Preliminary Energy Audit The industry's purpose, size, nature, level of detail required for the Energy Consultant, and potential and intended scope of energy savings and cost reduction all influence the sort of industrial energy audit that is undertaken. These standards allow for the classification of industrial energy audits into two categories: preliminary energy audits (also known as walk-through energy audits) and detailed energy audits (Diagnostic Energy audits).
An initial Energy Audit(Walk-through audit). A rudimentary examination of the plant's energy use and performance is usually done in a preliminary energy audit using readily available data. This form of audit requires very little measurement and data collection. These audits are brief, the results are more general, and they present opportunities for improving overall energy efficiency. The estimated economic analysis frequently just includes the simple payback period, or the amount of time needed to recover the initial capital outlay through actualized energy savings. An evaluation of a building's energy consumption features, such as its size, type, rate of energy consumption, and significant energy-using systems, is referred to as a "preliminary Energy Audit." For local communities and the state, investing in infrastructure through increased energy efficiency in public buildings is a win-win opportunity. Energy-efficient structures improve working and living