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Configure solarA professional energy audit is the single most powerful first step for factories, offices, and commercial buildings to slash electricity costs by 20–35%. Learn ASHRAE levels, GITA incentives, real Malaysian case studies, and how to find a certified MAESCO auditor.
Updated March 2026
An energy audit is a systematic examination of how energy is consumed in a building or facility. A certified auditor analyses your utility bills, inspects equipment, measures energy flows, and identifies opportunities to reduce waste — with hard numbers attached to each recommendation.
The internationally recognised ASHRAE standard defines three audit levels. Malaysian industrial clients typically require Level 2 or Level 3 to qualify for GITA and GreenTech incentives.
| Level | Name | Typical Cost |
|---|---|---|
| 1 | Walk-Through Survey | RM 2,000 – RM 5,000 |
| 2 | Energy Survey & Analysis | RM 15,000 – RM 50,000 |
| 3 | Detailed / Computer Simulation | RM 50,000 – RM 150,000 |
Malaysia's tropical climate, combined with aging infrastructure and a lack of sub-metering, creates the perfect storm for energy waste. Most commercial buildings are leaking money through four major channels.
Systems designed for worst-case load run at full capacity even when occupancy is 40%. No VFD, no demand control ventilation, no setback scheduling. HVAC alone accounts for 40–50% of commercial energy use in Malaysian buildings.
T8 fluorescent and metal halide fixtures still common in Malaysian factories built pre-2010. LED retrofit delivers 50–70% lighting energy reduction with 2–3 year payback, often without structural changes.
Without sub-meters, energy managers cannot identify which production lines, floors, or equipment types are driving costs. Buildings without metering typically waste 10–20% more than metered peers.
TNB charges RM 89.27/kW for peak demand. A factory peaking at 600kW pays RM 53,562/month in MD charge alone — even if that peak lasts only 30 minutes. Load staggering and demand controllers eliminate this waste.
Maximum Demand: The Hidden Cost Nobody Talks About
Under TNB's MD tariff, even a 30-minute demand spike sets your MD charge for the entire month. A 600kW factory peak costs RM 53,562 in MD charges alone — every single month. Load staggering and demand control systems can eliminate 15–25% of industrial bills with no new equipment.
Learn how to reduce your MD chargeEnter your monthly electricity bill and building type to estimate potential annual savings and payback period for an energy audit.
Estimates based on SEDA Malaysia benchmarks and Trexon project data. Actual savings depend on your specific equipment profile. Contact us for a detailed scoped proposal.
Three Malaysian buildings that completed energy audits through Trexon's partner network — with before/after electricity costs and implementation details.
Penang
Electronics Factory (35,000 sqft)
Before
RM 180K/mo
After
RM 126K/mo
Annual Savings
RM 648K/yr
ROI Period
28 mo
Key Measures
AHU optimisation alone accounted for 60% of total savings
Kuala Lumpur
Grade A Office Tower (12 floors)
Before
RM 95K/mo
After
RM 72K/mo
Annual Savings
RM 276K/yr
ROI Period
22 mo
Key Measures
LED + VSD combination delivered ROI in under 2 years
Selangor
4-Star Hotel (280 rooms)
Before
RM 220K/mo
After
RM 154K/mo
Annual Savings
RM 792K/yr
ROI Period
37 mo
Key Measures
Chiller replacement alone reduced HVAC energy by 42%
The Green Investment Tax Allowance (GITA) is one of Malaysia's most valuable — and underutilised — tax incentives. Companies investing in qualifying energy efficiency assets can claim 60% of capital expenditure as tax allowance, offsetting against 70% of statutory income.
60% Investment Tax Allowance on qualifying energy efficiency capital expenditure
Offset up to 70% of statutory income — significant cash tax savings for profitable manufacturers
Qualifying assets: chillers, VFDs, LED lighting, BMS, solar PV systems, heat recovery units
Can be claimed in full in Year 1 or spread over multiple years (unused allowance carries forward)
Available to Malaysian-resident companies — Sdn Bhd and Bhd. Not available to sole proprietors.
Audit report from a MAESCO-certified auditor is a mandatory supporting document for MIDA application
Applications are submitted through the Malaysian Investment Development Authority (MIDA) online portal. You will need: completed audit report from a MAESCO-certified auditor, equipment specifications and purchase invoices, SIRIM or equivalent certification for the equipment, and company tax registration documents.
Important: The energy audit must be conducted BEFORE equipment purchase to be eligible. Retrospective claims are not accepted.
GITA Example Calculation
MAESCO (Malaysian Association of Energy Service Companies) maintains a register of certified energy auditors in Malaysia. Not all auditors offer the same quality — here is what to verify before engaging.
A standalone energy audit saves you 20–35%. Trexon's combined solar and energy efficiency programme typically achieves 50–75% total electricity cost reduction by addressing both consumption reduction and on-site generation simultaneously.
RM100 Priority Site Visit
We review 12 months of TNB bills, identify the peak-demand profile, and assess roof/solar viability in one visit. The RM100 is fully credited when you proceed.
ASHRAE Level 2 Audit
Our MAESCO-certified partner conducts a full Level 2 audit with sub-metering, thermal imaging, and load profiling.
Combined Solar + EE Proposal
We model the combined impact of solar generation + efficiency retrofits on your TNB bill, showing exact ROI and GITA claim value.
Turnkey Implementation
Single contractor, coordinated installation, one point of contact. Solar, LED, VSD, and BMS all commissioned together.
Typical Savings Comparison
Typical range for Malaysian commercial/industrial buildings. Actual results vary.
Get a free 30-minute remote energy consultation with a Trexon specialist. We will review your TNB bills remotely, estimate your savings potential, and outline the right audit scope for your facility — at no cost.