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).
In the year from August 2013 to August 2014, the number of foreign-born workers holding jobs in the United States climbed by 806,000, from 23,833,000 to 24,639,000. During the same August-to-August period, the number of native-born Americans holding jobs increased from 120,676,000 to 122,008,000, a climb of 1,332,000.