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Energy-efficient and eco-friendly equipment

In addition to continuously promoting environmental protection and energy conservation policies, we have been encouraging all units to use energy-efficient and eco-friendly materials in recent years. These materials include energy-efficient devices (e.g., inverters, high-performance IE3 motors, anti-explosion LED lighting fixtures, aircon chillers, UPS) and ecolabel products (e.g., energy-efficient and eco-friendly IT equipment).

In 2024, the reported amount for green procurement on the Ministry of Environment's Green Lifestyle Information Platform was NT$33.82 million.

Energy Conservation Programs

2024 Energy Conservation Programs

No. Program Category Energy Saved Carbon Reduced
(metric tons of Co2e/year		 Investment Amount (NT$1,000)
1 Steam cooler replacement LNG Saving 145,200 cubic meters 301.7 51
2 Steam line insulation replacement LNG Saving 188,179 cubic meters 391.0 4,000
3 Reactor pressure reduction Electricity Saving 56,450 kWh 26.8 44
4 Cooling line maintenance (chiller energy saving) Electricity Saving 113,256 kWh 53.7 4,000
5 CBC plant shut down, chilled water supplied by other means Electricity Saving 4,057,317 kWh 1,923.2 44
6 Reactor pressure reduction Electricity Saving 423,835 kWh 200.9 44
Total LNG Saving of 333,379 cubic meters
Electricity Saving of 4,650,858 kWh 		2,897 8,183

Note 1: Carbon emission factor of electricity as 0.474 metric tons of CO2e/MWh.

Note 2: Source: Based on the 2024 Report on the Annual Energy Saving Audit System of Energy Users of the Energy Administration, with annualized carbon reduction benefits counted directly in the year of implementation, without dividing months and across-year calculation。

Note 3: Items 1 and 2 calculation method: Calculate LNG savings based on assumed steam savings and operating time.

Note 4: Items 3 and 6 calculation method: Calculate energy savings based on the operating current values and operating times before and after adjusting the operating pressure of the secondary compressor.

Note 5: Item 4 calculation method: Calculate energy savings based on the actual measurement difference of the equipment before and after the improvement and the operating time.

Note 6: Item 5 calculation method: Calculate energy savings based on equipment specifications and the time the production line is idle

2025 Energy Conservation Programs and Estimated Targets

No. Program Category Energy Saved Unit Carbon Reduced (metric tons of CO2e/year) Investment Amount (NT$1,000)
1 Addition of modifier injection points for secondary compressor inlet engineering for B Line at the Manufacturing Department I Electricity Saving 37,729 kWh 18 100
2 Adjustment of B Line LDV valve to reduce the loading of the secondary compressor Electricity Saving 1,045,419 kWh 496 4.4
3 Replacement of cooling tower fan materials Electricity Saving 79,680 kWh 38 200
4 Upgrade of the air compressor at the Manufacturing Department II Electricity Saving 71,784 kWh 34 690
Total Electricity Saving 1,234,612 kWh 585 994.4