds to three quarters of what the same panels would make facing south, with the exact figure depending on roof pitch, the steeper the north roof, the worse it gets. Panels on a shallow north pitch see much more sky and lose less; a steep north slope faces away from the light for most of the day.
That is a real loss, not a myth, but notice what it is not: zero. North panels still generate every daylight hour, and modern high-output panels have shifted the argument from the physics to the economics. The question is not whether north panels work, it is whether the same money works harder somewhere else on your roof, and it usually does.
The east-west answer
Here is the reframe that rescues most north-facing houses: if your main roof faces north, its other slope faces south, and your gables or extensions likely face east and west. East and west arrays each typically deliver upwards of 80% of a south face's annual output, and splitting panels across both, like the two-face install pictured, produces something genuinely useful: a generation curve spread across the whole day.
Morning sun on the east array, afternoon and evening on the west, which matches when households actually use electricity better than a single midday south peak does. Paired with a battery, an east west system runs a home extremely well, which is why our £9,000 east west package exists as a standard offer rather than a compromise.
When north panels still make sense
- Topping up a maxed-out systemWhen the good faces are full and the household is hungry, EV, heat pump, big usage, north panels as the final tranche can still pay, priced honestly against their lower yield.
- Shallow-pitch roofsThe gentler the slope, the smaller the north penalty. On low-pitch modern roofs the numbers can surprise you.
- No alternative facesSome roofs genuinely offer nothing else. A bigger north array can brute-force respectable annual output, and we will tell you plainly whether the payback survives it.
- Self-consumption heavy homesWhere daytime usage soaks up everything generated, each north kWh still displaces a full-price grid kWh.
How we design around a north house
The survey answers this properly, but the design logic runs in a consistent order:
- Map every usable faceSouth slope of the same roof, gables, extensions, garages, the lot, with real measurements rather than assumptions.
- Model the split optionsMCS-standard yield figures per face, so the comparison is numbers, not opinions. The sizing logic starts from your usage.
- Let the battery do its workStorage smooths whatever curve the roof produces, and on a two-rate tariff it carries winter regardless of orientation, per the time-shifting guide.
- Say no when no is the answerIf a pure-north design does not pay, we tell you at the feasibility stage, not after the scaffold bill.
Think your roof faces the wrong way?
Most wrong-way roofs have a right-way answer. A feasibility assessment maps your faces and models the honest output for each option. Over 1,000 installs across the East Midlands since 2011. Call 0115 773 7575, 8am to 8pm, 7 days.
Book a feasibility assessmentFrequently asked questions
Do solar panels work on a north-facing roof?
Yes, at reduced output: roughly two thirds to three quarters of an equivalent south array in the UK, with roof pitch deciding where in that range you land. They generate from diffuse light all day. The better question is whether your east, west or opposite south faces beat them, and they usually do.
Is it worth putting solar panels on a north-facing house?
Usually yes, but rarely on the north slope itself. A north-facing house has a south-facing rear slope, and often east and west gables, which is where the panels belong. Pure north arrays only earn their place as top-ups on high-usage homes or where genuinely no alternative face exists.
Are east-west solar panels any good?
Very. Each face typically yields upwards of 80% of south, and the split spreads generation across morning and evening, matching household usage patterns better than a midday spike. Our £9,000 east west package with battery is a standard offer for exactly this roof shape, not a consolation prize.
Does roof pitch matter for a north-facing array?
A lot. Shallow north pitches still see plenty of sky and lose relatively little; steep north slopes turn their backs on the southern sun and suffer badly. It is the difference between a viable top-up and a poor investment, which is why we model your actual pitch rather than quoting rules of thumb.
Will a battery fix a north-facing roof's output?
A battery does not create generation, but it maximises the value of whatever the roof makes and adds cheap overnight charging through winter on a two-rate tariff. On marginal orientations that tariff value does real lifting, which is why orientation and storage get designed together rather than separately.
Should I wait for better panels before doing a difficult roof?
Panel efficiency improves incrementally, not magically, and waiting costs you every year of generation meanwhile. Modern high-output panels have already turned many marginal roofs viable. If the design pays today at honest figures, it pays; if it does not, no plausible next-year panel rescues it.
Related reading
- How many solar panels do I need?
- How efficient are solar panels?
- Battery time-shifting: the other half of the value
- Solar panel and battery package prices
- Do solar panels work in winter?
Designed for the roof you have
We are an MCS certified installer (NIC200223) based in Bulwell, Nottingham. Every orientation modelled honestly before you spend a penny. Call 0115 773 7575, 8am to 8pm, 7 days.
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