How Processing Factories in Pekan Optimize Power Bills

Step 1: Start with a Comprehensive Energy Audit

A thorough energy audit is the foundational step for Pekan factories aiming to cut power bills. Auditors from Tenaga Nasional Berhad or private firms analyze historical utility bills, identify peak demand periods, and pinpoint wasteful equipment. For example, a palm oil mill in Pekan discovered that its aging refrigeration units consumed 18% of total electricity during peak hours. By benchmarking against industry baselines—typically 0.25 kWh per kg of processed fruit—factories set measurable reduction targets. The audit also reveals opportunities for load shifting and equipment upgrades, ensuring subsequent investments target the highest-return areas. This data-driven approach avoids guesswork and yields first-year savings of up to 12% on electricity costs.

Step 2: Shift Operations to Off-Peak Hours

After identifying peak hour energy usage, factories reschedule high-power processes to off-peak times—typically 10 PM to 8 AM weekdays and all weekends under TNB’s time-of-use tariff. For instance, a food processing plant in Pekan moved its grinding and mixing operations to the night shift, reducing peak demand charges by 30%. The tariff differential in Peninsular Malaysia can be as high as 40% between peak and off-peak rates. Factories often install integrated control systems to automate start times for chillers, blowers, and conveyors. This step requires minimal capital but delivers immediate monthly savings. Some facilities combine load shifting with demand response programs, earning rebates for voluntarily reducing consumption when grid stress is high.

Step 3: Upgrade to High Efficiency Motors

Electric motors account for 60–70% of industrial electricity consumption, making upgrades a high-impact measure. Pekan processing factories replace old standard-efficiency motors (IE2 or lower) with IE4 premium efficiency models. For example, a rubber processing facility replaced 20 motors of 50 kW each, cutting per-motor losses by 15% and achieving a payback period of 18 months. Variable frequency drives (VFDs) are often paired with new motors to match speed to load, especially on pumps and fans. The initial cost is offset by government incentives under the MBIP (Menteri Besar Incorporated Pahang) energy efficiency fund. Maintenance practices also improve because premium motors run cooler and last longer, reducing downtime costs.

Step 4: Install Solar Photovoltaic Panel Systems

Harnessing solar energy is increasingly viable for Pekan factories due to abundant sunlight (average 5.5 peak sun hours per day). Many facilities install rooftop solar photovoltaic systems sized between 100 kWp and 500 kWp. A cocoa processing plant in the Malaysia-China Kuantan Industrial Park (MCKIP) installed a 250 kWp array that meets 20% of its daytime load. Under the Net Energy Metering (NEM 3.0) scheme, excess power is exported to the grid at a one-to-one offset rate, effectively slashing the bill for unused credits. The capital cost is approximately RM 2.80 per watt, and with accelerated capital allowances, the ROI period is around 5 to 6 years. Solar also reduces reliance on peak grid power during hot afternoons.

Step 5: Optimize Factory Compressed Air Systems

Compressed air is often the most wasted utility in processing plants. Pekan factories conduct leak detection audits using ultrasonic sensors, revealing that an average plant loses 25% of generated air through leaks. A poultry processing facility fixed 15 identified leaks in its distribution network, saving RM 4,500 annually. Another key optimization is reducing system pressure from 8 bar to 6 bar where process requirements allow, cutting energy consumption by 10% per 1 bar reduction. Factories also install energy-efficient air compressors with heat recovery units that redirect waste heat for space or water heating. Proper filtration and drying prevent moisture damage and further improve efficiency, extending equipment life.

Step 6: Monitor Power Factor Penalty Charges

Power factor penalties add hidden costs to Pekan factory electricity bills. TNB charges a surcharge when power factor drops below 0.85, and factories can face up to a 3% penalty on the total bill. A palm kernel crushing plant in Pekan installed automatic capacitor banks that maintain a power factor of 0.92, eliminating monthly fines of RM 2,000. Monitoring systems track real-time power factor and switch capacitor stages as motor loads vary. Factories also check for harmonic distortion from VFDs, which can degrade power factor further. Simple corrective measures like installing series reactors or active harmonic filters ensure compliance and avoid wasted expenditure. Regular monthly reviews maintain optimal readings.