Is a power plant obliged to be reported as unavailable capacity according to Article 4(1) of REMIT, if the technical capability is given, but due to environmental issues (flood, storm, etc.) prevented from producing? As an example, think of a pumped storage power plant, where the river it cumulates in is affected by a flood due to a storm. Does the power plant operator need to publish the power plant as (production) unavailability?
Answer: In order to foster transparency and provide the wholesale energy market with all necessary information (e.g. available/non-available capacity), the described circumstances are considered information which needs to be published as soon as the internal decision not to produce is made. Of course, the publication needs to take into account that the unavailability is not due to technical malfunction but is rather a result of environmental issues. This distinction needs to be considered to correctly populate the field “reason” (e.g. “unplanned”, “external factors”) and should be further elaborated if there is a possibility for a more precise description (e.g. free text). Since even detailed forecasts sometimes cannot predict incidents like storms, avalanches, floods, etc., the indicated duration of the event may therefore carry an element of uncertainty and shall be updated accordingly as soon as new information is available.