Metered, not modelled
Middlesbrough vs Oldham & Rochdale
Middlesbrough and Oldham & Rochdale roofs made much the same last year.
735 against 733 kWh per kWp at the median, from 87 and 133 real systems.
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 Oldham & Rochdale roof beats a poor Middlesbrough one comfortably. Location moves the odds; it does not decide the outcome.
Middlesbrough: the middle half of 87 systems made 645–779 kWh per kWp. Oldham & Rochdale: the middle half of 133 systems made 681–758 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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