Case Study
A Cement Manufacturer Reduced Energy Bills with Storage & Peak Shaving
Project Overview
To meet sustainability goals and offset rising energy costs, ADVANCED-TEK SYSTEMS, a major cement manufacturer, deployed a 3.06 MWh battery energy storage system (BESS) at its Changbin plant. The system was designed to shift energy use to off-peak hours, reduce contracted demand, and integrate seamlessly with existing site operations.
By charging at night when electricity is inexpensive and discharging during the day, the plant now saves an estimated NT $11 million (~US $344,000) annually in energy and capacity payments. With a projected five-year payback period and proven safety through immersion cooling, this installation provides a scalable model for large industrial users seeking to enhance cost efficiency, sustainability, and energy resilience.
Location
Lukang, Changhua County, Taiwan
Application
Peak Shaving, Time-of-Use (TOU) Optimization, Capacity Charge Reduction
Objective
To reduce capacity payments, lower peak demand charges, and optimize time-of-use energy consumption while enhancing site sustainability and safety.
Battery Capacity
3.06 MWh
Product
Etica Legion C20
Challenge
Solution
Etica deployed a 3.06 MWh, 20-foot battery energy storage cabinet paired with a 727 kW Fimer PCS to reduce electricity costs and capacity payments without impacting cement production. The system was integrated with existing site infrastructure by FEMC and Etica to ensure seamless operation. It was programmed to:
Charge during off-peak hours when electricity prices were low
Discharge during peak periods to offset high demand charges and reduce contracted load
Support compliance with Taiwan’s Large Electricity User Agreement by lowering annual capacity payments
Enhance safety and reliability with immersion cooling technology and robust system integration
This solution provided ADVANCED-TEK with a reliable, automated tool to optimize time-of-use energy consumption while maintaining operational continuity.
Results
The BESS system delivered significant cost savings and operational benefits:
NT$3,000,000/year (~US $93,750) saved through time-of-use (TOU) optimization by charging at night and discharging during peak hours
NT$8,000,000/year (~US $250,000) saved in reduced capacity payments under the Large Electricity User Agreement
Total annual savings: ~NT$11 million (~US $344,000)
Payback period: ~5 years
Safety: Passed inspections in April 2025, confirming the reliability of the immersion-cooled system
These savings were achieved without any disruption to cement production, demonstrating the effectiveness of automated peak shaving and capacity charge reduction with energy storage
Products
Fire Safe Energy Storage Solutions
Legion C20
Power Cabinet
Guardian Outdoor
SAFE. EFFICIENT. Resilient.
Cut Energy Costs Without Compromising Safety
Build resilience, cut operating costs, and meet compliance requirements with battery storage designed for safety, efficiency, and long-term performance.
