Optimal and rule-based control strategies for energy flexibility in buildings with PV

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorSalpakari, Jyrien_US
dc.contributor.authorLund, Peteren_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorNew Energy Technologiesen
dc.date.accessioned2017-05-11T09:03:46Z
dc.date.available2017-05-11T09:03:46Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2018-01-01en_US
dc.date.issued2016-01-01en_US
dc.description.abstractPV installations in buildings can utilize different on-site flexibility resources to balance mismatch in electricity production and demand. This paper studies cost-optimal and rule-based control for buildings with PV, employing a heat pump, thermal and electrical storage and shiftable loads as flexibility sources to increase the value of PV for the prosumer. The cost-optimal control minimizes variable electricity cost employing market data on electricity price and optionally constrains grid feed-in to zero; the rule-based control aims at maximizing PV self-consumption. The flexibility strategies are combined into a simulation model to analyze different system configurations over a full year. The applicability of the new model is demonstrated with a case study with empirical data from a real low-energy house in Southern Finland. Compared to inflexible reference control with a constant price for bought electricity, cost-optimal control employing hourly market price of electricity achieved 13-25% savings in the yearly electricity bill. Moreover, 8-88% decrease in electricity fed into the grid was obtained. The exact values depend on PV capacity and the flexibility options chosen. Limiting grid feed-in to zero led to less energy efficient control. The most effective flexibility measures in this case turned out to be thermal storage with a heat pump and a battery, whereas shiftable appliances showed only a marginal effect. (C) 2015 Elsevier Ltd. All rights reserved.en
dc.description.versionPeer revieweden
dc.format.extent12
dc.format.extent425-436
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationSalpakari, J & Lund, P 2016, ' Optimal and rule-based control strategies for energy flexibility in buildings with PV ', Applied Energy, vol. 161, pp. 425-436 . https://doi.org/10.1016/j.apenergy.2015.10.036en
dc.identifier.doi10.1016/j.apenergy.2015.10.036en_US
dc.identifier.issn0306-2619
dc.identifier.issn1872-9118
dc.identifier.otherPURE UUID: ac555bfe-a867-4e04-b16b-407b8330f6e2en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/ac555bfe-a867-4e04-b16b-407b8330f6e2en_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/6557589/salpakari_lund_optimal_and_rule_based_control_APEN_2016.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/25788
dc.identifier.urnURN:NBN:fi:aalto-201705114163
dc.language.isoenen
dc.relation.ispartofseriesAPPLIED ENERGYen
dc.relation.ispartofseriesVolume 161en
dc.rightsopenAccessen
dc.subject.keywordPhotovoltaicsen_US
dc.subject.keywordIntelligent buildingen_US
dc.subject.keywordDemand side managementen_US
dc.subject.keywordProsumeren_US
dc.subject.keywordEnergy storageen_US
dc.subject.keywordSystem controlen_US
dc.subject.keywordDEMAND-SIDE MANAGEMENTen_US
dc.subject.keywordPHOTOVOLTAIC SELF-CONSUMPTIONen_US
dc.subject.keywordRENEWABLE ELECTRICITYen_US
dc.subject.keywordURBAN AREASen_US
dc.subject.keywordHEAT-PUMPSen_US
dc.subject.keywordSYSTEMen_US
dc.subject.keywordPOWERen_US
dc.subject.keywordSTORAGEen_US
dc.subject.keywordINTEGRATIONen_US
dc.subject.keywordIMPACTen_US
dc.titleOptimal and rule-based control strategies for energy flexibility in buildings with PVen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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