Assessing the potential of hybrid PV–battery systems to cover HVAC loads under southern european climate conditions

Abstract:

This paper presents theoretical and experimental works that are being carried out in a grid-connected residential building prototype available at the Solar Energy Institute. The house is provided with five rooftop photovoltaic (PV) systems distributed on different planes, a battery energy storage system (BESS) and heating, ventilation and air-conditioning system (HVAC) based on two air-to-air direct expansion reversible heat pumps. Thermal loads, HVAC consumption, PV generation and storage system are simulated using different dynamic models and validated with actual data coming from the monitoring experimental campaign, in order to determine the energy and economic suitability of using hybrid PV-battery systems in combination with reversible heat pumps and optimized control strategies to cover HVAC loads in residential buildings under southern European climate conditions. Results corresponding to the Madrid case-base show that for the building without BESS the selfsufficiency rate is about 20%, however the implementation of storage systems could duplicate this rate, depending on the BESS capacity and the PV generator nominal power.

Año de publicación:

2016

Keywords:

Fuente:

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