CURTIS SCHUBE: Spain’s Blackout Is A Cautionary Tale
The contrast in headlines, separated only by a week, should be sobering for those who push for renewable energy. On April 22, 2025, PV Magazine hailed “Spain hits first weekday of 100% renewable power on national grid.”…


The contrast in headlines, separated only by a week, should be sobering for those who push for renewable energy. On April 22, 2025, PV Magazine hailed “Spain hits first weekday of 100% renewable power on national grid.” A week later, on April 29, the same outlet’s headline reads “Spain’s nationwide blackout leaves millions in the dark, cause still unclear.”
Delgado Rigal, CEO of Spain’s AleaSoft Energy Forecasting, stated that the Spanish grid is “intended for turbine system and synchronism which are planned to work on a rotational scheme,” and “with renewables, this configuration may become a problem.”
Rigal does try to hedge, so as to not place blame on renewable energy. But the timing is more than suspect. And, it is known that renewable energies are not reliable. Wind and solar are both highly reliant upon the weather, which is itself not predictable. If wind or sun conditions are not cooperating, energy is not produced.
And, the technology to store wind and solar energy is not yet developed. This means there are periods where renewable energy is producing more energy than the grid needs. There are other times when it does not produce enough to meet the grid’s needs.
Take Texas, for example, who experienced widespread power outages in the Winter of 2021. While other failures occurred, low wind, combined with frozen turbines, resulted in wind energy not contributing to the grid.



