GHG management

Greenhouse gases emitted by human activities have already caused global warming and led to the threat on the sustainable development. Corporations actively to reduce the greenhouse gas emissions are not only to show a responsible image to the public but also able to reduce the operation costs from running the business. In order to investigate the amount of GHG emissions thoroughly and comply with the future regulations, Tatung voluntarily implements ISO14064-1 greenhouse gas management system into the factories. So far, San-Hsia Factory, Taoyuan Wires and Cables Plant, and Taoyuan 1st Plant carry out GHG inventory and get verified by third parties based on reasonable level of assurance every year. We will implement ISO 14064-1 at the headquarter and Tayuan Plant in the future. For the purpose of enhancing the ability to do greenhouse gas inventory in the factories, Tatung runs ISO14064-1 Internal Verification Class every year. We are expecting to have more well-trained employees through these classes and they are able to do the greenhouse gas inventory well and pass the verification by the third party in the future.
Due to the headquarter and Tayuan Plant have not implemented ISO14064-1, the GHG emissions (CO2, CH4, N2O, and scope 3 are not included) are calculated as follows: the amount of energy sources disclosed in previous paragraph multiplied by each emission factor. The GWP is based on IPCC, 2007 since 2016. The total GHG emission in 2019 was 26,723.72 tons CO2e (Figure 6.2-4) which is 3,943.68 tons CO2e (8.80%) reduction than in 2018. The emissions from diesel, LPG and diesel fuel oil were 1,900.50 tons CO2e, and from purchased electricity was 24,823.22 tons CO2e (Figure 6.2-5).

▲ GHG emissions of Tatung

Energy saving and GHG reduction

Global warming greatly increases the frequency of extreme weather events and directly causes impacts to the operation of a business. In order to fulfill corporate social responsibility and reduce operating costs, followed by Stage 1 energy reduction target, Tatung proposed Stage 2 energy reduction target in 2019: the energy intensity per product in 2023 will be reduced by 6% than in 2018 (baseline year).

To achieve the target, we have implemented ISO 50001 in the factories to sharpen up company's energy performance. So far San-Hsia Factory, Tayuan Plant, and Taoyuan Wires and Cables Plant have established ISO 50001 updated to the latest version. In addition, we conduct annual energy audit and report the energy consumption information to the government as well as implement energy saving projects in H.Q. and the factories. In 2019, Tatung reduced about 2.815 million kwh of purchased electricity consumption via 4 dimensions which equals to 10,134.43 GJ. The saved electricity contributed as much as 1,500 tons CO2e reduction.

▲ Status of Tatung’s ISO 50001

Energy saving projects and results in 2019

Energy saving projects (by category) Amount of electricity saved (kw-hr) Amount of electricity saved (GJ) GHG reduction (tons CO2e)
Optimized manufacturing process to reduce operation time. 219,281 789.41 116.88
Replaced with higher energy efficient and energy saving equipment. 2,249,530 8,098.31 1,199.00
Centralized operation areas and shut down unnecessary air conditioners and lighting. 126,433 455.16 67.39
Increased the frequency of maintenance and inspection for major energy using equipment, as well as control the operating time to avoid leakage or wasting of air or cooled air. 219,792 791.25 117.15
Total 2,815,037 10,134.13 1,500.41

Note: 1 kw-hr of electricity emits 0.533 kg CO2e.

▲ Amount of GHG reduction in the past years

The energy intensity achievement status of represented products in 2019, 6 of the 7 represented products reached the target of reducing energy intensity by 1%, and the achievement rate was 85.71%. Products that did not meet the target is one product of Taoyuan Wires and Cables Plant. In terms of electricity saving rate, the headquarter and all factories have exceeded 1%, and all of them have achieved the target. Our energy saving plan for 2020 is summarized as follows:
  • Tayuan Plant:
    Renovate and improve the existing major electricity consuming production equipments by introducing inverters and automatic control of human-machine interface operations, and replacing manpower with automatic feeding and conveying operation to reduce the standby power consumption of re-work and non-production time caused by human error.

  • Taoyuan Wires and Cables Plant:
    Continue to replace 40W fluorescent tubes with 20W LED tubes at the lighting area of the production line. Replace the old fixed-frequency air compressor system with variable frequency type. Improve the power quality of the 8MM wire drawing machine and increase the power factor to 95%. Improve the efficiency of equipments, improve the transmission equipments of the extruder and stranding machines used in the process, replace the old DC motors with variable frequency motors to save electricity, and finally coordinate with the summer power offset and regional surveys to adjust and use electricity, and reduce the contract capacity in time.

  • San-Hsia Factory:
    Continue to build smart air compressor systems, improve test equipments for large motor production, install 600-ton die-casting machine IOT monitoring, and replace office box-type air conditioners with more energy-efficient models.

  • Taoyuan 1st Plant:
    Evaluate and plan the introduction of energy storage system, cooperate with the government to suppress peak electricity consumption, and meet the requirements of Renewable Energy Development Act.

  • Headquarters:
    Set up a solar photovoltaic energy storage system to benefit energy creation and reduce peak electricity demand, and to introduce level 1 energy-efficient air-conditioning and monitoring management.

Target achievement status of Stage 2 Energy Saving Target

Represented products Energy intensity in baseline year (2018) Energy intensity in 2019 Target achievement status in 2019 (↓1%) 2023 (↓6%)
Motor/generator 50.94 MJ/HP 48.45 MJ/HP -
Electric cooker 35.22 MJ/Piece 34.03 MJ/Piece -
Commercial air conditioner 55.78 MJ/KW 53.05 MJ/KW -
Transformer/switchgear 7,329.31 MJ/MVA 7,221.56 MJ/MVA -
Watt-hour meter 7.49 MJ/Piece 7.40 MJ/Piece -
Lan cable 1.10 MJ/Meter 1.17 MJ/Meter X -
Power cable (M) 15.59 MJ/Meter 11.48 MJ/Meter -

Note: The baseline year is 2018. √ represents the result met the target, X represents the result did not meet the target.

Last update: 2020.09.25