An energy audit is an inspection survey and an analysis of energy flows for energy conservation in a building. It may include a process or system to reduce the amount of energy input into the system without negatively affecting the output.

Two types of energy audits are available: a preliminary energy audit and a detailed energy audit. The type you choose will depend on your needs. Preliminary energy audit: This type of audit is simply a data-gathering exercise that offers a preliminary analysis.

An assessment of the energy needs and efficiency of a building or buildings used to find the inefficiencies, done through an inspection survey and an analysis of the energy use, to identify improvements that need to be made to increase energy efficiency. This is often the first step in identifying opportunities to reduce energy expenses and carbon footprint.