UK Power Generation Grid Carbon Intensity

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The UK is committed to phasing out power generation by coal (and much later gas) and to increase the contribution from nuclear power and renewable technologies (wind, solar, hydroelectric and tidal). The goal is for power generation to become ‘zero carbon’ by 2050 when all power will be generated by renewable and nuclear means.

Since 2nd June 2015 we have recorded (once per day) renewable power production and the ‘carbon intensity’ of the UK National Grid. The graph shows the percentage of total power generation being met by renewable energy (wind plus hydroelectric) and the resulting carbon intensity of energy produced.

It can quickly be seen how renewable energy generation impacts directly and significantly on the Nation’s Grid carbon intensity.

UK Grid Carbon Intensity

We do not include contribution from nuclear power in the ‘Percentage Renewables’, but nuclear power is also a zero-carbon power generator. Currently, nuclear power provides about 20% of total power produced.

Continued reduction of grid carbon intensity will reduce the UK’s impact on the global rise of CO2 and average temperature. The benefit of lower grid carbon is further enhanced when used to heat our homes and businesses via electrically powered heat pump technologies, such as Ground Source Heating.

Currently, the Carbon Trust states that in all calculations of CO2 emissions from heat pumps, a grid intensity of over 500gCO2/kWh is to be used. However, our findings clearly show the average value is closer to 375gCO2/kWh.

We will continue to plot this data to show the beneficial impact of renewable power implementation.