This Calculator should be used as an estimating tool ONLY. 1  Enter the dimensions below to calculate how many bags of concrete you need. After entering the dimensions of the pad, click on Calculate and the calculator will provide you with the amount of concrete. 2  ft in. 3  ft in.  ft in.
According to the International Renewable Energy Agency (IRENA), renewable energy employment in the United States reached 724,000 jobs in 2014, a 16 percent increase from the previous year (IRENA does not include large-scale hydropower in their estimates).
This broad government study finds that renewable energy creates 4.3 times as many jobs as coal and 5.4 times as many as natural gas. It also finds that job creation from clean energy generally (renewables plus energy efficiency) is 5.3 times greater than from coal and 6.7 times greater than from natural gas.