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Energy Calculators
This selection of calculators can be used to analyze data on renewable energy sources.  
Renewable Energy Converter
Converts electricity from renewable sources into equivalent household energy needs and displaced emissions.  
Renewable Energy Growth Estimator
Projects levels of electricity generation and capacity levels given user inputs about growth rates and timeframes.   
Photovoltaic Land Area Estimator
Estimates land area requirements for photovoltaic electricity based on user inputs.  
Wind Power Land Area Estimator
Estimates land area requirements for wind electricity based on user inputs.  
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National Renewable Energy Laboratory U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Power Technologies Data Book National Renewable Energy Laboratory