Whats the old Sunday School song about building a house on sand?
As I posted elsewhere..
.... its not a problem....
Just some thicko from somewhere or other has been out there in a boat and noticed that over 6 hours the turbine was 3.5m lower in the water than it was when he got there....
Give him another 6 hours of observing, and the problem should correct itself....
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So the way it's going, it'll take about 1 million years to recoup the cost with wind generated electricity....
If you take the output from one turbine running at 80% and calculate at ordinary domestic electric rates, it earns about £16,000 per 24hrs.
Now because i work there, it does not mean I am a fan, its just a job.
As for them cracking up, perhaps I should not press too hard on the boat landing when the guys go up the ladder........!!
I'm not directly involved with wind turbines but do work in the energy industry so am aware of figures which are published occasionally in their internal publications.
It is generally accepted that a wind turbine annually has an efficiency between 15-30% of its max. output.
For a 1.5 MW turbine (I don't know the capacity of the Gunfleet ones) at a generous 25% efficiency:
1.5 MW × 365 days × 24 hours × 25% = 3,285 MWh = 3,285,000 kWh
Which equates to 375 kW/h or about £40 per hour (domestic rates)............... £960 per day??
Working from memory and a quick calculation so happy to be shot down in flames)
Paul.
Dong are quoting 64MW for the next 22 turbines at Gunfleet 2.
So a max of 3MW. My colleagues believe that over the life, including a higher ramp of maintenance as the units reach operational maturity and senility, that 15%-20% is best guess, and bear in mind, at the correct day/season/time.
20% x 3MW= 0.6MW =5256kW/h @ 22p= £1150 per day.
Not enough really.
who ever pays £0.22 per kw retail.
our day rate is 13.9p
night / op £0.0543