Laboratoire des systèmes solaires (L2S). 50 av. du Lac
73375 LE BOURGET DU LAC - CEDEX
Lespinats, S. and Aupetit, M.
(2011) “CheckViz: Sanity Check and Topological Clues
for Linear and Non-Linear MAppings.” Computer Graphics forum,
30(1), pp 113-125.
contribution of solar energy generation assets to the French
electrical grid is fast growing. Because the weather is intrinsically
fluctuating and chaotic and photovoltaic production is obviously
connected to weather conditions, the supply of photovoltaic energy is
fluctuating and chaotic as well. But the electrical grid must be
balanced at any time. To control the solar
energy penetration into the network while keeping it balanced,
photovoltaic production pattern must be anticipated [1, 2]. That is
how weather forecasts become very helpful to manage solar plants.
Photovoltaic is actually exempt from establishing a production
guideline within French rules (unlike other energy plants), so as to
support the growing of renewable energy. However, when the percentage
of unforeseeable energy exceeds a threshold of 30% on a network, the
energy administrator is allowed to disconnect a producer without any
financial compensation. Such a threshold is actually frequently
reached in several French insular departments and territories (French
Caribbean islands, Réunion, Corse, …). Unfortunately, this
threshold will not promote investments in photovoltaic plants. Our Vision -
Lately, wind farms are asked to provide a production guideline as any
other energy producer. We believe that, sooner or later, a similar
rule will be applied on solar farms, which will allow the removal of
the threshold on the share of unpredictable energy injected on the
network. Otherwise, there is no doubt that a tool to forecast the
production will help photovoltaic producers and network managers.