10/14/2025
Delta and SKYTECH’s Energy-Saving Pump System
Saves Taiwan’s Leading Oil Company NT$2.1 Million Annually
As electricity fees continue to soar and IE4 / IE5 motors are becoming mandatory across countries, global manufacturers face pressing needs to optimize investments in energy efficiency and equipment efficiency upgrades. In Taiwan, a carbon fee program effective from 2025 further pushes companies to take actions for energy saving.
The common approach would first focus on upgrading main equipment, and then extending to pumps and motors. For end users, beyond evaluating the return on investment, system stability and real-time support after upgrades are equally crucial. For system integrators, maximizing performance and energy efficiency depends on appropriate equipment selection, high integration levels, and comprehensive technical support.
A prime example is an energy-saving project for Taiwan’s leading oil company, which was initiated in 2019, and started to cover pumps and motors upgrades in 2025. The project faced three key challenges: the use of IE2 induction motors; 1,020 HP of pump capacity that exceeds actual needs of 230 HP—nearly 80% waste; and lack of variable frequency control to automatically adjust speeds based on load.
To address these issues, Delta collaborated with SKYTECH Science & Technology Engineering to develop an integrated solution mobilizing load reconfiguration, permanent magnet motors and variable frequency control. The solution emphasizes the integration of drives and motors to achieve optimal balance between energy savings and investment return. SKYTECH handled system diagnostics, energy simulations, and construction planning. In conjunction, Delta provided end-to-end technical services from product selection consulting, pump testing, system simulation, to on-site technical support and commissioning.
Technical Advantages Enabled by Delta’s MSI Motors and C2000 Plus Motor Drive
For equipment selection, the IE2 inductor motor and the fixed-frequency system were upgraded to Delta’s PMa Synchronous Reluctance Motor MSI and High-Performance Vector Control Drive C2000+. Tommy Hsieh, general manager of SKYTECH, highlighted several key advantages of Delta’s solution. First is the high performance and energy efficiency of the IE4 / IE5 MSI Motors, which are ideal for mid to low loads operation throughout the distinct seasonal changes in Taiwan. Second, the self-developed MSI Motor & the C2000+ Drive enable a high level of integration and support built-in parameters settings for quick configurations with just one click.
James Tseng, product manager of Delta’s Motor Drive Solution shared that Delta’s solution provided quick configuration modules and a database for 20+ complex parameters to allow optimal performance with a streamlined tuning process.
Hsieh continued to the third advantage of Delta’s solution, which is the impressive results of energy saving. The actual data showed that almost 50% of energy was saved in total—much higher than most energy saving projects with an average of 20~30%. In addition to the equipment, Delta delivered within 3 months, and provides a three-year warranty and fast technical support to ensure the seamless operations of the customer’s infrastructure.
“This was our first motor energy-saving project with Delta, and the process was smooth and efficient,” said Hsieh. “The excellent services and solutions of Delta, covering from equipment selection, system simulation, solution testing, training and maintenance support, allow us to meet the customer’s rigid requirement in system reliability.”
Simultaneous Optimization of Energy Management and Operation Performance
The solution achieves an overall energy savings rate of 48%~51.6%, i.e. NTD 2.1 million saved per year. Among equipment updates, 30% of electricity consumption was saved from chillers, and 20% from pumps and motors. The results are equivalent to reducing around 271 tCO2e emissions—almost the amount captured by 100 mature trees per year.
The solution also streamlined system configurations to reduce maintenance costs and enhance operation resilience. By cutting the pump power from 1,020 HP to 230 HP, exceeding capacities are reduced by 80%. This lowers both the costs of maintenance and electricity consumption. The project was selected as a successful case by Taiwan’s Energy Administration, Ministry of Economic Affairs. Since a public demonstration in June 2025, the project has attracted more than 130 industry professionals to visit on site.
Benefits of Delta’s Pump Energy-Saving Solution:
- High Level of System Integration: Delta’s PMa Synchronous Reluctance Motor MSI and High-Performance Vector Control Drive C2000+ are engineered for optimal compatibility. The MSI Motor provides configuration modules and a database to accelerate the tuning of 20+ complex parameters
- Energy-Efficient IE5 Motors: The MSI Motors reach IE4–IE5 efficiency, with superior performance at medium to low loads and are perfect for Taiwan’s variable climate. Compared to induction motors, equivalently powered MSI motors are typically 1–2 frame sizes smaller, reducing energy consumption by 18–33%.
- End-to-End Service with Effective Support: Delta delivers within 3 months and provides a 3-year warranty with rapid maintenance services, ensuring uninterrupted operation of critical infrastructure. Comprehensive technical services include product selection, pump testing, system simulation, on-site technical support, and commissioning adjustments—all ensuring stable system performance under real-world loads.