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).
IRENA also notes that the nation has 41,000 jobs in solar heating/cooling, 36,000 jobs in wind, and 12,000 jobs in small hydropower. India: India has the fourth largest number of renewable energy jobs globally, employing 437,000 people directly and indirectly in the sector.