To increase and improve energy efficiency to conserve resources, we not only continue to purchase the high efficiency motor (IE3) but also replace the lighting equipment to energy-saving lamps. Moreover, we replaced some of the diesel fuel forklifts with electric forklifts and purchased air compressor to reduce air pollution and improve the work environment. Furthermore, to ensure we have a sound energy conservation management system, we were accredited with ISO 50001 and updated ISO 14064 certifications for both Shalu and Taichung Harbor plants in 2020.
Electricity is our main source of energy, and our total electricity consumption in 2020 was 39,923KWh (including Fwusow Hsin and Charming Food). The energy intensity for 2020 was 21.654 (GJ/ NT$million), in comparison to 22.546 (GJ/ NT$million) from 2019, a reduction of 4.12%.
Even though our 2020 annual production increased and caused an increase of electricity consumption, we continued to replace the existing energy-consuming equipment at our plants and we also used energy efficiency performance indicator to gauge our use of electricity and natural gas. Thus, the energy consumption from each plant was still under control. The increase of the electricity consumption was due to the increase of production at both Shalu and Taichung Harbor plants and the year round operation of aquaculture farms in Xuejia.
Besides the use of electricity, we also use natural gas and diesel fuel at our plants. To reduce the environmental impact, we use natural gas-fired boilers, and the total use of natural gas at all 4 plants in 2020 was 3,642 km3.The diesel fuel was mainly used for delivery trucks and forklifts. The use of diesel fuel for 2020 was 450.749 kL, in comparison to 517.26 kL from 2019, a reduction of 66.511kL, 12.85%, mainly due to the replacement with 6 electric forklifts and one bulk truck.