Graphic presentations of electricity generation in three European countries: 2017


More than half the Weather Dependent Renewable Energy installations in the EU(28) are accounted for by three Nations:

  • Germany
  • The United Kingdom
  • France

This post presents graphics on an hourly basis for three nations over the year of 2017.  The graphics are set to the same gross scale for direct comparisons.

Germany as a result of its long-standing Energiewende policy now has more than 1/3rd of the total Weather Dependent Renewables installation in the EU(28).

In terms of scale the UK at ~12% of the EU(28) Renewables installations roughly equates to other major nations including Spain, Italy.  For further comparative details of the development of Weather Dependent Renewable generation in other European nations see:

Four annual graphics on and hourly basis are produced for each country in question.

  • all generation sources
  • weather dependent renewables
  • nuclear and interconnect
  • CO2 emitting generation

Data sources

This post uses the following data sources:

  • Germany Renewables at hourly intervals

  • United Kingdom Renewables output at 5 minute intervals, condensed to hourly intervals

  • France Renewables output at 15 minute intervals, condensed to hourly intervals

  • For the scale of EU(28) installations by the end of 2017, EurObserver’ER publish their Renewable Energy “Barometers” for each type of Renewable generation annually, for an example, see:


In summary the 2017 installations of Weather Dependent Renewable in the three countries are:

Screenshot 2018-11-28 at 08.51.14.png


Germany  2017

Screenshot 2018-11-03 at 11.26.30

Screenshot 2018-11-03 at 11.27.38

Screenshot 2018-11-03 at 11.26.56

Screenshot 2018-11-03 at 11.27.15


United Kingdom  2017

Screenshot 2018-11-03 at 11.28.06

Screenshot 2018-11-03 at 12.26.01.png

Screenshot 2018-11-03 at 12.27.05.png

Screenshot 2018-11-03 at 12.18.49

France 2017

Screenshot 2018-11-03 at 11.36.50

Screenshot 2018-11-03 at 11.37.43

Screenshot 2018-11-03 at 11.38.24

Screenshot 2018-11-03 at 11.38.08

Screenshot 2018-11-28 at 08.51.14.png

Weather Dependent Renewables seasonal effects:  January – July 2017

The following Graphics for January and July 2017 for Germany, the United Kingdom and France show:

  • the inevitable diurnal nature of Solar PV power
  • the long winter gaps in generation for Solar PV power
  • the variability of Solar power according to weather conditions
  • a remarkable level of coordination of wind droughts across all three nations even thought they represent widely disparate geography ranging from the North to the South of Europe
  • remarkable variability in Wind power production and the steep cut offs of power output according to variations in the weather, this is inspite of the fact that these aggregate figures cover whole Nations, so adverse wind droughts can occur very widely throughout Europe.
  • in effect these graphs show that the assumption, that “the wind is always blowing effectively somewhere”, is in error
  • This indicates that just adding further Weather Dependent Renewable generation cannot solve the problem of inherent intermittency.

The following Graphics are to the same scale.  Thus the fact that Germany Weather Dependent installations are about 3 -4 times larger overall than in the France or the United Kingdom.  However the coordination of wind drought conditions is visible in both Winter and Summer conditions.  High Solar output is not necessarily coordinated adverse wind power conditions.


Winter:  January 2017

Screenshot 2018-11-14 at 07.59.22.png

Screenshot 2018-11-14 at 08.10.07.pngScreenshot 2018-11-14 at 10.43.24.png



Summer:  July 2017

Screenshot 2018-11-14 at 08.00.06.png

Screenshot 2018-11-14 at 08.02.24.pngScreenshot 2018-11-14 at 08.13.05.png

Solar energy is primarily ineffectual in winter as follows:

  • Germany winter Solar output is ~16% of summer production
  • United Kingdom  winter Solar output is ~21% of summer production
  • France winter Solar output is ~35% of summer production.