Preliminary Audit-WTA

Building energy audit means a documented procedure carried out in order to determine the energy performance of the building and the degree of compliance of that performance with the requirements set by special regulations. A walk-through audit (WTA) is a study based upon the customer to discover the areas which need improvement. The preliminary audit is the most basic type of energy audit. The preliminary audit involves conducting interviews with a few key employees, a quick review of utility bills and a quick inspection of facilities in order to identify obvious energy savings opportunities.

Investment Grade Audit-IGA

Building energy audit means a documented procedure carried out in order to determine the energy performance of the building and the degree of compliance of that performance with the requirements set by special regulations. An investment grade audit is the most detailed energy audit. It analyzes the financial aspects of energy savings and the return on investment from potential changes or upgrades. This audit finalizes the modeling performed during a general audit and combines the information gathered with monetary figures.