Metered, not modelled
Solar output in Reading
665–837 kWh per kWp a year
the middle half of 62 real Reading systems, measured over 2024
- Systems measured 62
- Median 774
- Best 10% of roofs 874
- Rank of 49 areas 27th
- Typical system size 3.4 kWp
A typical 4 kWp system here made roughly 2,660 to 3,350 units of electricity last year.
Not a forecast. 62 solar systems around Reading were metered through 2024, and the middle half made 665 to 837 kWh for every kWp of panels.
A good roof does better still: the top tenth here reached around 874 kWh per kWp, against a British median of 766.
Systems here are bigger than typical, a median of 3.4 kWp against 2.9 nationally.
That places Reading 27th of 49, ahead of 22 of the areas we can measure.
The local roof stock is unusually well pointed: 94% of these systems face south, south-east or south-west, against 86% nationally. Some of the figure above is orientation rather than weather.
What none of it tells you is what your own roof would do. These systems point in every direction and some have been up for fifteen years.
The spread behind that number
Every Reading system, grouped by what it made, against Britain as a whole. The two shapes overlap heavily, which is the honest headline: your postcode nudges the result, your roof decides it.
Reading: the middle half of 62 systems made 665–837 kWh per kWp.
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Areas near Reading
Neighbouring postcode areas we can also measure.
How Reading compares
Looking for someone to fit them? MCS-certified solar installers in Reading are listed in the Solarable directory.
Output figures from openclimatefix/uk_pv (Hugging Face, CC-BY-4.0), collected by Sheffield Solar. The British median is 766 kWh per kWp. How we measure.
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