The market of biofuels had seen similar development, with production volume reaching a peak of 617 thousand tons of oil equivalent in 2017. This was nearly 70 times as much as the amount produced in 2004.
This growth of the past few years is also reflected in the number of sites generating electricity from renewable sources. Between 2016 and 2017, all methods of renewable energy generation had seen an increase in their number of sites, with an overall growth of nearly 37,000 sites. Of these methods, solar PV was by far the most numerous with roughly 936 thousand sites producing electricity in 2017.
Of English regions, wind production was most efficient in the East of England where wind farms, including those offshore, had generated 6,758.4 gigawatt hours of electricity in 2017. The North West came in a close second at 6,268 gigawatt hours worth. In terms of the capacity of installed wind power sites, the East also had the highest amount at 2,561.8 megawatts capacity that same year. By comparison, the North West followed with 2,155.3 megawatts.
In the past 14 years, the amount of electricity generation through solar power has rapidly increased, reaching 11,525 gigawatt hours in 2017. This was an increase of 2,881 percent compared to 2004. The most efficient region in England was the South West, where solar power had produced 2,908.9 gigawatt hours worth in 2017. That year, the South West was also the English region with the highest installed capacity at 3,180.7 megawatts.
Compared to wind and solar power, hydropower was still a small electricity generating entity in England, with the greatest amount of production found in the North West region at 31.2 gigawatt hours in 2017. In contrast to production output, the South West had the most hydropower generating sites at 106.
The English region most productive in the generation of electricity through landfill gas was the East of England at 185.6 megawatts in 2017. London was the largest producer of sewage gas energy in England at 51.7 megawatts that same year.
Like all other modes of renewable energy generation, bioenergy production in the United Kingdom has also seen significant growth in the past 27 years. Figures rose from 596 gigawatt hours in 1990 to a peak of 31,869 gigawatt hours in 2017. Among English regions, the West Midlands had the largest number of producing sites at 128 in 2017, an increase of 17 sites compared to the year prior.