Maximise underlying efficiency
Ensuring that your buildings and systems are operating at maximum efficiency is one way of reducing the quantity of energy consumed. Surveys and audits of your buildings and energy-using processes will reveal opportunities to improve efficiency. Some measures will entail little or no cost, but others will require investment in physical improvements to equipment and building fabric.

Examples of common energy-saving measures include:

Not all measures are appropriate in all circumstances.
Elements of the utility management process
Top-level objectives