Spain's Nuclear Standoff: Closing Reactors vs. Extending Lifespans

Nuclear power doesn't shut down: the fight to extend reactor lifespans

The debate over nuclear energy has returned to the forefront with a disorienting paradox: while some countries demonize it and plan to close their reactors, others maintain it as the backbone of their electricity mix. The discussion, which has lasted over a year, begins with a video defending nuclear energy as "the safest, most reliable, and cleanest there is" and evolves into a frontal clash between those demanding immediate shutdowns and those warning that doing so will increase gas consumption and raise bills.

The first front is waste. One participant proposes building bunkers in the Spanish desert to store debris, convinced they will take centuries to fill. The rebuttal is swift: according to the debate, five serious nuclear accidents have been recorded since 1957, and the Chernobyl example serves as a reminder that a radioactive cloud knows no borders. The technical counteroffensive trinc quickly: it is argued that the reactor was not for electricity production but for military use, with a flawed design and human errors during the stress test.

Why does Spain close nuclear plants while France keeps them?

The inconsistency between countries is the main source of discomfort. Questions arise about why Spain demonizes a technology that France, China, or the United States maintain and expand. The prevailing answer in the exchange is that the energy mix responds to political decisions, not just technical ones: green parties in Germany and their equivalents in Spain push to discourage nuclear power, while gas consolidates as a backup, with higher emissions and costs.

The German case is cited as a warning. After abandoning nuclear power, Germany has had to build coal plants and burn gas profusely to maintain grid stability. The repeated argument is that nuclear power depends on the socio-economic environment: with legal certainty, a prevention culture, and industrial development, it works; without them, risk skyrockets.

Storage: the piece no one wants to pay for

Here the debate becomes technical and splits in two. One side argues that keeping old reactors open blocks investment in renewables and storage. The other responds that installing more renewable capacity without batteries drives up hours of zero or negative prices, meaning energy is wasted. Pumped hydro storage is already in use, yet negative prices have been reached: a sign that injection capacity is lacking.

The figure ordering the discussion is Almaraz: according to a calculation circulating in the debate, one reactor can produce 7,000 GWh per year. For some, this amount is replaceable with renewables and storage in two and a half years. For others, without batteries to shift production to demand hours, each additional megawatt of renewable energy only adds chaos to the system. The full calculation, broken down item by item, reveals a surprising gap.

The hidden cost: paying for what wasn't built

The bill is another battlefield. It is denounced that Spain has paid for twenty years for nuclear plants that were never built and will now pay to decommission those that exist and are amortized, only to build others that may never produce. Added to this is the tariff deficit, a mechanism that finances electricity companies selling below cost and does not prevent record profits year after year.

The floating conclusion is uncomfortable: it does not matter whether coal, gas, or uranium bars are burned, what cannot be is that consumers always pay the bill. The question remains open: how much of this standoff responds to technical criteria and how much to pure political demagoguery?