Last summer, the electric bill was especially high (even compared to the previous hot summer). Fortunately, your facility has a power monitor and it even goes beyond just the service gear to look at specific key loads. One of the loads it looks at is the bank of air compressors that supply plant air. In June, the facilities manager noticed excessive electrical consumption by this bank of air compressors so lowered the air pressure from 100 PSI to 90 PSI under the theory they would run less ...

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