Page 51 - SD RATCH EN

RATCH Group PCL.
Sustainability Report 2020
51
Energy saved Expenses Project/Activity (megawatt-hour) saved (baht)
Emissions reduction (tCO2e)
Ratchaburi Power Plant
94.30
787.02
175.03
41.44
16.30
36.35
165.45
284,795
2,376,797
612,605
145,035
57,034
127,218
579,063
47
393
Tri-Energy Power Plant
87
21
18
83
8
Nava Nakorn Electricity Power Plant
1,595.14
8.99
27.58
3,943,928
125,406
76,370
797
14
4
Suspending operation of auxiliary cooling water pump during gas turbine shutdown
Operating 1 station air compressor instead of Control Air Compressor during reserved shutdown
Replacement of main air compressor with screw compressor, to provide air to N2 Generator during the plant’s full block reserved shutdown
Installation of service water booster pump, to enable water recycling during the plant reserved shutdown
Installation of On/Off Timer to control Generation Building’s air-conditioning compressor, which lessened the use of compressor during the night
Reducing energy consumption in plant cooldown after Full Speed No Load Operating (FSNL) Test, through shortened ECB and HRC pump operations during plant full block reserved shutdown
Reducing energy consumption in equipment cooldown after FSNL Test, by performing CT101 and CT201 FSNL Test on the same day
Stopping FG Compressor during holidays’ peak periods, to reduce electricity demand from Station Service and sell the saved electric power to industrial customers
Reusing RO Pass II Sampling Water at RO Permeate Tank, to reduce power supply from Station Service
Applying VFD and UF Feed Water Pump in speeding up the pump, which reduces the pump’s energy consumption