In the 2008/2009 time frame, the cost of solar power generation hardware (PV modules and related equipment) began dropping so significantly that many economists forecasted the cost to eventually reach the same costs as nuclear or coal power. This metric is typically measured by dollars/watt of energy produced, and as of 2015, the average cost of production of a PV module has dropped to $.30/watt, an incredible number. Read more The Continuing Descrease in the Cost to Go Solar