It there evidence on the cost-effectiveness of manufacturing fly ash bricks?
YES. In August 2007, ET conducted a detailed and rigorous cost analysis of a Greenest Brick factory designed for construction in Missouri in 2008. The factory would be located at a major coal-fired power plant that uses Powder River Basin Coal from Wyoming, and that generates approximately 100,000 (one hundred thousand) tons of high-grade Class C fly ash each year. The fly ash is sufficient to make 45 million bricks a year. Based on a life cycle cost analysis that includes all capital costs items and all operation/maintenance (O/M) cost items, taxes, insurance, depreciation (over 20 years), and return-on-investment (ROI) of 15%, it was found that the total capital cost for the factory is $6.4 million for Greenest Bricks made in their natural color, and $6.7 million for Greenest Bricks with artificial color. The total annual O/M cost is $4.4 million and $5.7 million, respectively for natural-color and artificial-color Greenest Bricks containing 1% color (based on the dry weight of fly a
