Quote:
Originally Posted by oil pan 4
Wind turbines have large gear boxes and big powerful hydraulic systems to pitch the blades and rotate the nacell.
That oil doesn't last the life of the wind turbine.
Mono crystalline solar panels use silicon crystals doped with rare earth elements. Exactly which elements and how much are tightly guarded trade secrets. The problem with these is how they are mined and whats left over. For every pound of useable rare earth elements that are brought to the surface you get about the same amount of unwanted radioactive waste. The water used in the brineing operations is also contaminated with radioactivity.
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State of the art wind turbines are direct drive. Transmissions are heavy and prone to breaking.
You have heard of synthetic oil, I assume. We can get oil for lubricants from many renewable sources.
Solar panels can be recycled. And we are making news types.
Where's your concern for the massive waste streams from fossil fuels?