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Are Wind Turbines Really “Losers”?
As the owner of a small wind-turbine for three years (until it caught fire), I've been able to assess first hand whether they are worthwhile.
The control electronics is very important.
It must be capable of taking all of the output, even during a gale when your batteries are already full.
I installed a 2-stage dump-load to accept excess generation.
When commercial turbines are instructed to generate less power, they must first be turned sideways to the wind direction.
You can't just flick a switch to disconnect a turbine from the load, as happens with PV panels.
It would simply rotate even faster because there's no longer anything accepting the energy.
Posted by: @batpredThis US administration is trying to apply the brakes on many offshore wind farms
Poor physics.
You'd need an enormous brake to bring those things to a standstill.
In common with hydroelectric generation, wind turbines generate more of their annual output in the winter months, which is when we need it.
Both technologies use the same sort of mechanics to turn rotational energy into electricity.
However, air is much lighter than water, and also prone to rapid fluctuations (gusting).
So the same size of 'generator' produces a lot more electricity when used as a water turbine than when powered by the wind.
Save energy... recycle electrons!
Posted by: @transparentPosted by: @batpredThis US administration is trying to apply the brakes on many offshore wind farms
Poor physics.
You'd need an enormous brake to bring those things to a standstill.
Yup, I would be confident the individual is not even operating car brakes! 😀
8kW Solis S6-EH1P8K-L-PLUS hybrid inverter; G99: 8kW export; 16kWh Seplos Fogstar battery; Ohme Home Pro EV charger; Vaillant Arotherm Pro 7kW; 100Amp head, HA lab on mini PC
@transparent I dare say that the negative forces generated by Trump could quite easily arrest the motion of many ‘windmills’. 😒
Toodles, heats his home with cold draughts and cooks food with magnets.
Posted by: @transparentIn common with hydroelectric generation, wind turbines generate more of their annual output in the winter months, which is when we need it.
Both technologies use the same sort of mechanics to turn rotational energy into electricity.
However, air is much lighter than water, and also prone to rapid fluctuations (gusting).
So the same size of 'generator' produces a lot more electricity when used as a water turbine than when powered by the wind.
Agreed, the more inertia/the larger the blades, the better the turbine handles gusting.
Another factor is the altitude, that impacts air pressure and so how much energy the wind turbine can safely harvest.
It should also be said that some coastal locations have been harvesting very predictable and regular winds for decades, as hang gliders are well aware..
8kW Solis S6-EH1P8K-L-PLUS hybrid inverter; G99: 8kW export; 16kWh Seplos Fogstar battery; Ohme Home Pro EV charger; Vaillant Arotherm Pro 7kW; 100Amp head, HA lab on mini PC
Posted by: @toodles@transparent I dare say that the negative forces generated by Trump could quite easily arrest the motion of many ‘windmills’. 😒
hence the need for turbines and independent minds that cannot be so easily arrested.. 😉
8kW Solis S6-EH1P8K-L-PLUS hybrid inverter; G99: 8kW export; 16kWh Seplos Fogstar battery; Ohme Home Pro EV charger; Vaillant Arotherm Pro 7kW; 100Amp head, HA lab on mini PC
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I wonder whether that turbine could "fly" where the pylon´s don´t..
8kW Solis S6-EH1P8K-L-PLUS hybrid inverter; G99: 8kW export; 16kWh Seplos Fogstar battery; Ohme Home Pro EV charger; Vaillant Arotherm Pro 7kW; 100Amp head, HA lab on mini PC
We were sailing near a wind farm in the North Sea last night, coming back from the Baltics.
The sea was very calm and the wind turbines were still
Interesting to see them in the wild
It was a lovely sunset
Really brought home just how much work goes into balancing the grid even now and this will only increase over time when these farms are still.
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