The Pros & Cons of an Exponential Drop in Solar Cost

The cost of a unit of solar energy appears to be following Moore’s Law with solar costs dropping exponentially from $22 a watt in 1980 to $1.40 a watt today. But this positive price development for the consumer could prove to be a temporary set back for the solar industry. Moore’s Law, originally written to explain the advancement of computing hardware, predicts that the efficiency of technology in relation to price will double about every two years. If solar tech continues it’s current pattern it will cross $0.12 per kilowatt hour, the current average retail price of electricity, in 2020. In 2030 solar electricity will likely cost... Read Full Article