Best Energy Savings Measurement at Texas City Monsanto Plant

Abstract

This paper briefly reviews the production volume-energy usage correlation method developed and used at the Texas City plant to measure energy conservation progress. It includes basic logic of energy roll to users, conversion of cost sheet utilities quantities to common energy units with balanced conversion factors, correlation of monthly energy usages with production rates, and the use of these production energy correlations to measure subsequent energy performance.

Graphical illustrations demonstrate the validity of the method chosen for establishing the "BEST" achievable practical performance based on prior years' performance data. The annually established BEST energy performance for each department is incorporated into the plant computer energy program which reports monthly energy usage at comparable production rates compared with: 1) BEST energy usage (1972 through previous year), 2) previous year's energy usage, and 3) 1972 energy usage. Emphasis is placed on comparison with the "BEST" to stimulate continuing improvement.