Longchen P&P has introduced ISO 50001 international certificate at each plant throughout Taiwan Strait gradually since 2013, aiming to assist the organization establishing energy management system in order to achieve the goal of systemize energy management, obtain the substantial benefits of improving energy utilization efficiency, reducing energy costs and GHG emission.

  Power Consumption of Erlin Mill

Year	2016	2017	2018	2019	2020
Total power consumption (1,000 kWh)	192,180	271,283	269,926	260,706	260,962
Mean electricity consumption per ton of produced (kWh/ton)	473	450	424	402	393

Erlin Mill biogas recovery system The plant established biogas recovery system in 2013. In addition to reducing GNG emission, energy consumption can also be reduced. Anaerobic system for waste water treatment can covert the COD in waste water to biogas (methane gas) and collect and store by the recovery system. The system can produce 20,000 m3 per day. Biogas was sent to the cogeneration plant to be incinerated and recycled for power generation. An average of 16,000 kg coal consumption can be reduced per day, which is equivalent to CO2 reduction of 14,073 tons CO2e/year.