Energy AuditData-Driven Energy Consulting

We handle mandatory energy audits for sites consuming 2,000 toe or more per year.

Target equipment
Energy-intensive equipment, including boilers · air compressors · chillers · pumps · fans · process heat sources
Scope of work
Field measurement → Equipment-level consumption analysis → Simulation → AI optimization → Improvement measure review → Investment return analysis
Deliverables
Energy audit report · Estimated savings by equipment · Investment cost/payback period by improvement measure · Greenhouse gas emissions reduction calculation report
Duration
To be agreed based on site size
Process

Process

01

MEASURE · Field Measurement

We measure power, pressure, temperature, flow rate, and operating hours for each piece of equipment.

02

ANALYZE · Consumption Analysis

We identify inefficiencies in equipment-level consumption and operating patterns.

03

SIMULATE · Simulation

We transfer operating conditions to a digital model and calculate the impact of changing them.

04

AI OPTIMIZE · Optimization

Our proprietary AI compares scenarios to find the operating conditions that use the least energy.

05

VERIFY · Verification

We comprehensively verify energy savings, emissions reduction, investment cost, and payback period.

Why it works

Before making a change,
we run it first.

Before modifying the equipment, we test different conditions in a digital model.
It is the surest way to avoid poor investment decisions.

These are our project counts by organization. Representative projects are shown below.

Korea East-West Power (EWP)0Energy Audit Support for SMEs
Ulsan Technopark0Energy Audit Program
Chungnam Institute for Industry-Academia Convergence0Energy Audit
Statutory · Carbon Neutrality0Mandatory energy audits 21 · Facility investments 67
2024.02D○ Precision Co., Ltd.
Estimated savings
103.63 tCO₂ · 50 toe
Estimated annual cost savings
KRW 40.6 million
2024.06M○ Industrial Co., Ltd.
Estimated savings
149.554 tCO₂ · 72.147 toe
Estimated annual cost savings
KRW 52.928 million
2024.06H○ Heavy Industries Co., Ltd.
Estimated savings
45.195 tCO₂ · 21.802 toe
Estimated annual cost savings
KRW 19.841 million
2024.11H○ Corporation
Estimated savings
1,013.16 tCO₂ · 488.732 toe
Estimated annual cost savings
KRW 379.91 million
2024.12M○J Glove Co., Ltd.
Estimated savings
53.778 tCO₂ · 25.89 toe
Estimated annual cost savings
KRW 16.654 million
2025.03B○sto Korea
Estimated savings
1,085.7 tCO₂ · 523.74 toe
Estimated annual cost savings
KRW 481 million
2025.04Bia○T Co., Ltd.
Estimated savings
83,296 tCO₂ · 40,182 toe
Estimated annual cost savings
KRW 5,316 million
2025.04A○C Co., Ltd.
Estimated savings
134.56 tCO₂ · 65.01 toe
Estimated annual cost savings
KRW 55 million
Estimated savings, 8 representative projects0
Estimated savings, 8 representative projects0
Estimated annual cost savings, 8 representative projects0
Field

Field Measurement

Field measurement — We measure steam pipe flow using an ultrasonic flow meter.
Field measurement — We measure steam pipe flow using an ultrasonic flow meter.
Power analysis — We record equipment-level power consumption patterns at the distribution panel.
Power analysis — We record equipment-level power consumption patterns at the distribution panel.
Scope

From field measurement
to investment decisions

01

Energy Consumption Measurement

We directly measure the power, steam, and fuel consumption of each piece of equipment on site.
We use actual operating data, not drawings or nameplate values.

02

Loss Identification

We analyze operating patterns and load factors to pinpoint where and how much energy is being lost.

03

Advance Verification of Improvement Measures

We change conditions in a DWSIM digital model to calculate cost savings in advance.

04

Optimal operating conditions

Our proprietary AI compares scenarios to narrow down practical operating conditions.

05

Investment Return Quantification

We quantify energy savings, investment cost, and payback period to support decision-making.

06

Greenhouse Gas Emissions Reduction Calculation

We provide an emissions reduction calculation report that can support regulatory compliance.

Grade

Required Days by Audit Grade

Audit grades are determined by annual energy consumption.
The required days and personnel are set for each grade.
Find your consumption in the table to see the required audit duration for your factory.

Annual energy consumption and required days by audit grade
GradeAnnual Energy Consumption (toe)On-site Work (days)Report Preparation (days)Subtotal (days)PersonnelTotal Effort (person-days)
A5200,000 or more2921504200
A4100,000 to under 200,0002518434172
A350,000 to under 100,0002115364144
A220,000 to under 50,0001712294116
A110,000 to under 20,00014923492
B5,000 to under 10,00011819357
C2,000 to under 5,0008513339

Swipe the table horizontally. The required audit duration is shown on the right.

The audit institution determines the audit fee based on the required days and personnel. The fee consists of direct labor costs, direct expenses, overhead, and technical fees, and may vary by institution.
If more days or personnel than the standard are required, additional costs are determined by agreement.

Difference

What makes AERO-ONE different

Conventional approach
  • Primarily site walkthroughs and visual inspections
  • Estimates based on equipment nameplates and design values
  • Improvement measures based on experience
  • Results known only after implementation
  • Ends with report submission
The AERO-ONE approach
  • Field measurement with 24 types of instruments
  • Calculations based on actual operating data
  • Cost savings calculated first for each condition in a DWSIM model
  • Quantified energy savings and payback period before investment
  • Consistent criteria through post-improvement verification
Deliverables

Audit Deliverables

REPORT0 copyEnergy Audit Report
Complete audit results by equipment
SAVINGBy EquipmentEstimated savings calculation
Presented with priorities
INVESTBy Improvement MeasureInvestment Cost · Payback Period
Basis for implementation decisions
GHGtCO₂Greenhouse Gas Emissions Reduction Calculation Report
Basis for regulatory compliance

The audit does not end with a report;
it sets the order of what to change first.

ENERGY AUDIT — AERO-ONE
FAQ

Frequently Asked Questions

How do I determine whether our site is subject to a Mandatory Energy Audit?
Sites consuming 2,000 toe or more per year are subject to the audit. If your total consumption is unclear, send us your electricity, gas, and fuel usage records, and we will first confirm your eligibility.
How long does an audit take?
It depends on the site size and quantity of equipment. We confirm the schedule after reviewing the field measurement schedule and equipment list.
Do we need to stop production?
Most measurements are taken while equipment is operating. Because data under normal operating conditions is essential, we generally measure during operation.
Are the savings guaranteed if we implement the audit recommendations?
The report's estimated savings are calculated from measured data and simulation results. Actual savings vary with operating conditions, so after improvements we verify them using the same criteria and identify any difference.
Can we use another contractor for the improvement work after the audit?
Yes. We prepare the audit report in a format that is independent of any specific contractor.