Lohmann, Gerald M.
(2018)
Irradiance variability quantification and small-scale averaging in space and time: a short review.
Atmosphere, 9 (7).
p. 264.
ISSN 2073-4433
Abstract
The ongoing world-wide increase of installed photovoltaic (PV) power attracts notice
to weather-induced PV power output variability. Understanding the underlying spatiotemporal
volatility of solar radiation is essential to the successful outlining and stable operation of future
power grids. This paper concisely reviews recent advances in the characterization of irradiance
variability, with an emphasis on small spatial and temporal scales (respectively less than about 10km
and 1 min), for which comprehensive data sets have recently become available. Special attention is
given to studies dealing with the quantification of variability using such unique data, the analysis
and modeling of spatial smoothing, and the evaluation of temporal averaging.
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