The low contribution of hydroelectric in the electric mix has been a trend since January and it appears, according to all available data and at this time of year, that it will continue to be so, with all the bad consequences that this can have on the price of electricity. The data provided by the Ministry of Agriculture, Fisheries and the Environment confirm this: the Spanish hydraulic reserve stands at 31,623 cubic hectometers, or 56.5% of its capacity.
The Ministry of Agriculture, Fisheries and the Environment says that capacity has declined by 377 cubic hectometers (0.7% of the reservoirs total capacity) in the last week while asserting that rainfall has been abundant throughout the Peninsula. The maximum was produced in Soria with 59.6 mm (59.6 l / m2).
In any case, the truth is that the Spanish hydraulic reserve stands at 56.5% of its total capacity. The reservoirs currently store 31,623 cubic hectometers (hm³) of water, having decreased by 377 cubic hectometers (0.7% of the reservoirs total capacity) in the last week.
The situation of the basins, in cubic hectometers, is shown in the attached table:
Francisco Valverde, an energy consultant and analyst in the electricity sector, warns in his Monthly summary of the Electricity Market that we published yesterday that the poor participation of the two large renewable generators of this time of the year, hydraulics and wind, have caused the renewable share to decrease in May compared to the same month in other years: it stood at 37.7%. 12 percentage points below the average of the last 4 years. If we look at the entire year, renewables have contributed 39%, or 10 points below, says Valverde.
We reproduce one of his graphs to get a clearer image:
Source: Francisco Valverde
The hydraulic in question contributed 1944 GWh in the month of May and its share from January according to REE was: