Install and activate sun-power energy collectors.
Constructs concrete block and mortar post and installs precast concrete panels to build fences: Lays out fence, according to blueprint specifications, using level and tape measure. Operates earth moving equipment to clear and level land [OPERATING ENGINEER]. Operates power-auger to dig post holes [EARTH-BORING-MACHINE OPERATOR]. Positions reinforcing iron in holes, and places preshaped wood forms around hole. Mixes and pours concrete into forms or lays concrete blocks to form fence post, using mixer, wheelbarrow, or trowel. Positions precast concrete panels between block or concrete post, using crane.