Energy Management


Systematic energy management to continuously improve energy efficiency and fulfill our corporate sustainability responsibilities.

Energy Management Policy

Billion Electric regards improving energy efficiency, reducing energy consumption, and implementing energy-saving management as a key foundation for sustainable operations. We are committed to aligning with the ISO 50001 Energy Management System, continuously enhancing energy performance, and applying systematic approaches to improve operational efficiency and reduce environmental impact—working together with society toward a more sustainable energy future.


I. Implement the energy management system and continuously improve energy performance.

II. Comply with energy-related laws and regulations to strengthen the foundation of energy-saving management.

III. Enhance energy-saving awareness across the organization and cultivate a sustainability-oriented culture.

IV. Prioritize high-efficiency equipment to reduce operational energy consumption.

V. Strengthen energy information disclosure and ensure open, transparent communication.


In 2025, Billion Electric’s Yilan Plant adopted ISO 50001:2018 by implementing an energy management system and establishing a cross-functional Energy Management Team. Through systematic execution, we ensure measurable energy-saving results by setting energy-saving targets, holding regular review meetings on energy use and improvement priorities, tracking the performance of energy-saving projects, and encouraging employees to proactively identify opportunities for efficiency improvements—thereby enhancing overall energy and resource effectiveness.

Billion Yilan Plant Energy Management Process

Energy Resource Management

The Billion Group’s energy consumption in 2024 is shown in the table below. Compared to 2023, total energy use increased by 1,193.29GJ, and energy intensity rose by 0.44GJ per NT$1 million in revenue. This increase was mainly due to the Group’s ongoing expansion of energy storage projects. As the number of completed sites grew, so did the operational and maintenance demands. In 2024, the scale of new construction projects also increased significantly, resulting in more complex on-site operations and higher travel frequency, which contributed to increased fuel consumption. In addition, electricity usage rose in some facilities due to adjustments in the Group’s operational strategy. These combined factors led to the overall rise in energy intensity in 2024.
Indicator Unit 2022 2023 2024
Electricity Consumption kWh / year 456,852 631,861.20 710,211.60
GJ 1,644.67 2,274.70 2,556.76
Gasoline Consumption L / year 17,860.80 22,955.50 46,499.60
GJ 582.89 749.16 1,480.36
Diesel Consumption L / year 2 19.6 4,997.90
GJ 0.07 0.69 180.71
Organization-Specific Metric Operating Revenue Operating Revenue Operating Revenue Operating Revenue
Organization-Specific Metric Value NT$ million 880 1,574 1,787.80
Total Energy Consumption GJ 2,227.63 3,024.55 4,217.84
Energy Intensity GJ / NT$ million revenue 2.53 1.92 2.36

Notes:

  1. Electricity heat value conversion: 1 kWh = 0.0036 GJ.
  2. Conversion factors are based on the 2023 Bureau of Energy Statistical Manual and the EPA Greenhouse Gas Emission Factor Management Table version 6.0.4, calculated from fuel heat values: gasoline 7,609 kcal/L; diesel 8,642 kcal/L; LPG 6,635 kcal/m³; 1 kcal = 4.184 KJ. Electricity heat value conversion: 1 kWh = 0.0036 GJ.
  3. The organization-specific revenue figures for 2022 only include Billion, Billion Watts, and Billion Sunpower.
  4. The organization-specific revenue figures for 2023 and 2024 only include Billion (headquarters, Yilan Plant, Hsinchu Laboratory), Billion Watts, Billion Energy Storage, Billion Power System, and Billion EVC; energy data includes Billion (headquarters, Yilan Plant, Hsinchu Laboratory), Billion Watts, Billion Energy Storage, Billion EVC, and Billion Power System.
  5. The 2023 disclosure originally covered only the Company; subsidiary data has now been included, and the information has been restated accordingly.

Energy Conservation Achievements

Every year, Billion Group remains committed to energy conservation and carbon reduction, continuously reviewing and identifying areas for improvement at each site. In addition to ongoing promotion of daily energy-saving practices—such as turning off lights when not in use, installing remote-controlled air conditioning systems, using circulation fans to maintain comfort without lowering temperatures excessively, replacing faulty fluorescent lamps with LED lighting, and adopting digital forms and e-approval processes to reduce paper usage—the Company continues to improve energy efficiency.


In 2024, a total of 41 LED panel lights were installed, replacing traditional grid ceiling fixtures. Over 2,000 hours of use, this upgrade is estimated to save approximately 5,986 kWh and reduce carbon emissions by about 2,837 kg, equivalent to planting 236 trees. At NoonSpare, all lighting was fully upgraded to LED tubes by the end of 2023, and smart meters were installed to increase electricity monitoring frequency from once every two months to real-time monitoring every 15 minutes. This improvement enables more accurate detection of abnormal usage and enhances energy management performance.


Due to the intermittent and unstable nature of renewable energy, nighttime peak demand in Taiwan remains a challenge, making grid dispatch more difficult. To address this, Billion Group actively supports government green energy policies and has invested in renewable energy by establishing energy storage sites across Taiwan. These sites make effective use of idle land and rooftops, helping to increase the share of green energy in total electricity generation. In 2024, seven energy storage systems were installed. By responding rapidly to grid frequency fluctuations, these systems help stabilize the power supply. Excess renewable energy can be stored and used during peak demand, improving overall energy utilization and grid stability, mitigating power shortages, and supporting the goal of promoting the green energy industry.