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Investigating the potential of energy flexibility in an office building with façade BIPV and a PV parking system
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Building Integrated Photovoltaic (BIPV), is becoming an attractive solution in the
context of high penetration of photovoltaic systems in buildings caused by the strive to
achieve net or nearly zero energy status. Besides retrieving solar radiation to produce
electrical energy, BIPV also offers aesthetical advantages because of its architectural feature.
However, when integrated into vertical façades, the angle of the Photovoltaic (PV)
modules may considerably affect the efficiency of BIPV when compared with horizontally
oriented modules in the same location and latitude.
This work reports on the electric energy performance of an office building, Solar XXI,
located in Lisbon, Portugal, based on the opportunity of having two PV technologies in
the same building. The system installed on the south façade is a BIPV (12 kWp) and the
second is a parking lot PV installed in a nearby car park facility (12 kWp). This situation
enables the comparison of Load Match Factors, but mainly Load Match Index, between
the two systems. The use of small scale loads in energy flexibility operational measures
to study the potential for flexible demand on an Net-Zero Energy Building (NZEB) office
building is also possible. Two different scenarios were taken into development, from
monitoring data obtained during March 2016 (winter period) and July 2016 (summer
period). PVGIS is a tool used to verify the possibility of a PV optimization in the parking
lot PV and EnergyPlus is used to create an energy consumption model of the building
aiming to be validated by the real values.
Descrição
Palavras-chave
BIPV Load Match Factors Energy Flexibility Energy Efficiency in Buildings