With the UK Met Office starting to name storms it is refreshing to see that there is at least one person who works there that has a sense of humour. Wind blowing nowhere is now giving way to the winter storm season beginning with Storm Abigail that is tracking to the W and N. We have had a few blows and squalls here in Aberdeen.
As I write, metered + embedded wind as recorded by Clive Best is churning out 9.1 GW or 23% of UK demand. And as demand drops and the wind rises through the night, no doubt this percentage will rise. A triumph of electrical and social engineering. “King” coal is the big loser.
Note that UK wind is metered in two different ways. Large wind farms are part of the grid balancing system and are seen as a variable source of supply. Small wind farms and single turbines are seen as negative demand in the same way as roof top solar. Hence the total demand figure from BM reports underestimates actual demand since embedded generation is seen as negative demand.
Leo Smith’s Gridwatch, that monitors the National Grid Balancing Mechanism reports, is reporting the grid figure for large wind farms and you will see that Clive’s figure for wind is 1.46 times larger because it includes the estimated embedded small wind farm production.
Grid watchers will be looking to see if there are any blackouts in Scotland as over supply strangles the grid, and to the level of curtailment payments where suppliers are paid to stop producing electricity that cannot be used.