Optimization of renewable energy for buildings with energy storages and 15-minute power balance
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Authors
Date
Major/Subject
Mcode
Degree programme
Language
en
Pages
13
Series
Energy, Volume 243
Abstract
When planning renewable hybrid energy solutions in buildings, it is important to consider both investment and operating costs. This study develops a novel building optimization model based on the coming 15 min power balance settlement. It utilizes multiple energy storages, including hot water tank and flow and lead-acid batteries. We apply the model to plan the retrofitting of an office building in Helsinki and a residential building in Tallinn, with photovoltaics and a ground source heat pump. The model is a large dynamic linear or mixed-integer linear programming model (LP/MILP) for an entire year. The results determine both the optimal dimensioning and the optimal operation of the different production and storage technologies for each building. The optimized configurations caused significant savings in energy costs for both buildings while reducing non-renewable primary energy consumption. Heat storage is highly cost-efficient, but power storages are not. Photovoltaics is cost-efficient in the Helsinki building but slightly unprofitable in the Tallinn building. Power and heat storages do not interact strongly, even in the presence of the ground source heat pump. The heat storage operates in concert with district heating and the ground source heat pump, while power storages operate together with photovoltaics and power trade.Description
Funding Information: This research has been funded, in part, by the Academy of Finland, project 298317. We thank Granlund Oy, Helen Ltd. and Mr. Tarmo Kor?tko from Tallinn Technical University for providing us data. Funding Information: This research has been funded, in part, by the Academy of Finland , project 298317 . We thank Granlund Oy, Helen Ltd., and Mr. Tarmo Korõtko from Tallinn Technical University for providing us data. Publisher Copyright: © 2021 The Authors
Other note
Citation
Savolainen, R & Lahdelma, R 2022, 'Optimization of renewable energy for buildings with energy storages and 15-minute power balance', Energy, vol. 243, 123046. https://doi.org/10.1016/j.energy.2021.123046