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 45942553634393343893903006225177
2018 16

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 9 Jan 2018
    • Readings contributed: 1,776
  • 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)
    • Data comes from: KMi hardware
    • Last data sent 23:38:50 25 Feb 2018
    • Readings contributed: 11,757,345
    • View Live feeds
  • 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 23:39:13 25 Feb 2018
    • Readings contributed: 5,179,279
    • View Live feeds
  • Andy - Tutor for Renewable energy T313 (W13)
    • Data comes from: KMi hardware
    • Last data sent 23:38:57 25 Feb 2018
    • Readings contributed: 8,370,210
    • View Live feeds
  • Jens - Student with solar PV installations (Anogia, Crete)
    • Data comes from: Commercial portal
    • Last data sent 23:45:00 31 Dec 2017
    • Readings contributed: 65,750
  • 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 Dec 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 23:38:55 25 Feb 2018
    • Readings contributed: 6,737,462
  • Member of the Energage MK/Champions network (MK15)
    • Data comes from: Commercial portal
    • Awaiting first data

Recent news articles of interest...

  • US slaps 'America First' tariffs on washing machines and solar panels
    The US has approved controversial tariffs on imported washing machines and solar panels. The move is in line with President Donald Trump's "America First" trade policy, which aims to protect local manufacturers from foreign competition. A spokesman said the administration would "always defend American workers, farmers, ranchers and businessmen". But China and South Korea, whose manufacturers will be most heavily affected, criticised the move. US officials said more trade enforcement actions would follow.
  • Regulators reject Energy Secretary Rick Perry's plan to subsidize coal and nuclear plants
    Federal regulators on Monday rejected a rule proposed by Energy Secretary Rick Perry that would have subsidized coal and nuclear power plants in some parts of the United States.
  • Diesel's UK market share to keep plummeting
    Diesel vehicles could see their share of the UK car market plummet from around 50 per cent a few years ago to just 15 per cent by 2025, hammered by a 'perfect storm' of environmental concerns and Government policy, a study by Aston University has found.

    Last week, figures from the Society of Motor Manufactures and Traders found that demand for diesel cars slumped by more than 17 per cent last year, something which the trade body attributes to anti-diesel rhetoric and the potential for tax hikes putting would-be buyers off.
  • Blockchain-powered P2P energy trading on trial at Britain's biggest social housing PV installation
    Verv, an energy monitoring and AI company, has laid claim to launching the UK's first energy trading community at a housing estate in Hackney, East London.

    The machine learning specialist has collaborated with community renewables developer Repowering London to conduct a field trial of its blockchain-based peer-to-peer energy trading solution at Banister House, a housing estate which has previously benefitted from community solar installs.
  • 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?


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 25 Feb 2018, 23:35:

  • Closed-cycle gas turbine - 4694 MW
  • Oil - 0 MW
  • Coal - 5539 MW
  • Nuclear - 7305 MW
  • Wind - 7927 MW
  • Pumped storage hydro - 0 MW
  • Non-pumped storage hydro - 194 MW
  • Open-cycle gas turbine - 0 MW
  • Other - 63 MW
  • French Interconnector - 778 MW
  • Irish Interconnector - 297 MW
  • Dutch Interconnector - 998 MW
  • East-West Interconnector - 459 MW

Total generation 28254MW, giving a grid carbon intensity for domestic generation figure of 357.67 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.