If the windmills aren't turning in still conditions and it's freezing, do they need to be kept running to stop them seizing up? Meaning that zero output is actually negative.
They need to be turned occasionally for the same reason a berthed ships propeller shaft needs to be, to stop the bearings being distorted by the blade assembly that weighs many, many tons resting on one part of the bearing. That requires power of course
And the blades need heating to prevent ice build up (so chunks, hundreds of pounds in weight don’t get catapulted off blades which can be travelling up to several hundred mph). The nacelle needs to be temperature/humidity controlled (I’m not sure over what temperature ranges but it’s not a trivial demand). Blades need to be pitch controlled as well.
The advertised output is just the instantaneous generation. It could hardly be nett as that figure would go negative quite regularly I would think.
As well as the above, the ones out at sea, being blasted continually with corrosive salt air (resulting in lifetimes somewhat less than advertised) need to be serviced by diesel driven service vessels. Sailing vessels would hardly be able to keep to any sort of schedule.
If wind is so reliable, why aren't sailing vessels used to service them?
It is a real photo from a dedicated Metering Website. If you cannot tell the difference between an attempt to bring some reality to the lunacy which is the Climate Garbage, as opposed to a .GIF which is placed to amuse people, there really isn't much hope for you.
If the windmills aren't turning in still conditions and it's freezing, do they need to be kept running to stop them seizing up? Meaning that zero output is actually negative.
ReplyDeleteThey need to be turned occasionally for the same reason a berthed ships propeller shaft needs to be, to stop the bearings being distorted by the blade assembly that weighs many, many tons resting on one part of the bearing. That requires power of course
DeleteAnd the blades need heating to prevent ice build up (so chunks, hundreds of pounds in weight don’t get catapulted off blades which can be travelling up to several hundred mph). The nacelle needs to be temperature/humidity controlled (I’m not sure over what temperature ranges but it’s not a trivial demand). Blades need to be pitch controlled as well.
The advertised output is just the instantaneous generation. It could hardly be nett as that figure would go negative quite regularly I would think.
As well as the above, the ones out at sea, being blasted continually with corrosive salt air (resulting in lifetimes somewhat less than advertised) need to be serviced by diesel driven service vessels. Sailing vessels would hardly be able to keep to any sort of schedule.
If wind is so reliable, why aren't sailing vessels used to service them?
Thank you for that Mark. Useful information for my next gentle rant down the pub.
DeleteCould they not make the meter needle quiver a little.
ReplyDeleteYou know, just like Julia's Give-A-Fuckometer.
It is a real photo from a dedicated Metering Website. If you cannot tell the difference between an attempt to bring some reality to the lunacy which is the Climate Garbage, as opposed to a .GIF which is placed to amuse people, there really isn't much hope for you.
Delete