Sigh. Old furphies never die - they just get endlessly recycled.
“ So what’s the carbon foot print of a wind turbine with 45 tons of rebar & 481m3 of concrete? Andy’s Rant
4 August 2014
Its carbon footprint is massive – try 241.85 tons of CO2.”
Put another way: even if we assume an extremely pessimistic average capacity factor of 10%, that’s the amount saved by just 14 weeks of operation of a 2MW turbine.