This title appears in the Scientific Report :
2017
Performance of a photovoltaic plus battery home system with load profile scenarios changing over the system life
Performance of a photovoltaic plus battery home system with load profile scenarios changing over the system life
The ratio of self-consumed electricity to total electricity produced by a photovoltaic (PV) system depends on whether consumption and production match in time. A temporal mismatch can be partially overcome by buffering the energy produced by PV, e. g. in a battery. A key impact factor which affects...
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Personal Name(s): | Hennings, Wilfried (Corresponding author) |
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Stenzel, Peter / Pflugradt, Noah | |
Contributing Institute: |
Systemforschung und Technologische Entwicklung; IEK-STE |
Imprint: |
2017
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Conference: | 9th International Conference on Applied Energy, Cardiff (U.K.), 2017-08-21 - 2017-08-24 |
Document Type: |
Conference Presentation |
Research Program: |
Assessment of Energy Systems – Addressing Issues of Energy Efficiency and Energy Security |
Publikationsportal JuSER |
The ratio of self-consumed electricity to total electricity produced by a photovoltaic (PV) system depends on whether consumption and production match in time. A temporal mismatch can be partially overcome by buffering the energy produced by PV, e. g. in a battery. A key impact factor which affects the techno-economic performance of PV-battery systems is the household load profile, which may significantly change over the lifetime of the PV-battery system, but the effects of a changing load profile on e. g. the self-consumption ratio were not yet investigated. This paper shows on three different examples the possible changes over the 21 year lifetime of a typical PV-battery system. It is demonstrated that changes in the behavior patterns and the number of residents can cause the self-consumption to vary by more than a factor of 2 over the lifetime of the system. When dimensioning such a system e. g. for optimal return on investment over the lifetime or for a certain degree of autarky, not only changing energy prices, but also changing household structure and changing behavior of the household members should be taken into account. |