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Detailed Energy Audit Services

Comprehensive Energy Assessment for Sustainable Cost Reduction

A Detailed Energy Audit is an in-depth evaluation of all major energy-consuming systems in an industrial or commercial facility to identify inefficiencies, quantify losses, and develop a prioritised, implementation-ready energy conservation plan.

At SARK Engineers & Consultants, our detailed energy audits go beyond surface-level observations and provide measurement-based insights, financial analysis, and actionable engineering solutions to achieve long-term energy cost reduction and compliance.

What Is a Detailed Energy Audit?

A detailed energy audit is a comprehensive diagnostic study that analyses how energy is generated, distributed, and consumed across electrical, thermal, HVAC, and utility systems within a facility.

It is typically conducted when:

  • Energy costs are high or increasing

  • Management seeks long-term cost optimization

  • Capital investments are being planned

  • Compliance with BEE / PAT / sustainability goals is required

Unlike preliminary audits, a detailed energy audit involves on-site measurements, extended monitoring, and detailed techno-economic analysis.

BEE Certified

Most of our team members are BEE certified Energy Auditors and Managers

Experience

  • 50+ HVAC Audits

  • 27 + Types of industries

  • Pan India Functioning

  • Global Audits in 11 nations

Results

  • Fastest Paybacks in a month.

  • Highest Savings achieved had been 45%

  • More than INR 47 crores saved per annum

1

System Performance Assessment

  • Chiller efficiency and loading analysis (kW/TR measurement)

  • Air Handling Unit (AHU) performance testing

  • Cooling tower effectiveness evaluation

  • Pump efficiency and flow rate measurements

  • Compressor performance and capacity utilization

  • Energy consumption per ton of refrigeration (TR)

2

Distribution System Analysis

  • Ductwork leakage detection and quantification

  • Air balancing and CFM verification

  • Supply and return air temperature differential

  • Pressure drop across filters and coils

  • Insulation condition assessment

  • Zone control effectiveness

3

Control System Evaluation

  • Temperature setpoint optimization

  • Humidity control strategy review

  • Occupancy-based scheduling

  • Variable Frequency Drive (VFD) performance

  • Building Automation System (BAS) efficiency

  • Economizer operation verification

4

Chilled Water System Analysis

  • Chilled water supply and return temperature differential (ΔT) analysis

  • Flow imbalance and bypass detection

  • Pump sequencing and staging logic review

  • Heat exchanger and coil performance assessment

  • Fouling, scaling, and heat transfer efficiency evaluation

  • Opportunities for chilled water temperature reset

5

Operational & Maintenance Practices Review

  • HVAC operating schedules vs actual occupancy

  • Preventive and breakdown maintenance impact on efficiency

  • Filter replacement frequency and coil cleanliness review

  • Equipment short-cycling and standby losses analysis

  • Operator practices affecting system performance

  • Identification of no-cost and low-cost improvement measures

6

Energy Optimisation & Savings Opportunities

  • Identification of Energy Conservation Measures (ECMs)

  • Quantified energy saving potential for each recommendation

  • CAPEX–OPEX analysis with simple payback estimation

  • Prioritisation of short-term and long-term improvements

  • Retrofit and control optimisation opportunities

  • Implementation roadmap for sustained energy savings

How We Conduct a Detailed Energy Audit

Our methodology follows a structured and proven approach:

  • Pre-Audit Data Review – Utility bills, layouts, operating patterns

  • On-Site Measurements & Monitoring – Electrical, thermal and utility systems

  • Performance Benchmarking – Against best practices and standards

  • Energy Conservation Measure Identification – Technical and operational

  • Financial Analysis – Savings, investment and payback

  • Reporting & Presentation – Clear, decision-ready documentation

Hydroelectric Plant

01.

DIAGNOSE

We conduct extensive on-site measurements, data logging, and system-wise performance evaluation to identify energy losses, inefficiencies, and abnormal operating conditions.

02.

OPTIMIZE

Audit findings are converted into engineering-backed energy conservation measures (ECMs) with CAPEX–OPEX analysis, payback estimation, and prioritised implementation plans.

03.

RESULT

We support implementation planning and performance validation to ensure measurable and sustained reduction in energy consumption.

Deliverables You Receive

May Vary

After completing the detailed energy audit, you receive:

  • Executive summary for management

  • System-wise energy performance analysis

  • Identified energy losses and root causes

  • Energy conservation measures with savings potential

  • CAPEX–OPEX and payback analysis

  • Prioritised implementation roadmap

  • Support inputs for compliance and sustainability reporting

Get your Detailed audit quote now!

We will get back to you with your customized offer at the earliest.

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Frequently Asked Questions – Detailed Energy Audit

 

1. What is the difference between a detailed energy audit and a preliminary audit?

A preliminary audit provides a high-level overview, while a detailed energy audit involves extensive measurements, system-wise analysis, and financial evaluation to deliver implementation-ready recommendations.

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2. Who should conduct a detailed energy audit?

Facilities with high energy consumption, rising utility costs, planned expansions, or compliance requirements under BEE or PAT schemes should conduct detailed energy audits.

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3. What systems are covered in a detailed energy audit?

A detailed energy audit covers electrical systems, thermal and process systems, HVAC, utilities, and operational practices across the facility.

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4. How much energy savings can a detailed energy audit identify?

Detailed energy audits commonly identify 10–30% or higher energy saving potential, depending on baseline efficiency and operational practices.

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5. Is a detailed energy audit mandatory in India?

Detailed energy audits are mandatory for designated consumers under the BEE and PAT framework and are also recommended for organizations pursuing sustainability and cost reduction.

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6. How long does it take to complete a detailed energy audit?

The complete audit, including measurements and reporting, typically takes 3–5 weeks, depending on facility complexity.

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7. What deliverables will we receive after the audit?

You receive a comprehensive report including baseline analysis, savings opportunities, financial evaluation, and a step-by-step implementation roadmap.

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