Energy Conservation and Emissions Reduction
Upholding the energy policy: total participation, energy conservation, carbon reduction, and green production, by implementing the ISO 50001 energy management system, we achieve energy management and verify energy efficiency and the achievement of energy conservation targets of all sites. To achieve the 1% annual energy conservation target, we propose energy conservation programs every year, use high-performance cogeneration, build renewal energy equipment, optimize existing equipment, and combine smart systems to make constant innovation to optimize the performance in energy conservation and carbon reduction. We also set emerging environmental protection benchmarks to actively transform into a “new low-carbon & green energy paper company”.
We applied the ISO 50001 energy management system to the Paper Division in 2013 and then introduce it to the Container Box Division in 2015. The headquarters established a cross-department Energy Management Committee to ensure the actual energy saving performance through the measurement and verification of the management system. The Committee is also responsible for setting energy saving objectives, holding meetings to review energy consumption and energy saving development, and following up the performance of related projects. Also, different energy saving techniques are shared at the meeting to discover the opportunity to make improvement in energy saving, mitigate consumption of energy resources effectively, and allow the energy management to be developed towards the goals of continual improvement.
2020 CLC Energy Consumption
Energy Emission Intensity
Unit product energy consumption
Save Energy and Reduce Carbon Emission
Electricity and steam are mainly used in production equipment and communal systems of CLC. The Company utilizes the ISO 50001 management approach to compare the energy efficiency of all mills in order to maximize the operating efficiency of each equipment. In 2020, we invested NT$129.88 million in implementing 35 energy conservation projects in three main categories: process improvement, equipment improvement, and energy management. The energy conservation performance was significantly higher than the year before, with a unit product energy consumption reduced by 4.7%. Power conservation totaled 24,966,379 kWh (or 89,879 MJ). GHG reduction totaled 12,708 tCO2e. Energy cost saved about NT$54.13 million.
Supporting the nighttime price competition measure of Taiwan Power Company (TPC), Chupei Mill received a certificate of appreciation from the TPC for saving power over 1.8 GWh.
In response to the diversification of project development and increasing process complexity, for the effective and best use of energy, we constantly set energy conservation targets and actively support national energy conservation policies to achieve the goal of 1% annual average energy conservation for heavy energy user.
A total of 123 energy conservation projects were implemented to save power up to 42.277 GWh and reduce GHG emission up to 22,101 tCO2e. (2018–2020)
Performance table of energy saving and carbon reduction project
To encourage employees to demonstrate innovative energy conservation measures, plants with outstanding performance in environmental protection are awarded the “Excellent Plant of Energy Conservation” or “Special Award for Energy Alternative Efficiency.”
Through the smart use of the geographical characteristics of individual paper mills, CLC engaged in wind power generation in 2003 and implemented solar power generation facility at the Houli Mill and Taichung Harbor respectively in 2011 and 2019. The wind power generation facility in the ChuPei Mill was certified by the National Renewable Energy Certification Center in 2017, becoming the first paper mill in Taiwan acquiring RECs. The Mill acquired 1,595 RECs enabling it to supply electricity for 455 households in 2020, and have accumulated 9,309 certificates during 2017 and 2020 which equals to the annual electricity consumption for 2,380 households (calculated based on the monthly electricity consumption per household in 2019, 326 kWh, announced by the Taiwan Power Company.)
In the future, we will constantly purchase renewable energy and install renewable energy generation equipment at suitable sites, including the rooftop solar system at Yenchao Container Box Plant starting operations in 2021, the biogas generation system at Tayuan Mill, and the solar panels at Houli Mill in 2022, in order to achieve the goal of renewable energy installed capacity at 10% of the contract capacity, support renewable energy development in real action, and thereby mitigate the impact of climate change.
Comparing to the traditional generation system or boiler system, the cogeneration system possesses higher energy efficiency, and can provide stable energy while taking into account greenhouse gas reduction goals. It is one of CLC key policies to promote energy saving and carbon reduction. The Company has implemented four cogeneration systems at the Houli Mill and Tayuan Mill. In 2019, CLC got ahead in the industry and applied the intelligent management to the biofuel cogeneration boiler at Houli Mill. Through the optimal monitoring for boilers, CLC is able to extend the boiler maintenance period, achieve zero temporary failure, raise the operating rate of cogeneration boilers, and improve the generation efficiency. In the future, the intelligent management will be gradually promoted throughout the entire company, and CLC will be the model of intelligent energy saving in the industry. In 2021, the Company will add bio-energy cogeneration equipment at the Chupei mill to improve its power autonomy and cost competitiveness.
In Taiwan, 98% of energy relies on import. To enhance energy efficiency and reduce the dependency on fossil fuel, we actively develop various types of alternative fuels, such as using process residual materials to increase the quantity and improve the quality of alternative fuels with technology, in order to enhance the utilization rate of alternative fuels. In 2020, we began to use sawdust as the alternative fuel for the cogeneration system G1 at Houli Mill. In 2020 alternative fuels ratio was 7.23%, replacing 40,693 MT coal. However, as SRF use was reduced for the BFB boiler of Tayuan Mill, the alternative fuels ratio reduced by 1.99% from the previous year.
To progressively achieve the 18% utilization rate of alternative fuels in 2030 for sustainable development, we have invested over NT$2 billion in the biomass CFB boiler system (including peripheral equipment) at Chupei Mill. After commercial operation begins at the end of 2021, it can help consume more process residual materials from all CLC mills across Taiwan to enhance the utilization rate of alternative fuels and reduce coal consumption for carbon reduction.
Capacity of Renewable Energy Generation
Operation date: 2003
Operation date: 2011, 2019
Installed at Tayuan Mill in 2021-2,400 kW