Evaluating energy performance requires good information on how, when, and where energy is being used. Collecting and tracking this information is necessary for establishing baselines and managing energy use.
Collect data
The data must be complete and accurate because it will be used for analysis and goal setting. Inventory all energy purchased and generated on-site (electricity, gas, steam, waste fuels) in physical units (kWh, mMBtu, Mcf, lbs of steam, etc.) and on a cost basis. Assemble energy bills, meter readings, and other use data.
Use a Tracking System
A system for tracking performance can range from a simple spreadsheet to detailed databases and IT systems. The following website http://www.energywatcher.com/ offers a lot of great advice as well as a "Free Utility Bill Tracking Spreadsheet" for tracking your energy data.
Benchmarking
Good Luck!!!
