19573810 comment Comment Re:What does $1/W mean? (Score 1) 245 by ryansm1 on Sunday March 06, 2011 @03:25PM (#35399182) Attached to: Ariz. Team Seeks Fossil-Fuel Cost Parity, Using Solar Energy Concentrators He is taking into account that the sun shines about eight hours on average (hence "more further south"), giving only 8kWh energy.