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Performability Assessment of Standalone Photovoltaic Residential Systems

Volume 12, Number 5, September 2016 - Paper 8 - pp. 485-500

Vangelis N. KOSTAS1, Agapios N. PLATIS1,2* and Nickolas S. SAPIDIS1,3

1. Hellenic Open University, GREECE
2. University of the Aegean, Department of Financial and Management Engineering, Kountouriotou 41, Chios, 82100, GREECE
3. University of Western Macedonia, School of Engineering, Department of Mechanical Engineering, Bakola & Sialvera Str., Kozani, 50100, GREECE

(Received on July 4, 2016, revised on August 08, 2016)


Off-grid electrification is an alternative solution in cases where connection to the public electricity grid is unviable. Reliability evaluation of such systems is critical to achieve optimal design and end-user satisfaction. A Stand-Alone Photovoltaic (SAP) system is an option for off-grid electrification. A SAP system’s reliability and performability are analyzed taking into consideration system components failure, mean monthly values of solar radiation and mean daily distribution of solar radiation. Continuous Time Markov Chains (CTMC) are used to calculate the system’s reliability. Subsequently, performability indicators, in particular Loss Of Energy Expectation (LOEE) and Loss Of Load Expectation (LOLE), are extracted with the use of solar radiation data provided publicly. We apply the model for a small residential off-grid solar system situated in Nea Kallikrateia, Greece, and discuss the results.


References: 28


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