What is it about?
Domestic Solar PV is generally connected to the low voltage electricity grid. Electricity generated by the solar panels might be used directly by household appliances (loads), but, if there is insufficient load, surplus electricity may be exported to the grid. Similarly, if there is not enough generation to match the load, the shortfall is met by importing electricity from the grid. A key question is, how much electricity is typically exported or imported and how does this vary over all households.
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Why is it important?
The fraction of electricity self-consumed, and therefore exported is important for a thorough evaluation of the techno-economics . For example how much electricity do we avoid importing and therefore paying for? It is also pertinent to evaluate the potential of storage solutions to increase self-consumption, and the amount of electricity exported which may cause adverse effects on the low voltage network.
Perspectives
This paper shows how we must explore the variability of these parameters and again I employ probabilistic and stochastic models to achieve this. It relates to further papers and core work work in my PhD thesis.
Dr Philip A Leicester
Loughborough University
Read the Original
This page is a summary of: Probabilistic analysis of solar photovoltaic self-consumption using Bayesian network models, IET Renewable Power Generation, April 2016, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-rpg.2015.0360.
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