The Iberian Peninsula's Energy Secret: A New Paradigm for Europe
The energy landscape in Europe is undergoing a quiet revolution, and the Iberian Peninsula is at the forefront of this transformation. While much of the continent grapples with soaring energy prices and the ongoing energy crisis, Spain and Portugal are quietly dodging the bullet, offering a compelling case study for a more sustainable and resilient energy future. But what's their secret?
It's not about ideology or ambition, but rather a strategic shift in system design. The Iberian Peninsula has spent years expanding renewable energy generation, particularly wind and solar, while also operating with relatively limited interconnection to the rest of the European grid. This has created an 'island effect', where local market dynamics are less dominated by broader continental price signals.
The Merit Order System and the Cost of Renewables
In both Spain and Portugal, electricity prices are still determined by the Merit Order system, where the last unit cost of generation sets the wholesale price. However, the key difference lies in the dominance of renewables. With near-zero marginal costs, renewables tend to lower average prices when they run, pushing out more expensive fossil generation.
This is where the misunderstanding around the cost of renewables comes in. The common perception is that renewables are expensive because they are operating within a pricing framework dominated by fossil fuels. But in the Iberian Peninsula, the link between electricity pricing and gas markets is weakened, allowing renewables to shine.
The Benefits of High Renewable Penetration
In Spain and Portugal, high renewable penetration combined with more limited exposure to continental gas-driven price formation means that electricity prices are more often shaped by low-cost generation. When wind and solar dominate supply, prices reflect their economics rather than those of imported gas.
This is why prices can remain comparatively lower and relatively stable even when gas markets are volatile. It's not because renewables are subsidized into artificial competitiveness, but because, once built, they produce electricity at very low marginal cost. The key shift is not technological but structural.
France: A Parallel Example
France offers a parallel example through a different pathway. Its electricity system, anchored in nuclear power and with only a small share of fossil generation, is similarly less exposed to gas price fluctuations. The technology mix is different, but the outcome is comparable: lower and more stable electricity prices during periods of fossil fuel volatility.
The Stability Question
Concerns about reliability often accompany discussions of high renewable penetration, but recent experience in Spain challenges some of those assumptions. Following the much-debated blackout, official conclusions made clear that renewables were not the cause. The issue lay elsewhere, reinforcing a broader point that system stability depends on grid management, flexibility, and infrastructure, not on the mere presence of renewable generation.
Electrification as a Price Strategy
All of this points to a broader conclusion that is still not fully reflected in public perception. Electrification is often presented as a cost burden, a necessary step for decarbonization that comes with higher prices. But in systems where fossil fuels no longer dominate price formation, the opposite can be true.
Electricity becomes cheaper because it is no longer tied to volatile fuel markets. Price stability improves because fewer external shocks feed directly into the system. Over time, this creates a structural advantage for economies that have reduced their reliance on imported fossil fuels. This is not about short-term fluctuations but about long-term exposure.
The Cost of Getting It Wrong
The divergence now visible across Europe reflects choices made over many years. Some countries invested early in low-carbon electricity systems and reduced their reliance on fossil fuels. Others moved more slowly, or maintained stronger links between electricity pricing and gas markets. Those choices are now showing up directly in price outcomes.
It would be misleading to suggest that this was a simple or risk-free transition. But it is becoming increasingly clear that the cost of inaction is not neutral. It is simply deferred, and when it arrives, it tends to arrive through higher prices and greater volatility.
From Perception to Reality
Europe cannot control global gas markets, nor can it eliminate geopolitical risk. What it can do is decide how exposed it wants to be to both. The idea that renewables are inherently expensive belongs to a system where fossil fuels still dominate price formation. As that system evolves, so too does the reality of cost.
The Iberian Peninsula offers a glimpse of that reality. A system with high renewable penetration, supported by the right market conditions, can deliver lower prices and greater insulation from external shocks. Electrification, in that context, is not just a climate strategy but a hedge against volatility.
And the sooner that becomes widely understood, the sooner the debate can move beyond outdated assumptions and toward a system that is not only cleaner but fundamentally more resilient. Personally, I think the Iberian Peninsula's success is a powerful reminder that the future of energy is not about choosing between renewables and fossil fuels, but about designing systems that are flexible, resilient, and sustainable. What makes this particularly fascinating is the potential for other regions to follow suit, creating a more diverse and dynamic energy landscape. From my perspective, the key takeaway is that the cost of inaction is not just financial but also environmental and social. It's time to embrace the change and build a more sustainable future.
