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NCUE_Logo  National Changhua University of Education Sustainable Development Goals, SDGs 

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SDG7.2.4 Plan to reduce energy consumption-2021

1. Each year, NCUE selects old, energy- and power-consuming, and low-efficiency equipment for replacement based on the regional needs of the buildings. This saves 1% of electricity annually. We have consistently implemented our annual energy-saving policy since 2007, and have cumulatively saved more than 15% of annual electricity consumption as of 2020. Our annual plans for 2019–2021 are as follows:

Year

Annual plans

2021
  1. Replace the 300RT main chiller unit and its auxiliary equipment on the Jin-De Campus’ gymnasium, which is expected to save 227,603 kWh of electricity annually.
  2. ​Replace all T5 light tubes in the various campus buildings with at least 500 LED light tubes, which is expected to save 50,000 kWh of electricity annually.
  3. Routine replacement of more than 50 air-conditioning units, which is expected to save 75,000 kWh of electricity annually.

2020
  1. Replace the main chiller unit and its auxiliary equipment in the Jin-De Campus’ Main Library and Information Building, which is expected to save 327,603 kWh of electricity annually.
  2. Replace all T5 light tubes in the gymnasium’s 1st floor classrooms with LED light tubes, which is expected to save 25,028 kWh of electricity annually.
  3. Replace 64 air-conditioning units, which will save approximately 1,500 × 64 = 96, 000 kWh.

2019
  1. Replace T5 light tubes on the library’s 1st and 2nd floors with LED light tubes, which is expected to save 27,430 kWh of electricity annually.
  2. Replace 65 air-conditioning units, which will save approximately 97,500 kWh.
  3. Set the timer for equipment in the swimming pool equipment room to go to ‘sleep’, which reduces the annual electricity consumption during the period when the facility is closed by 40,000 kWh.
 

2. Timers or sensors are used to manage the automatic activation of electrical equipment, which ensures proper illumination while saving energy.

 

Chart of NCUE’s electricity consumption trend in 2007–2020
Chart of NCUE’s electricity consumption trend in 2007–2020

(The consumption rebound in 2018–2020 was due to the addition of three buildings over three consecutive years)

 

All street lights on campus are controlled by timers and are set to turn off by region and time
All street lights on campus are controlled by timers and are set to turn off by region and time

 

All the street lights on campus are equipped with light sensors to save on energy used for illumination

All the street lights on campus are equipped with light sensors to save on energy used for illumination

 

3. 1 MW/1.26 MWh energy storage system commenced operations in the Bao-Shan Campus in September–October 2020, which sets the original peak load of 1,023 kW to be lower than the contracted capacity of 835 kW . This led to savings of NT$98,105 and NT$20,292 for the two months, respectively, which would be the extra charges payable for exceeding the contracted capacity. Based on these operating results, the Bao-Shan Campus can reduce its contracted capacity to less than 800 kW. With the installed photovoltaic panels, NCUE can supply enough power to meet most of its peak load requirement. In addition, a large energy storage system is used to reduce peak demand and improve energy efficiency.

7.2.4

 




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