Energy audit and rational energy consumptin / Description

Energy audit and rational energy consumption

Energy audit identifies and evaluates energy management and rational energy consumption measures in the company. It is possibile to reduce energy costs by 5 % to 15 % in a payback period of less than two years, to raise energy awareness of the employees, to establish a baseline for future improvements and to help the company to set an efficient energy management strategy.



- Energy auditing of the company.
- Feasibility study of the investments in utility systems and energy efficiency measures (new utility systems implementation, renewable energy systems, combined heat and power systems).
- Energy auditing of particular utility systems (heating, HVAC, cooling and/or process water, steam and condensate, compressed air).
- Training of employees for rational energy consumption.


Three common energy audits programmes are known:
- Preliminary audit (involves minimal interviews with site operating personnel, a brief review of facility utility bills and other operating data, and a walk-through of the facility to become familiar with the building and process operation and to identify areas of waste energy and/or inefficiency).
- General audit (expands the preliminary audit by collecting more detailed information about facility operation and by performing a more detailed evaluation of the energy conservation measures identified).
- Investment-Grade Audit (expands the general audit described above by providing a dynamic model of energy use characteristics of both the existing facility and all the energy conservation measures identified. It includes energy and non-energy investments which are rated on a single set of financial criteria that generally stress the expected return on investment. The projected operating savings from the implementation of energy projects for high level of confidence) are developed there.


The following utility systems can be assessed:
- Boiler house with steam, hot water or oil boilers including a combined heat and power system.
- Heating, ventilation and air conditioning (HVAC).
- Hot oil system.
- Steam and condensate system.
- Energy system including electricity consumers and lightening;
- Compressed air and systems of inert gasses;
- Cooling water and process water systems.