RENEWABLE ENERGY
137.76kWp with 574 photovoltaic panels have been installed on the rooftop of Menara KEN TTDI to harness renewable energy from the sun , which then feeds the building for selfconsumption , reducing the electricity bill . Total solar energy generated for the year 2021 contributed 11 % electricity savings . Furthermore , with these photovoltaic panels , energy generation is renewable , sustainable , and emission-free , thereby reducing the carbon footprint .
ENERGY EFFICIENCY MONITORING SYSTEM
Based on the electricity bill for the year 2021 , the overall electricity usage was 1,655,386 kWh .
To gauge the building ’ s energy performance , we used the formula to calculate the building ’ s energy efficiency and compared the calculation to the Energy Efficient Index . Based on the Malaysia
Figure 14 : Energy Efficiency Management System
Figure 13 : PV Panels at the Rooftop
Green Building Index ’ s EEI baseline minimum of less than 150 kWh / m 2 / year , the building managed to achieve an efficiency of 65.8 kWh / m 2 / year , which is way below the baseline .
Systems are deployed to monitor the efficiency of the building . Building Automation System ( BAS ) is programmed to monitor the building ’ s performance and ensures that the facilities are efficiently and effectively managed . All systems in Menara KEN TTDI are monitored daily by the Energy Efficiency Management System ( EEMS ) which shows the condition of the chiller plant and the network diagram . In the chiller plant room , there is a refrigerant leak detection system installed to detect any faults or problems during the operation of the chiller plants .
Annual Consumption ( Kwh / year ) |
1,655,386 |
Gross Floor Area ( GFA ) ( m 2 ) |
41,389 |
Operating Hour ( OH ) |
2,000 |
Vacancy Rate |
0.75 |
Actual operation |
2,400 |
EEI KWH / m 2 / year |
44.44 |
Air-Con Area ( m 2 ) 27,952 EEI KWH / m 2 / year ( AC Area ) 65.8 Table 4 : Energy Efficiency Tabulation
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