SDG 7.2.2 Upgrade buildings to higher energy

1. NCUE holds an annual energy-saving and carbon-reduction meeting to evaluate plans for the replacement of existing equipment with energy-saving equivalents the following year. At least NT$5 million is invested annually to replace energy-consuming equipment, which is forecasted to achieve the goal of increasing total energy efficiency by at least 1% per year (the goal is to save 150,000 kWh or more annually).

(1)The school has implemented a range of major energy conservation and carbon reduction measures from 2019 to 2022. (Table 1)

Table 1. Major Energy Conservation & Carbon Reduction Measures Implemented by NCUE between 2019-2023

Year	Major Measures
2023	(a)We planned to implement a campus-wide air conditioning peak offload system in phases over several years, and we expect to achieve annual energy savings of over 100,000 kWh upon its completion. (b)For the installation of Phase 2 photovoltaic solar cells, the installed capacity at the Jinde and Baoshan Campuses would be increased by 510.04kWp and 473.14kWp respectively.
2022	(a)We planned to implement a campus-wide air conditioning peak offload system in phases over several years, and we expect to achieve annual energy savings of over 100,000 kWh upon its completion. (b)Replace the T5 lights of all buildings with LED lights, which involves at least 500 light replacements. This measure is expected to save more than 50,000 kWh of power annually. (c)Implement the routine replacement of all air-conditioning units with more energy-efficient units, which involves more than 70 replacements and is expected to save 100,000 kWh of power annually.
2021	(a)Replace the 300RT water-cooled chiller and ancillary equipment in the gymnasium of the Jinde campus, which is expected to save 227,603 kWh of power annually (b)Replace the T5 lights of all buildings with LED lights, which involves at least 500 light replacements. This measure is expected to save 50,000 kWh of power annually. (c)Implement the routine replacement of all air-conditioning units with more energy-efficient units, which involves more than 50 replacements and is expected to save 75,000 kWh of power annually.
2020	(a)Replace the water-cooled chiller and ancillary equipment in the Library and Information Center Building of the Jinde campus, which is expected to save 327,603 kWh of power annually. (b)Replace the T5 lights in the classrooms on the first floor of the gymnasium with LED lights, to save 25,028 kWh of power annually. (c)Replace 64 air-conditioning units, saving approximately 1,500 × 64 = 96,000 kWh of power
2019	(a)Replace the T5 lights on the first and second floors of the library with LED lights to save 27,430 kWh of power annually. (b)Replace 65 air-conditioning units, saving approximately 97,500 kWh of power (c)Calibrate the equipment in the machine room of the swimming pool to sleep during closed periods to reduce annual power consumption by up to 40,000 kWh.

(2)In response to the national policy, NCUE plans to complete the second installation of photovoltaic solar cells on the roofs of other school buildings by the end of 2022. The total capacity of the solar power system on the Jinde campus is currently at 2091.375 kWp, and that on the Baoshan campus is expected to be 571.5 kWp. In addition to reducing the net energy load of the buildings, in certain scenarios (such as off-peak months), the buildings’ energy needs can be entirely met by the solar power system. By reducing the amount of energy drawn from the main grid, local line loss can be reduced by approximately 3%, improving energy efficiency. Moreover, solar panels block direct sunlight that would otherwise be absorbed by the roof. According to research, direct sunlight on the roof can be reduced by 38% with the use of solar panels and roof temperature, consequently, can be reduced by 2.8°C. Thus, the temperature inside the buildings can be lowered, the use of air conditioners can be reduced, and energy efficiency can be improved. (Figure 1)

Figure 1. The above picture shows the gymnasium’s roof with installed solar cells.

(3)The (partial) design and layout of the rooftop photovoltaic solar cells on each building in the Jinde and Baoshan campuses from 2022 are as follows:

Solar Power System Installation Plan for the Jinde and Baoshan Campuses in 2022. (Table 2)

Table 2. Solar Power System Installation Plan for the Jinde and Baoshan Campuses in 2022

Campus	Building	Estimated capacity (kWp)	(Total)	Estimated power generation (kwh/year)	(Total)
Jinde Campus	Qiaosi Building	69	2091.375 kWp	94,687	2,607,183 kWh
	Baisha Building	191.625		239,531
	Zhishan Building	48		60,000
	Mingde Building	85.125		80,156
	Educational Building	92.25		115,312
	No. 8 Dormitory	189		236,250
	No. 7 Dormitory	181.5		226,875
	No. 6 Dormitory	88.5		110,625
	Hubin Building	123		153,750
	Library	133.5		183,281
	Comprehensive Center	103.875		129,843
	Student Canteen	146.625		183,281
	Shengyang Building	99.375		124,218
	Xuesi Building	36		45,000
	Wang Jinping Activity Center	160.65		192,187
	Wang Jinping Swimming Pool	239.4		302,812
	Old Activity Center	103.5		129,375
Baoshan Campus	No. 9 Dormitory	99.75	571.5 kWp	125,625	714,375 kWh
	First Educational Building	69.75		126,563
	Engineering College Building	139.5		174,375
	Jingshi Building	114.375		142,969
	Lixing Building	148.125		185,156

(4)For the complete layout of the solar power system on the roofs of each building, please refer to Annex 7.2.2A - Layout of Photovoltaic Solar Devices on the Roofs of the Buildings in the Jinde and Baoshan campuses.

(5)The school is currently planning new rooftop and ground-mounted photovoltaic solar devices in 2023. Between 2023-2024, we expect to increase the installed capacity in the Jinde and Baoshan Campuses by 510.04kWp and 473.14kWp respectively. For the list of photovoltaic solar devices to be installed on these campuses, see Table 3.

Table 3: List of photovoltaic solar devices in NCUE’s Jinde and Baoshan Campuses

Campus	New Location	Estimated Capacity (kWp)	(Total)	Estimated Power Generation (kWh/year)	(Total)
Jinde Campus	No. 3 Dormitory	259.94	510.04 kWp	324,925	637,550 kWh
	No. 5 Dormitory	69.7		87,125
	Parking lot at the East Gate	102.5		128,125
	Left and right sides of the Torch Tower	77.9		97,375
Baoshan Campus	Behind No. 9 Dormitory	138.99	473.14 kWp	173,737	591,424 kWh
	Parking lot of the No. 9 Dormitory next to the Baoshan Road	123.41		154,262
	Parking lot of the First Educational Building next to the Baoshan Road	113.98		142,475
	Parking lot of the Second Educational Building	96.76		120,950

The schedule of the solar power plant project is as follows (Table 4):

Table 4. Schedule of NCUE Photovoltaic Solar Device Installation

Campus	Year	Newly Added Capacity (kWp)	Accumulated Capacity (kWp)	Estimated Annual Power Generation (kWh)
Jinde Campus	Before 2020	467	467	583,750
	2021-2022	2085.75	2552.75	3,190,933
	2023-2024	510.04	3062.79	3,828,483
Baoshan Campus	Before 2020	0	0	0
	2021-2022	571.5	571.5	714,375
	2023-2024	473.14	1044.64	1,305,799

(6)The complete design and layout of the 2023-2024 solar energy project can be found in Annex 7.2.2B - 2023-2024 Solar Energy Project of NCUE Jinde Campus and Baoshan Campus.

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