Energy management (building project)
Original PUMA data
Year Month
Electrical Fuel Total Energy Total
Consumption Cost2 Consumption Cost2 Consumption Cost2
kWh $ GJ ekWh $ ekWh $
2016
July 15 4,123 4,123
August 59,509 5,316 47 12,991 72,500
September 67,360 6,054 75 20,949 88,309
October 77,559 7,241 98 27,294 104,854
November 90,296 8,388 106 29,559 119,855
December 122,072 10,987 51 14,111 136,183
Overall: 416,796 37,986 393 109,028 525,824
2017
January 137,423 12,328 68 18,978 156,401
February 122,902 11,108 67 18,684 141,586
March 124,803 11,257 143 39,751 164,554
April 106,188 9,982 178 49,443 155,631
May 95,057 9,618 60 16,791 111,848
June 76,134 7,696 125 34,739 110,873
July 70,166 7,171 160 44,477 114,642
August 68,950 7,197 100 27,720 96,670
September 70,734 7,237 100 27,749 98,484
October 87,136 8,982 109 30,391 117,526
November 106,430 11,064 136 37,761 144,191
December 130,477 12,864 148 41,110 171,588
Overall: 1,196,400 116,505 1,395 387,593 1,583,993
2018
January 137,423 13,377 146 40,499 177,921
February 122,902 12,310 139 38,578 161,479
March 111,755 12,056 142 39,567 151,321
April 85,418 10,039 135 37,547 122,965
May 85,314 9,866 139 38,504 123,817
June 73,153 8,152 123 34,082 107,235
July 72,285 7,893 119 32,955 105,240
August 75,064 8,281 115 31,927 106,991
September 78,660 8,559 115 31,990 110,650
October 92,865 10,125 136 37,702 130,567
November 107,985 11,863 154 42,669 150,654
Overall: 1,042,824 112,521 1,463 406,020 1,448,840
ECM 01: High-Efficiency Domestic Hot Water (DHW)
A high efficiency gas fired (“condensing”) domestic hot water (DHW) system should be considered.
The existing tanks are typical glass-lined atmospheric hot water heaters which have relatively short lives.
Total ECM cost: $55,154
ECM 02: Demand-Controlled Ventilation (DCV)
MUA systems deliver tempered outdoor air to the common areas of the building to make-up for local exhaust in the suites.
The existing makeup air (MUA) units blow heated air into the hallways and run continuously regardless of actual airflow demand.
Total ECM cost: $80,960