Capturing and sharing renewable energy generation data

Latest Solar PV energy production data (kWh)

ContributorYesterdayLast weekLast month

NB: these figures do not take into account size of array, orientation, etc. Some feeds are not updated often enough to show daily data.

Latest Solar Thermal energy production data (kWh thermal)

Year JanFebMarAprMayJunJulAugSepOctNovDec
2016 38840329623513579
2017 459425536343933438939030062251

A new project to capture, store and share power generation and use data from domestic renewable energy installations, including solar, wind and solar/geo thermal sources. We will employ low-cost off-the-shelf systems, such as the emonPi, to send data to a central data store and allow students and courses to query that data in a wide variety of ways. We will make the collected data available to students and researchers.

Our initial installation makes use of the open energy monitor products, made in North Wales. These low-cost devices are quick and easy to set up, transmit their data over your domestic Internet connection and employ open-source software. They are also expandable - both to monitor a variety of sensors, including current and temperature, and into the arena of control.

Contributed data is anonymized and the location of the source limited to a partial postcode.

Project members:

  • Chris Valentine - hardware, data collection and database
  • Roger Bradley - OU Associate Lecturer
  • Allan Third - data processing
  • John Domingue - project manager

If you have a renewable energy installation and would like to contribute data, please download and complete a site profile form and return it to the address indicated. If you would like to make use of the data we collect in your teaching or simply ask questions about the project, please use the contact form. You do not have to have an existing association with The Open University.

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Contributing partners - 'view' links are to individuals' data visualisation(s):

  • The Open University - The Open University (MK7)
    • Data comes from: Commercial portal
    • Last data sent 00:00:00 10 Nov 2017
    • Readings contributed: 1,716
  • Chris Valentine - (LU7)
    • Data comes from: KMi hardware
    • Last data sent 16:17:45 8 Sep 2017
    • Readings contributed: 1,711,828
    • View Live feeds
  • Roger Bradley - Tutor for T213, T313, T452 and U116 (TF9)
  • Roj Hudman - Renewable energy installer (B74)
  • Jeremy Roebuck - Tutor for B100, B122 and B322 (EH41)
  • Associate lecturer with a solar PV installation (B90)
    • Data comes from: KMi hardware
    • Last data sent 17:00:41 31 May 2017
    • Readings contributed: 6,867,354
    • View Live feeds
  • Natalie - OU Student (MK17)
    • Data comes from: KMi hardware
    • Last data sent 17:04:11 13 Dec 2017
    • Readings contributed: 3,927,616
    • View Live feeds
  • Andy - Tutor for Renewable energy T313 (W13)
    • Data comes from: KMi hardware
    • Last data sent 17:03:50 13 Dec 2017
    • Readings contributed: 7,122,556
    • View Live feeds
  • Jens - Student with solar PV installations (Anogia, Crete)
    • Data comes from: Commercial portal
    • Last data sent 00:00:00 4 Nov 2017
    • Readings contributed: 60,567
  • Tomaz - Student on an environmental management and technology degree (Feistritz an der Gail, Austria)
    • Data comes from: Commercial portal
    • Last data sent 00:00:00 31 Oct 2017
    • Readings contributed: 15,332
  • Charles - (Guildford)
    • Data comes from: Personal record
    • Last data sent 00:00:00 30 Nov 2016
    • Readings contributed: 641
  • Mike - Student studying T313 Renewable Energy (DY10)
    • Data comes from: KMi hardware
    • Last data sent 17:03:55 13 Dec 2017
    • Readings contributed: 5,486,408
  • Member of the Energage MK/Champions network (MK15)
    • Data comes from: Commercial portal
    • Awaiting first data

Recent news articles of interest...

  • Roll-up solar panels power Flat Holm island
    Roll-up solar panels are being used to help power an island off the coast of Cardiff. The Rapid Roll system allows flexible solar panels to be unrolled like a carpet from a trailer in two minutes. The pioneering technology aims to meet demands from increased tourism and environmental and logistical challenges on Flat Holm.
  • Webinar: When does EV charging with PV make sense?
    Covers: Charging options - How to charge my EV at home?; Charging power - The concern of long charging times; Facts & Figures - About distance, capacity and charging time; Fronius Solutions - Which control options are available? ; Profitability - Is EV charging with PV economical?
  • Sales of new diesel and petrol vehicles to be banned from 2040 in UK
    New diesel and petrol cars and vans will be banned in the UK from 2040 in a bid to tackle air pollution, the government is set to announce. Ministers will also unveil a £255m fund to help councils tackle emissions from diesel vehicles, as part of a £3bn package of spending on air quality. The government will later publish its clean air strategy, favouring electric cars, before a High Court deadline.
  • Electricity shake-up could save consumers 'up to £40bn
    Consumers in the UK could save billions of pounds thanks to major changes in the way electricity is made, used and stored, the government has said. New rules will make it easier for people to generate their own power with solar panels, store it in batteries and sell it to the National Grid. If they work, consumers will save £17bn to £40bn by 2050, according to the government and energy regulator Ofgem.
  • World's first floating wind farm emerges off coast of Scotland
    The world's first full-scale floating wind farm has started to take shape off the north-east coast of Scotland. The revolutionary technology will allow wind power to be harvested in waters too deep for the current conventional bottom-standing turbines. The Peterhead wind farm, known as Hywind, is a trial which will bring power to 20000 homes.
  • 'Extraordinary' month for Scottish renewable energy
    Scotland had "another extraordinary month" for renewable energy in May, according to environmental groups. Wind turbines alone provided enough electricity to supply 95% of Scottish homes.


Locations of greenDATA contributors. Click on a marker to see further information about their renewable energy installation.


Click to filter contributors by renewable source

Mixed sources

Solar PV

Solar thermal

Wind turbine

Ground source heat pump



Wave power

Maps Icons Collection

Current grid carbon intensity

Latest generation data by source as of 13 Dec 2017, 17:00:

  • Closed-cycle gas turbine - 20788 MW
  • Oil - 0 MW
  • Coal - 8046 MW
  • Nuclear - 6034 MW
  • Wind - 7195 MW
  • Pumped storage hydro - 733 MW
  • Non-pumped storage hydro - 692 MW
  • Open-cycle gas turbine - 194 MW
  • Other - 89 MW
  • French Interconnector - 1939 MW
  • Irish Interconnector - 0 MW
  • Dutch Interconnector - 702 MW
  • East-West Interconnector - 0 MW

Total generation 46412MW, giving a grid carbon intensity for domestic generation figure of 545.15 gCO2/kWh

The calculations are made as follows: for each generation figure, normalise by the total demand (ignoring negative values on interconnections since this is counted in the generation elsewhere already) and multiply by the carbon intensity of each specific generation type; then divide by 0.93 to account for generation that is lost in transmission. Note that solar PV generation is not measured centrally.

Data from, with thanks to Prof. Alex Rogers, Department of Computer Science at the University of Oxford.