Metered, not modelled
Solar output in Ipswich
786–914 kWh per kWp a year
the middle half of 763 real Ipswich systems, measured over 2024
- Systems measured 763
- Median 860
- Best 10% of roofs 942
- Rank of 49 areas 4th
- Typical system size 3.5 kWp
A typical 4 kWp system here made roughly 3,140 to 3,660 units of electricity last year.
Ipswich has one of the largest metered samples in Britain. 763 solar systems here were read from their own meters through 2024, and the middle half made 786 to 914 kWh for every kWp of panels.
The best tenth reached about 942 kWh per kWp — some 23% clear of the British median of 766, and among the strongest roofs we can measure anywhere.
That puts Ipswich 4th of the 49 postcode areas we can measure.
Systems here are bigger than typical, a median of 3.5 kWp against 2.9 nationally.
At the other end, the quietest tenth of systems here made about 701 kWh per kWp — usually shade, a poor direction, or both.
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 Ipswich 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.
Ipswich: the middle half of 763 systems made 786–914 kWh per kWp.
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Areas near Ipswich
Neighbouring postcode areas we can also measure.
How Ipswich compares
Looking for someone to fit them? MCS-certified solar installers in Ipswich 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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