How much effect do varying electrical energy rates have on actual compressed air costs?
Electrical energy costs paid by companies to generate compressed air continue to increase every year worldwide, and can vary greatly. As a representative example of these varying electrical energy costs within a single country, consider that in 2006 the US Energy Information Bureau reported that the electric rates paid by industrial customers ranged from 3.43 cents per kWh (in Kentucky) to 17.52 cents per kWh (in Hawaii). The graph below illustrates the widely varying electrical energy costs paid by a single industrial plant for generating compressed air by moving the plant to each of the regions of the Continental US in 2005 (using actual customer plant data), and what the projected electrical costs for that company by region will be for the year 2010 (US DOE).
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