case study - energy management bms fine tuning
the case
BMS Fine Tuning A Shopping Center company decided to assess potential savings associated with the fine-tuning of its Building Management Systems (BMS). A pilot Shopping Center was selected and EdifĂcios SaudĂĄveis was called to evaluate and tune its BMS. Within a 3 month period, savings of 40.000 â‚Ź (10% of the total energy cost) were achieved without relevant investment!
the building
Location: Portugal Area: 75.000 m
2
Opening-year: 2010 Space-type: Shopping Center
Outcomes
2000
Air-handling-units: tuning variable speed drives: Savings: 20.000 â‚Ź/year
Energy Consumption (kWh per day)
1500
1000
500
Investment: 1.500 â‚Ź 0
12
1
13
35% Reduction
14
15
16
17
18
19
Before BMS fine tuning
20
21
22
23
After BMS fine tuning Days (November)
24
25
Nighttime loads: automatic turnoff (time clock control) of all unnecessary loads): Savings: 5.000 â‚Ź/year Investment: 0 â‚Ź
Energy Consumption during nightime (00:00 - 05:00) (kWh per day)
Outcomes
1000
750
500
250
0
21% Reduction
17
18
19
20
21
22
23
24
Before BMS fine tuning
25
26
27
28
After BMS fine tuning Days (November)
29
30
Outcomes global
Global Savings: 40 k€/year Investment: < 3 k€
r
40 k€/year)