Abstract
Net Zero Energy Buildings (NZEB) and Positive Energy Buildings (PEB) are gaining more and more interest. In this paper, the impact of the integration of a battery in a positive energy building is assessed in order to increase its self-consumption of electricity. Parametric studies are carried out by varying the building envelope characteristics, the power supply system, the climate, the lightning and appliances profiles, the roof tilt, the battery size and the electricity tariffs, leading to 3200 cases. The analysis is performed on an annual basis in terms of self-consumption rate, shifted energy and payback period. It is shown that the battery size leading to the minimum payback period within the input range, is comprised between 2.6 kWh and 6.2 kWh. The lowest payback periods, (~5.6 years), are reached with a well-insulated building envelope, a high lightning and appliance consumption, a low feed-in tariff and a 5 kWh battery. Finally, simple correlations (based on the feed-in tariff, the annual electrical consumption and production) to predict the optimal size of battery and the lowest payback period are proposed.
Original language | English |
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Title of host publication | Proceedings of ECOS 2016 - 29th International conference |
Number of pages | 12 |
Publisher | International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS |
Publication date | Jun 2016 |
Publication status | Published - Jun 2016 |
Event | ECOS 2016 - International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems - Grand Hotel Bernardin, Portoroz, Slovenia Duration: 19 Jun 2016 → 23 Jun 2016 http://www.ecos2016.si/ |
Conference
Conference | ECOS 2016 - International Conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems |
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Location | Grand Hotel Bernardin |
Country/Territory | Slovenia |
City | Portoroz |
Period | 19/06/2016 → 23/06/2016 |
Internet address |
Keywords
- Load shifting
- Energy storage
- Positive energy building
- Economic analysis