Board Thread:Questions and Answers/@comment-86.132.162.122-20130218113027/@comment-84.186.189.225-20130608005103

you must use a IC2 HV/MV/LV Consumer (depending wich solar array you have) then a energy bridge, and then a BC Producer connected to a wooden conductive pipe.

Just search for Energy Bridge here in the wiki and watch the tutorial video.