... the lowest specific energy consumption. LBNL-50934 Energy Efficiency Improvement and Cost Saving Opportunities for Breweries An ENERGY STAR® Guide for Energy and Plant Managers ... 10 See Guidelines for Energy Management at www.energystar.gov. 18 duties to an energy director, establishing an energy policy, and creating a cross-functional energy team. Steps and ... Lighting 6% Electrical Energy Other 10-30% Source: Sorrell, 2000 4.2 Energy Intensity Energy intensity, or specific energy consumption, reflects the amount of energy required per unit...