we want to replace a 119 mw coal-fired power plant with a geothermal power plant. the geothermal recovery rate at the location is 5.6 w/m2 and we can assume that the geothermal plant runs at 100% capacity with a 17% total conversion efficiency. how much area (at a minimum) does the geothermal plant need to extend pipes to achieve 119 mw production?