September 26, 2023

Enhancing Efficiency: A Comprehensive Energy Audit Case Study for a Leading Petroleum Refinery’s LPG Bottling Plant in Port Blair

Introduction

An LPG bottling plant in Port Blair, operating under a leading petroleum refinery, plays a vital role in energy distribution across the region. With continuous operations involving compressors, pumps, and cylinder handling systems, energy consumption forms a significant portion of operational costs.

To improve energy efficiency, reduce costs, and align with sustainable practices, the plant engaged Elion Technologies & Consulting Pvt. Ltd. to conduct a detailed energy audit. The objective was to identify inefficiencies, establish a baseline, and recommend actionable energy-saving measures.

Energy Audit Assessment

Audit Methodology & Scope

Elion conducted the audit in line with globally accepted standards and industry best practices.

1. Data Collection & Analysis

  • Review of historical electricity bills (12 months)
  • Load profiling and demand analysis
  • Identification of peak consumption patterns

2. Equipment Inventory & Assessment

  • Air compressors and compressed air systems
  • Pumps and motor-driven systems
  • Lighting systems (indoor & outdoor)
  • HVAC and auxiliary systems

3. Measurement & Monitoring

  • On-site measurements using power analyzers
  • Voltage, current, power factor, and harmonics analysis
  • Compressed air leak detection

4. Standards Referenced

  • ISO 50002Energy Audits Standard
  • OISD Guidelines – Energy management in oil & gas sector

Energy Use Baseline

The baseline energy consumption was established to identify major energy-consuming systems:

System Annual Consumption (kWh) Energy Cost (₹) % Contribution
Air Compressors 1,200,000 96,00,000 40%
Pumps 750,000 60,00,000 25%
Lighting 300,000 24,00,000 10%
HVAC Systems 450,000 36,00,000 15%
Others 300,000 24,00,000 10%

Key KPI

  • Energy Consumption per Cylinder Filled: 0.85 kWh/cylinder

Energy Saving Opportunities

Several opportunities were identified to optimize energy consumption:

Measure Energy Saving (%) Annual Savings (kWh) Investment (₹) Payback Period
Compressor leak reduction 8% 96,000 5,00,000 6 months
VFD installation on pumps 10% 75,000 8,00,000 10 months
LED lighting upgrade 50% 150,000 4,00,000 8 months
Power factor improvement 3% 36,000 2,50,000 6 months
Heat recovery system 5% 60,000 6,00,000 12 months

Implementation & Results

Following implementation of key recommendations:

  • Total Energy Savings: ~417,000 kWh annually
  • Cost Savings: ₹33–35 Lakhs per year
  • Reduction in CO₂ Emissions: ~340 tons annually
  • Improved system efficiency and reduced load fluctuations
  • Enhanced equipment life and reduced maintenance issues

Client Testimonial

“The energy audit by ELION provided us with clear, actionable insights. The implemented measures significantly reduced our energy costs and improved operational efficiency.”
— Plant Manager, LPG Bottling Facility

Why ELION for Energy Audits

  • Extensive experience in oil & gas and bottling plants
  • Certified energy auditors and advanced diagnostic tools
  • Strong adherence to ISO and OISD standards
  • Focus on ROI-driven recommendations
  • End-to-end support from audit to implementation

Conclusion & Call to Action

Energy audits are essential for LPG bottling plants to control operational costs and improve sustainability.

By identifying inefficiencies and implementing targeted solutions, organizations can achieve significant savings while ensuring compliance and reliability.

👉 Schedule your Energy Audit with ELION today

  • Explore our Energy Audit Services
  • Learn more about Compressed Air Audit Solutions
  • Discover Power Factor Improvement Services

FAQs

What is an energy audit of an LPG bottling plant?

It is a systematic evaluation of energy consumption across systems like compressors, pumps, and lighting to identify savings opportunities.

How can LPG plants reduce energy consumption?

By optimizing compressors, using energy-efficient motors, improving power factor, and upgrading lighting systems.

Which standards guide energy audits?

ISO 50002 and OISD guidelines are commonly followed for structured and reliable energy audits.

What are typical energy-saving measures?

Compressed air leak reduction, VFD installation, LED lighting upgrades, and heat recovery systems.

How is ROI calculated in an energy audit?

ROI is calculated based on investment cost versus annual savings, typically expressed as payback period.

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