Every energy audit shall be conducted in the following manner, namely:-
(1) Verification of energy usage data.-The accredited energy auditor shall—
(a) verify the information submitted to the designated agency under the Energy Conservation (The Form and Manner for Submission of Report on the Status of Energy Consumption by the Designated Consumers) Rules, 2007,for the previous two years through examination of energy bills, built-up area, inspection of energy-using equipment or appliances and systems, spot measurements, discussion or interview with the officers and staff regarding building operations, energy management procedures, equipment maintenance problems, equipment reliability, projected equipment needs, improvements undertaken or planned, establish validated data on annual energy consumption and prepare a report in Form I for the year preceding to the year for which energy audit report shall be prepared and submitted;
(b) establish energy performance index for the year(s) referred to in clause (a);
(c) disaggregate the measured energy consumption data and identify major energy using equipment, processes and systems.
(2) Scope of energy audit.- The accredited energy auditor jointly with the energy manager of the designated consumer shall –
(a) develop a checklist covering the scope of work for the conduct of energy audit required under the Act ensuring adequate coverage in terms of the share of total energy use that is covered in the energy audit;
(b) select energy consuming equipment, appliances, processes or systems for energy auditing;
(c) agree on best practice procedures on measuring the energy efficiency performance of selected equipment, appliances, processes or systems and to estimate energy performance and energy savings;
and
(d) collect inventory based energy consumption data from authenticated documents including log sheets, wherever available, and other data for the equipment, appliances, processes or systems covered within the scope of energy audit, operating data, and schedule of operation, MEP (Mechanical, Electrical and Plumbing) design, and historical data as may be considered essential by the accredited energy auditor for achieving the purpose of energy audit.
(3) Monitoring and analysis of use of energy data for energy audit.- The accredited energy auditor shall-
(a) verify the accuracy of the data collected in consultation with the energy manager, appointed or designated by the designated consumer in terms of notification number S.O. 318 (E), dated the 2 nd March, 2007, as per standard practice to assess the validity of the data collected;
(b) analyse and process the data with respect to-
(i) consistency of designated consumers’ data monitoring compared to the collected data;
(ii) recommendations to reduce energy consumption and improve energy efficiency;
(iii) summary overview of energy consumption in building or building complex by fuel type and by space type or both (such as lobbies, rooms or any other space);
(c) conduct energy performance assessment of equipment, appliances, processes or systems with due diligence and caution.
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(4) Preparation of recommendations on energy saving measures, their cost benefit analysis.- (i)The accredited energy auditor shall determine the overall efficiency of the equipment, appliances, processes or systems deployed in the building, techno-economic viability of proposed energy saving measures based on existing installations and practices, best available technologies and practices, site conditions or any other relevant condition, shall prepare a list of recommendations to save energy and the said list shall include –
(a) a brief description of each recommended measure;
(b) the estimated energy saving as well as energy cost reduction potential over a reasonable technical or economic life of the measure;
(c) any known or expected technical risk associated with each measure;
(d) a preliminary assessment of financial implication of each measure or assessment of maximum investment feasible based on the estimated energy cost saving potential over the life of the measure;
(e) tabulated summary of recommendations listed as per their implementation schedule (short, medium and long-term);
(f) the techno-economically better option after examination and discussion of alternatives options available for implementation of an energy saving measure;
(ii) where the installation or implementation of any recommended energy saving measures affect procedures for operation and maintenance, staff deployment and the budget, the recommendation shall include discussion of such impacts thereof and include their solutions.