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Effect of Energy Storage on Self-Consumption and Self-Sufficiency: A Field Study in a Nordic Climate
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- Ollas, Patrik, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Persson, Jon (author)
- RISE Research Institutes of Sweden
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- Kovacs, Peter (author)
- RISE Research Institutes of Sweden
- (creator_code:org_t)
- 2021
- 2021
- English.
- In: EU PVSEC Conference Proceedings. - 2196-100X. - 3936338787 ; , s. 1459-1463
- Conference paper (peer-reviewed)
Abstract
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- This paper examines the variation in self-consumption and self-sufficiency for eight residential-size solar photovoltaic systems under Nordic climate conditions. The work uses measured photovoltaic array performances with a 30-second temporal resolution and is evaluated for a full year’s operation. One of the systems is operated with battery storage to examine the effect on the system’s self-consumption and self-sufficiency, where the simulated load profile is taken from a single-family residential building in Sweden. The results show a consistent negative correlation between array size and self-consumption. The relation between array size and self-sufficiency is more sensitive and is also affected by the mix of PV technologies represented in the test. Adding battery storage increases the self-consumption in the range of 0-30 percentage points weekly. Furthermore, the variation of self-consumption and self-sufficiency follow the seasonal variation in solar resource and load size and illustrate the battery’s eventual redundancy in the winter when the battery’s objective function is to maximize self-consumption.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Inbäddad systemteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Embedded Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Energisystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Energy Systems (hsv//eng)
Keyword
- Battery Storage and Control
- Storage.
- System Performance
- Self-consumption
- Self-sufficiency
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- kon (subject category)
- ref (subject category)
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