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).
Solar: According to The Solar Foundation, as of November 2014, the solar energy industry provided 173,807 direct jobs. This is a 21.8 percent increase in solar jobs from November 2013. Overall, solar jobs growth accounted for 1.3 percent of all new U.S. jobs in 2014. Factoring in indirect and induced job impacts, which amount to 531,200 additional jobs, total employment in the solar energy sector exceeds 705,000 jobs.