Energy efficiency measure means equipment, devices, or materials intended to decrease energy consumption, including, but not limited to, upgrades to a building envelope such as insulation and glazing; improvements in heating, ventilating and cooling systems; automated energy control systems; improved lighting, including daylighting; energy‑recovery systems; combined heat and power systems; or another utility cost‑savings measure approved by the governing body.
Energy efficiency means the ratio of output of performance, service, goods or energy, to input of energy;
Sewage sludge weight means the weight of sewage sludge, in dry U.S. tons, including admixtures such as liming materials or bulking agents. Monitoring frequencies for sewage sludge parameters are based on the reported sludge weight generated in a calendar year (use the most recent calendar year data when the NPDES permit is up for renewal).