Florida Power and Light has committed to building a solar power plant. JoAnne, an insustrial engineer working for FPL, has been charged with evaluating the three current designs. FPL uses an interst rate of 10% and a 20-year horizon. Design 1: Flat Solar Panels A field of "flat" solar panels angel to best catch the sun will yield 2.6 mw of power and will cost $87 million initially with first year operating costs at $2 million, growing $250,000 annually. It will produce electricity worth $6.9 million the year and increasing by 8% each year thereafter. Design 2: Mechanized Solar Panels A field of mechanized solar panels rotates from side to side so that they are always positioned at right angels to the sun's rays, maximizing the production of electricity. This design will yield 3.1 MW of power and will cost $101 million initially with first-year operating costs at $2.3 million, growing by $300,000 annually. It will produce electricity worth $8,8 million the first year and increasing 8% each year thereafter. Design 3: Solar Collector Field This design uses a field of mirrors to focus the sun's rays onto a boiler mounted in a tower. The boiler then produces steam and generals electricity the same way as a coal fired plant. This system will yiedl 3.3 MW of power and will cost $91 million initially with first-year operating costs at $3 million, growing by $350,000 annually, It will produce electricity worth $9.7 million the first year and increasing 8% each year thereafter