1,800 days of minute-by-minute solar generation as Open Data

Back in 2014, I released a year's worth of solar generation data. I was enormously proud to recently discover that the data were cited in a couple of academic papers:

  • & & & PV with multiple storage as function of geolocation () page: 217-232. Elsevier BV. Solar Energy.
  • & RED WoLF: Combining a battery and thermal energy reservoirs as a hybrid storage system () page: 115209. Elsevier BV. Applied Energy.

Someone privately asked if I had more data - so I'm happy to release the full dataset. About five-and-a-half years' of readings, from 2013-12-28 to 2019-06-23.


Download .ZIP file (7MB)

The format is of the CSV is simple. ISO 8601 date, Watts being generated, Cumulative power generation.

Some days and data are missing due to power cuts and Internet outages.

The location of the panels was Oxford, UK (51.725275,-1.232889). They were South-facing. More technical details can be supplied if necessary.

These data are licensed to you as CC BY-SA. If you use them in an academic paper, you are expected to publish as open access.


6 thoughts on “1,800 days of minute-by-minute solar generation as Open Data

  1. I'm coming round your place with a big umbrella and slowly blocking and unblocking the sun in a Morse code pattern to get scandalous messages encoded in the dataset.

    I hereby call this method—wait for it—sunblockchain.

  2. Paul Kelly says:

    Thank you. This is very interesting data.

    I am probably being a bit dense, but could you clarify why the cumulative values usually start some way above zero at the beginning of the day?

    1. says:

      It's a quirk of the Fronius system. I think it's because the fringes of early morning sunlight are enough to trickle in some power.

  3. Andrew says:

    Very interesting, thanks for sharing.

    What electricity supplier do you use? I've been thinking about getting solar panels and following a few calculations believe that I should be able to cover my electricity needs with panels + battery storage, but think I may not save much money due to the daily standing charge (approx. 20p per day).

    Many thanks for any help!

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