Bit off a strange question but really jist wondering (very basic terms) how the whole national grid system of substations works esp to do with wind turbines.
The reason i'm asking is.... Anyone who has travelled up the M74 in the last few years cannot have failed to noticed the new wind farm from the top of the Beatock summit into the upper clyde valley, think something like 220ish turbines on the slopes either side of road. With most other turbines they've built in this area they have started to lay the cables at the same time as construction started, which makes perfect sense so everything is in place when turbines are finished and come online.
This wind farm is large enough it needs it's own sub station (built on a flood plain which floods regulary, but that's a different story) (i'm guessing a sub station is very short term storage to try and level out peaks/troughs in production afore gets onto the grid?) yet they only started building it a couple of months ago despite some off early turbines being finished about 2 years ago and the vast majority have been turning for a year, also i'm pretty sure they havenae laid a cable (only started digging road up recently) from the turbines to the future sub station yet.
So what has been happening to all the electricity that has been generated over the last 2 years? Can u tap/hotwire into a pylon on a temporary basis and run windmills at a slow constant speed
Cheers in advance