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As far as I know there have not been any turbines rebuilt completely with next generation parts.
If a wind turbine has blades damaged they get replaced with reproduction parts or slightly improved design blades.
As far as required building a warn out wind farm with new stuff from the nacell pad up, I just have not heard of it being done. But there doesn't appear to be any reason that it can't be done.
For now it's cheaper to keep rebuild them out of like parts or suitable sub parts.
Once you get your land and grid tie in right of ways that can be up to half the cost of the wind farm.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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