Climate Change and Resource Utilization
In response to the impacts of global climate change, ECOVE assesses risks and opportunities arising from climate change for the three core business activities. We regularly identify sources of risk and the scope of their impacts, and establish various responsive procedural standards to lower the operating impacts from the risks as well as to prevent operator accidents.
▼ Climate-related Risk Analysis for Energy from Waste (EfW)
▼ Climate-related Risk Analysis for Renewable Energy
Energy from Waste (EfW)
Waste Treatment Performance
Currently, ECOVE ESC manages and operates seven waste to energy plants. The total waste received by these plants amounted to 1,941,709 metric tons in 2019. As the total waste input for 24 waste to energy plants throughout Taiwan was 6,530,079 metric tons in 2019, ECOVE ESC accounted for 30% of all waste input in Taiwan. In particular, the volume of general waste amounted to 1,530,323 metric tons, accounting for 79% of all waste input in ECOVE ESC, while the volume of general industrial waste amounted to 411,387 metric tons, accounting for 21% of all waste input in ECOVE ESC. According to the 2020 statistical data from Waste Management Office of Environmental Protection Administration (EPA), Taiwanese citizen produces approximately 1.138 kg of waste on a daily basis. Therefore, ECOVE ESC services approximately 3.68 million people as well as receives and treats waste from 16,500 institutions.
▼ Total Amount of Waste Input and Treatment in ECOVE ESC's Waste to Energy Plants (in Metric Ton)
Besides Taiwan, the general waste throughout Macau is treated by our subsidiary, SINOGAL, which serves a population of approximately 670,000. The total amount of waste input in waste incinerators operated and managed by SINOGAL amounted to 572,577 metric tons in 2019. In particular, general waste amounted to 429,313 metric tons, accounting for 75%, while general industrial waste amounted to 143,264 tons, accounting for 25%. Based on the average data from the past five years, the annual average total input was 538,249 metric tons, while the total amount of treatment was 529,545 metric tons.
▼ Total Amount of Waste Input and Treatment in SINOGAL's Waste Incinerators (in Metric Ton)
Power Generation and Power Retail
Cumulatively, the waste to energy plants operated by ECOVE ESC has sold 932,417 mWh to the power company in 2019. In other words, approximately 82% of the total power generated can be transmitted to Taipower Company's power grid, while the remaining 18% would be used for operation by the waste to energy plants. Based on data from Taipower Company, the average household power consumption in Taiwan and Macau were 292 kWh and 430 kWh per month, respectively, in 2019. Therefore, we could supply the year-round general power consumption for approximately 266,100 and 33,900 users in Taiwan and Macau respectively.
The reduction in carbon dioxide (CO2) emissions from our power output was calculated to be approximately 800,000 metric tons of CO2e, equivalent to reducing approximately 320,000 metric tons of coal combustion (based on the calculation that 1 metric ton of coal combustion produces 2.5349 metric tons of CO2e), and also equivalent to the volume of CO2 that can be absorbed by 2,059 Daan Parks in a year (based on the calculation that Daan Park can absorb 389 metric tons of CO2 in a year). Moreover, based on the 2010 research, the Forestry Bureau, Council of Agriculture had estimated that the fixed volume per hectare of forest can absorb 9.0 metric tons. Therefore, our 2019 performance was equivalent to planting approximately 80,912 hectares of forest.
▼ Power Generation and Power Retail in Energy from Waste Plants in 2019
Autonomous Organizational Inventories
ECOVE ESC regularly conducts organizational greenhouse gas autonomous inventories for the incineration plants it operates. With 2014 set as the base year, the amount of waste treatment in each of its incineration plants in 2019 was lower than that in the base year (except for Taoyuan Airport Plant, whose GHG emissions increased with an increase in the amount of waste treated), and the GHG emissions have all decreased accordingly. On average, 22% of GHG emission has been reduced from each plant. For primary sources of emissions, we have set the annual target of reducing total CO2 emissions by 1% from the base year.
▼ GHG Emission Reduction Results in Incineration Plants Operated by ECOVE ESC (Metric Ton/CO2e)
The total amount of waste managed by ECOVE's subsidiary, ECOVE Waste Management Corp. (ECOVE WMC) in 2019 was 312,920 metric tons, accounting for 29% of all waste that was outsourced to private institutions from domestic large-scale municipal waste incineration plants. To effectively manage the quality of waste, ECOVE WMC monitors the source of the waste and undertakes onsite coaching and visit to understand their operating processes, waste-producing qualities, quantities, and storage. ECOVE WMC also advocates for environmental protection laws and key points of waste input management at the incineration plants related to waste outsourced treatment. This is to ensure that the sources can provide waste that meets the operating requirement of incineration plants to stabilize the treatment efficiency of the incinerator plants and to prevent processing risks.
▼ Total Amount of Waste Managed by ECOVE WMC ( in Metric Ton )
To prevent emissions of air pollutant from becoming environmental impacts from waste incineration, continuous monitoring stations have been installed at exhaust-emitting tubes at all incineration (waste to energy) plants operated by ECOVE ESC pursuant to the laws. Seven items are continuously monitored, including exhaust gas flow rate, oxygen content, sulfur oxides, nitrogen oxides, hydrogen chloride, carbon monoxide, and opacity. Information from the exhaust emission monitoring system is uploaded to the Environmental Protection Administration immediately and available for the public to search. Currently, information on Keelung Plant, Southern Taoyuan Plant, Miaoli Plant, Houli Plant, Wurih Plant, and Tainan Plant are available. In addition, onsite scheduled detection is conducted monthly or quarterly, and items of which include sulfur oxides, nitrogen oxides, hydrogen chloride, carbon monoxide, particulate pollutants and dioxin.
Not only does ECOVE ESC's operating competencies allow high levels of waste utilization, but we also strive to comprehensively control the quality of various pollutants emitted during waste incineration at the waste to energy plants. The amount of urea used per unit of waste increased in 2019 compared to that in the recent five years. The main reason for the increase was that we conducted a test to reduce NOx emissions by increasing the amount of urea used per unit of waste (used in selective non-catalytic reduction, SNCR) to meet the EPA's air pollution reduction target by 2024. We will continue to study the improvement plans for air pollution that allow us to reduce air pollution and the use of urea at the same time. In terms of unit consumption rate of slaked lime, the consumption has increased slightly due to the increase in the lower heating value of the waste. In the future, we will increase the efficiency of chemical utilization and decrease the chemical consumption per ton of waste.
Circular and Low-carbon Economy
In line with the government's sustainable development policy, ECOVE helps to commercialize and popularize the emerging recycle and reuse technologies. We help to reduce costs by enhancing the operating efficiency of machinery. To grasp the initiative of new business development, a "Technology R&D Team" has been set up in ECOVE's Market Development Department, which evaluates various recycle and reuse technologies. Therefore, we have set PET bottle recycling, reclaimed water, waste solvent recovery, biomass, and waste acid and alkali recovery as key development areas.
BoReTech Co, Limited, an ECOVE reinvestment company, has a series of recycling and cleaning system manufacturing and cleaning solution planning competency specifically for PET bottles, which helps to build a highly effective recycling and cleaning equipment. To provide well-rounded solutions for customers, we have pioneered the industry in launching B2B PET bottle recycling and cleaning production line and chemical fiber-grade PET bottle recycling and cleaning production line. Through user-oriented interface and professional whole plant planning, we develop products with stable function and decent quality, significantly reducing the production cost of PET bottle recycling and cleaning facility and reducing production loss while increasing the quality of the products. In the face of domestic and international legislation to ban plastic products, this technology of re- manufacturing polyester into functional fiber can realize the concept of resource cycling.
To enhance resource cycling usage rate and achieve sustainable living environment, ECOVE Solvent Recycling Corp. was established in 2018 to provide purification and reuse of waste solvents. This helps waste solvents to re-enter the market supply chain as industrial raw materials, thus reducing the consumption of petroleum raw materials and resources from this planet. ECOVE Solvent Recycling Corp. treated approximately 1,400 tons of waste solvents in 2019. It continued to improve treatment technologies and adopted distillation, which generated approximately 60 metric tons of carbon dioxide emissions, a decrease of 973 metric tons of carbon dioxide emissions (equivalent to carbon dioxide emissions absorbed by three Daan Parks) from 1,033 metric tons of carbon dioxide emissions generated by incineration.
ECOVE expects to recycle approximately 6,700 tons of waste solvents every year in the future and concentrates them into industrial-grade raw materials to be returned to the market supply chain. Not only will this greatly reduce losses of resources from earth, but it will also reduce carbon dioxide emissions by approximately 4,900 metric tons every year. In the second half of 2019, we replaced heavy oil fuel with natural gas, which reduced carbon dioxide emissions by approximately 59 metric tons according to the calculations.
Driven by the African swine fever and a trend in circular economy, ECOVE has integrated relevant technologies based on the response characteristics of biomass to assist the government of Macau with food waste recycling since 2018. In 2019, we treated about 422 tons of food waste to make organic fertilizers, reducing CO2 emissions by about 108 metric tons 2 (treating food waste from incineration to compost reduced carbon emissions by 256 kg CO2/ton, (422*256)/1000=108 metric tons; source: Recycling Website of Department of Environmental Protection, New Taipei City at https://crdrubbish.epd.ntpc.gov.tw/dispPageBox/RRN/RCCP.aspx? ddsPageID=RCCFSR1). Organic fertilizers are used to plant flowers and trees for ornamental purposes, realizing a circular economy.
ECOVE's water resource projects encompass three types of key works, including wastewater treatment, river rehabilitation, and water resource reclamation. Primary treatment, secondary treatment, and advanced treatment, as well as ecological engineering, are respectively adopted to remove pollutants from water and further the reuse of water resources.
▼ Climate-related Risk Analysis for Renewable Energy
▼ Wastewater Treatment Volume in 2019
Besides continuing to focus on the development of solar power industry, with strong support from parent company, ECOVE (CTCI), ECOVE SEC is also committed to the installation and Operations and Management of solar power systems with solid engineering planning and execution competency, as well as high-quality manufacturing competency. As of 2019, many project installations were completed with major partners (THSR, Kaohsiung MRT, Taipei MRT, Civil Aeronautics Administration, Port of Kaohsiung Taiwan International Ports Corporation, Ltd., and Tainan City Government and more). Results include: ground types: 14 modules at 19.5 MWp, rooftop types: 36 modules at 35.8 MWp, and floating types: four modules at 4.5 MWp. Cumulatively, the total installation capacity from the 54 modules amounts to 59.8 MWp.
In addition, ECOVE Solar Energy Corporation proactively participated in the green energy certification in the United States. It became Taiwan's first solar photovoltaic facility investor to participate in and obtain the certification of Green-e® Energy. Through impartial third-party certification, ECOVE Solar Energy Corporation will continuously improve the efficiency and quality of renewable energy, so as to provide highly efficient and quality renewable energy, making specific contributions to environmental protection.
▼ Total Power Generation from ECOVE SEC and Subsidiaries Each Year ( including Lumberton )