Its a big blade, but only produces half the year. So it sits idle for days and days because no useful wind!
No one knows this. By the way, 50% capacity factor is a great wind deal!
I recently had a long conversation with a guy who worked for Eversource. The biggest electric utility in New England.
He told me about the wind farm they were proposing to build in Nantucket sound. They were planning on installing turbines that were over 600’ tall. I think they were being built by GE.
He informed me that they ONLY produce electricity when the wind is blowing between 14-18 mph. Below that the blades do not turn. Above that the blades spin freely but the generator is not engaged.
The more turbines purchased, the cheaper they are. The bigger they are, the less the cost/KWH. Companies like GE will not sell you just one or two. You have to buy those from some other manufacturer. Most of the turbines in service today are obsolete because they are not big enough.
That the only place to put these things is offshore. Like in the North Sea.
Denmark is building facilities on two different islands to store(batteries) and distribute the power from off shore wind. From there they will send the power to Sweden, Denmark and The Netherlands as needed.