To actively introduce GHG inventory, it was planned to introduce ISO 14064-1 inventory in a phased manner in 13 operating locations from 2019, including Head Office buildings (Jinshan and Aiguo Buildings), Taipei Post Office, Banqiao Post Office, Sanchong Post Office, Taipei Mail Processing Center and so on. In 2021, the scope of inventory operations was expanded to 21 operating locations and external verification was also passed. Starting from 2023, the scope of inventory expanded to designated branches and the 2022 GHG inventory and verification project for post offices and their branches at all levels (a total of 36 branches) was conducted. Special branches that have not yet conducted GHG inventory and one branch each from Class A to Class D branch offices under the jurisdiction of Taipei Post Office, Taichung Post Office and Kaohsiung Post Office were the targets of the inventory. GHG protocol was used for the content disclosure of Scope 1 and Scope 2 data, and the third-party verification statement of this project was obtained on December 14, 2023. The total GHG emissions of the designated branches (36 branch offices in total) amounted to 9,568.84 tonnes of CO2e.
The carbon dioxide generated by Chunghwa Post mainly comes from the gasoline and diesel used for transportation and the purchased electricity of each operating bases. ISO 14064-1 verification was applied and the GHG emissions of 21 operating bases in 2023 totaled 40,845.573 tonnes of CO2e, with the GHG emission intensity of 0.18 tonnes of CO2e/NT$ million. To cope with the international trends and to work in line with the national policy to move toward zero emissions by 2050, it is planned to launch the GHG inventory at all Chunghwa Post’s operating locations in Taiwan to facilitate the development of carbon reduction action plans and milestones in the future.

To effectively gather the statistics of the energy usage to further improve energy use efficiency to achieve energy conservation and carbon reduction, the energy-saving measures implemented in 21 operating locations in 2023 are showed in the following table. The measures mainly included the replacement of the lighting equipment and the air conditioning systems. It is estimated to save energy by approximately 750,656 kWh/year, reducing the GHG equivalent by about 370,824.06 kgCO2e.

Chunghwa Post puts into consideration number of the delivery sections of each post office, the service life of the existing scooters, the mileage and annual budgets every year to plan the number of vehicles to purchase and the quotas for each unit for the following year. However, due to the fact that the current transportation capacity of e-scooters cannot completely replace the fuel-powered scooters yet, we will continue to pay attention to the development of relevant technology for the replacement of old scooters to meet the needs of the postal business while taking into account energy conservation and carbon reduction.
To respond to the green energy policy, Chunghwa Post started to purchase e-vehicles in 2017. As of the end of 2023, we have used 3,241 e-scooters and 54 e-vans, accounting for over 41% of the overall postal vehicles, saving approximately 467,820 liters of fuel consumption, and the estimated annual reduction of carbon emissions is 1,798.52 metric tons of CO2e. As technology advances, the endurance and loading capacity of e-scooters gradually increase. It is planned to increase the proportion of e-scooters to 50% by 2030 and to 100% by 2040.

To improve the efficiency of postal delivery, the number of vehicles used has continued to increase in recent years. In 2022, the number of postal vehicles with more than four wheels increased, leading to a slight increase of energy consumption compared with 2021. In 2023, with the use of electric vehicles and the continuous promotion of carbon reduction measures in transport, energy consumption decreased by 4% compared with 2022.

Starting from 2015, Chunghwa Post has successively installed solar PV power generation systems on the roofs of the buildings of its post offices to increase the use of renewable energy. In 2023, 130kW of rooftop solar PV equipment was installed, with an annual power generation of about 172,033 kWh, with an annual carbon reduction of 85 tonnes. In addition, it is planned to install solar PV power generation system on the roofs of the North Taiwan Mail Operating Center (under construction) in the Post Logistics Park in 2024. A total of 374 solar power modules (size: L1650 × W992 × H40) will be installed, with a total installed capacity of 117.81KW. It is estimated to generate 138,000 kWh of electricity annually. In the future, we will gradually increase the proportion of renewable energy use by installing solar power generation systems on the roofs of the building of every post office. Chunghwa Post Installed solar PV power generation system with the total capacity of 3,631 kWh from 2015 to 2023, producing 4.09 million kWh annually, reducing carbon emissions by approximately 2,122 tonnes.