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Energy Audit

An Energy Audit is a systematic examination of energy consumption patterns within a facility, aimed at identifying inefficiencies, assessing energy flows, and optimizing energy usage. This process involves heat and mass balance assessments, evaluating the operational efficiency of major energy-consuming equipment, and pinpointing areas of energy wastage. A well-executed energy audit provides actionable insights to reduce energy consumption while maintaining or improving performance.

As per the Energy Conservation Act, an energy audit report must include detailed recommendations for improving energy efficiency, a cost-benefit analysis, and a structured action plan to achieve energy savings. Conducting energy audits through accredited energy auditors enables organizations to enhance operational efficiency, reduce fossil fuel consumption, and minimize greenhouse gas emissions.

At Bigeta Energy Solutions, we offer customized energy audit services tailored to industry-specific requirements, including ASHRAE Level I, II, and III assessments.

Our Energy Audit Process

  • Data Collection – Analysing historical energy consumption, reviewing energy bills, and evaluating load patterns.
  • On-Site Inspection – Assessing major energy-consuming systems to identify inefficiencies and operational bottlenecks.
  • Energy Measurement & Analysis – Conducting power quality assessments, evaluating thermal losses, and monitoring operational performance.
  • Energy Conservation Measures (ECMs) – Recommending process optimizations, energy-efficient technologies, and best practices.
  • Cost-Benefit Analysis – Providing financial insights such as payback period and return on investment (ROI).
  • Detailed Audit Report – Delivering a structured report with actionable recommendations for sustainable energy management.
  • Implementation & Monitoring – Supporting the execution of energy-saving measures and monitoring performance improvements.

Scope of Energy Assessment

Our energy audits go beyond equipment efficiencies by estimating overall system efficiencies, analysing process flows, and uncovering hidden losses due to design philosophies, system configurations, and operational practices.

Key focus areas include:

  • Establishing an energy consumption baseline using historical energy data.
  • Evaluating the energy consumption of key equipment such as HVAC, lighting, and motors.
  • Power and fuel assessment to identify inefficiencies.
  • Compressed air system study for leak detection and optimization.
  • Identifying strategies to enhance operational efficiency and reduce maintenance costs.
  • Resolving occupant comfort issues through improved energy management.
  • Identifying economically feasible ECMs and recommending best-fit solutions.
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Applicability

Detailed evaluation of plant/facility. Measurement of operating parameters of Electrical (Electricity bill, Transformers, Motors, DG sets, Lighting …), Mechanical (Pumps, Fans, Blowers, Chillers, AHUs, Air Compressors…) and Thermal systems (Boiler, Ovens, Heat Recovery Units, Dryers ...).

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Deliverables

Complete plant energy consumption break-up, performance evaluation of equipment and systems, Energy Conservation Measures including operating conditions, gap analysis, proposed conditions and techno-economic analysis.

Power and fuel assessment

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Applicability

Detailed study of various types of boilers such as fire tube, water tube, packaged, stoker-fired, pulverized fuel, and FBC boilers and auxiliaries.

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Deliverables

Performance evaluation, heat balance and identification of losses, Energy Conservation Measures including operating conditions, gap analysis, proposed conditions and techno-economic analysis.

Equipment energy efficiency study

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Applicability

Study to find out the efficiency of particular types of equipment like dryers, ovens, furnaces, evaporators, paint booths etc.

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Deliverables

Performance evaluation of equipment, gap identification, Energy Conservation Measures including operating conditions, gap analysis, proposed conditions and techno-economic analysis

Power and fuel assessment

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Applicability

Detailed study of compressed air generation, distribution system and consumers. The study includes compressor performance, intercooler and aftercooler performance, compressor room ventilation, cooling system, operating pattern and pressure mapping.

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Deliverables

Performance evaluation of compressors and auxiliaries, Energy Conservation measures including operating conditions, gap analysis, proposed conditions and techno-economic analysis

Cooling audit

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Applicability

The cooling audit is done for data centers, telecom centers for finding the effectiveness of cooling and find the possible energy conservation measures.

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Deliverables

Identification of hot spots and cold spots, air distribution mapping, performance evaluation of cooling systems, recommendation for avoiding hot spots and cold spots, Energy Conservation Measures including techno-commercial analysis.

Process energy study

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Applicability

Process energy study helps to find the energy consumption, cost and efficiency of a particular process, system or subsystem

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Deliverables

Energy consumption break-up, energy consumption/batch, energy cost and energy efficiency of the system. This will help for energy costing of particular system/process.

Energy saving assurance study

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Applicability

This study is conducted to validate the savings proposed in a project by internal team/third party. This is helpful to validate the idea of internal team.

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Deliverables

Validate the energy conservation project idea, measurement of input parameters. The report consists of operating parameters, techno-commercial analysis and variables which affects energy savings during implementation.

Heat recovery study

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Applicability

This study is done to reduce overall energy consumption by recovering heat energy and utilize in another system. Heating and cooling study is specifically suitable for Dairy, Pharma, Hotels, Hospitals, Paint Manufacturing, Auto Ancillaries, FMCG, Food and Beverages, Tyre, Brewery etc.

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Deliverables

Mapping of heat sources and sinks, energy consumption of systems and equipment, gap identification. Integrated solution for energy savings comprises of flesh steam recovery, condensate recovery, heat recovery, solar water heater, pressurized HW system, back pressure turbines etc.