Metered, not modelled
Durham vs Darlington & Newton Aycliffe
Durham and Darlington & Newton Aycliffe roofs made much the same last year.
774 against 773 kWh per kWp at the median, from 81 and 247 real systems.
Darlington & Newton Aycliffe
773 median kWh per kWp
middle half 678–832 · 247 systems · 29th of 49
Where the two actually overlap
Both areas, grouped by what each system made. The medians differ, but the shapes sit largely on top of one another — a good Darlington & Newton Aycliffe roof beats a poor Durham one comfortably. Location moves the odds; it does not decide the outcome.
Durham: the middle half of 81 systems made 660–823 kWh per kWp. Darlington & Newton Aycliffe: the middle half of 247 systems made 678–832 kWh per kWp.
Both figures are what real systems metered last year, so the gap mixes sunlight with system age, roof direction and shading. It is the difference in what people actually got, not a difference in sunshine alone.
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Output figures from openclimatefix/uk_pv (Hugging Face, CC-BY-4.0), collected by Sheffield Solar. How we measure.
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