Tried to wind this account down but failed. Still using it occasionally. Not investment advise. May be long or short at any time, and switch positions quickly.
A 3-MW wind turbine contains up to 4.7 tons of copper. Half is from the cable and wiring, 24% from the turbine/power generation components, 4% from transformers, and 19% from turbine transformers. Onshore wind farms use approximately 7,766 lbs. of copper per MW. /4