Energy Management and Response to Climate Change

Chroma have working together with our customers to become a green enterprise
that makes a meaningful contribution to a more friendly Earth.
Solutions for Carbon Reduction
(GHG Management)
GRI 305-1;GRI 305-2;GRI 305-4
Chroma has adhered to the standards prescribed in ISO 14061-1:2006 and the Procedures Governing Management of the GHG Inventory by the EPA. All relevant processes and their outcome are recorded to determine the amount of GHG emission from our plants. We have also established an audited environmental management system to facilitate the continual improvement of noncompliant items and have provided OJT on environmental management in an effort to advocate the importance of environmental protection to all Chroma employees and contractors.

It is five years since Chroma established a GHG inventory mechanism (which examines emissions of CO2, CH4, N2O, CFC, PFC, SF6 and NF3). The GHG inventory implemented by Chroma accounts for 100% of GHG emission produced by our operations. Our GHG inventory can be separated into two categories. The first is direct GHG emission, which includes stationary, process, mobile and fugitive emissions. The second is indirect emissions from sources that generate electricity and have been purchased externally. 2015 is the Chroma base year for GHG inventory and our first category emissions came to a total of 306.4120 tonnes CO2e/year (2.92%), and the second category emissions were 10,185.0928 tonnes CO2e/year (97.08%) to a combined total of 10,491.505 tonnes CO2e/year.   

The GHG inventory mechanism allowed us not only to accurately monitor our GHG emission status, but also to propose feasible solutions for GHG reduction. We were able to identify our biggest source of carbon emission and formulate specific solutions for improvement. To obtain more information from our internal GHG inventory and boost its validity, an unbiased third-party verification organization (Bureau Veritas Taiwan) was commissioned to do an external verification of our inventory process to ensure optimal data quality.   

To ensure effective and accurate monitoring of our GHG emission, we have adopted GHG intensity (1 tonne of CO2 equivalent/NT$ 1 million of sales) as a management indicator. Our GHG emission intensities for 2017-2019 are shown in the table below. As can be seen, our GHG intensity was 0.99 tonnes CO2e/NT$ 1 million in 2019, which is lower than that in the previous year.
Energy Management and Resource Conservation
GRI 302-1;GRI 302-3
The results of the GHG inventory show that our primary source of GHG emission (91.15%) comes from externally purchased power. We have therefore chosen energy conservation as our priority for carbon reduction. To achieve accurate control of electricity usage, we have targeted power intensity (1 kWh of power/NT$1 of sales) as our main indicator for energy management and set a power intensity reduction goal of 10% in 2019.   

In the face of global warming and in an effort to alleviate the impact our manufacturing operations have on the environment, Chroma has chosen to develop testing equipment that is capable of recycling power back to the grid to conserve significant amounts wasted during discharge processes. The test systems provide clean, stable power to the grid with more than 90% regenerative efficiency to resolve the issue of energy waste by traditional equipment during power discharge. 

Chroma has implemented various energy saving measures, including the replacement of old PCs with low-wattage PCs, as well as all public light fixtures across our plants with LED fixtures. Besides, we record a statistical analysis of power consumption at each plant, which includes keeping track of the temperature and humidity settings at our plants and monitoring air-conditioning. Last, but not least, we disseminate the concept of energy conservation to instill the need to preserve the resources of our planet and remind our employees to switch lights off whenever they leave a room and to turn off their PC when they leave the office. Good habits like these help conserve energy and reduce carbon emission. Our success in energy conservation and carbon reduction is also evident from a comparison of the graphs of power intensity for the past three years. In 2019 we were able to reduce our power intensity by 10% and we hope to keep this momentum going and bring it down even further.   

In addition to power consumption, we also value water as a vital resource. The reduction of water consumption and improvement of the efficiency of water usage has also become a crucial mission for Chroma. The Company has introduced a number of water-saving measures to ensure effective water management. Monitoring equipment has been installed that checks the quality of air-conditioning cooling water. We have been disseminating the concept of reducing domestic water consumption. Employees are asked to install water-saving gaskets and other water-saving devices with the aim of reducing our monthly water consumption by 3%. This will help to achieve our goal of reducing power consumption and also to reduce carbon intensity and fulfill our obligation to protect the environment.
To determine the total internal energy consumption at Chroma, we have calculated the consump-tion of gasoline, diesel, natural gas and externally purchased power for the Taoyuan, Hsinchu and Kaohsiung Plants separately. From the tables and graphs shown below, it is apparent that the total internal energy consumption at Chroma in 2019 fell in comparison with previous years. We hope to make further improvement in the future by replacement of old equipment and the introduction of better technology to further reduce the of energy use and minimize our damage to the environment.
1)  Diesel power consumption at Hsinchu Plant was calculated based on use after the building superintendent had made the purchase. 

2) Reference for conversion factor: MOEA Bureau of Energy - Heat Content of Energy Products (Updated on May 15, 2020)

Natural gas: 9,000 kcal/m3
Diesel: 8,400 kcal/L
Gasolin: 7,800 kcal/L
1 kcal =4186J

Total amount of energy used internally at our three plants

(in J)
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