The energy ahead: China's wind power records, European battery chemistry, and Spain's solar challenge

The world of energy is moving faster than many realise. And I'm not talking about promises or talking-shop debates. I'm talking about concrete figures, non-stop factories, and a race in which China has just left even its toughest rivals gobsmacked.

In 2025, Beijing installed more new wind capacity than the United States has accumulated in its entire history. Yes, you read that right. A colossal energy unit that rewrites the rulebook. While wind turbines are sprouting like mushrooms over there, here in Europe we're focusing on another critical link: battery chemistry for electric cars. Because generating renewable energy is pointless if we can't store it efficiently.

The quiet miracle of wind power and what Spain can learn

What's happened in China is no accident. They've been investing like crazy for years, but 2025 was a quantum leap. No one saw it coming with such intensity. And don't get me wrong – I'm not saying everything's perfect: China's huge renewable investments also hide local tensions, debt, and increasingly strained geopolitics. But in terms of pure installed capacity, the gap is now an abyss.

And Spain? Here we have a resource they'd envy: the sun. Solar energy is enjoying a second youth, but we're still dragging grid problems, bureaucracy, and planning that sometimes feels stuck in the '90s. Yet there are reasons for optimism. More and more homes and industries are opting for self-consumption, and panel prices keep falling.

• China dominates onshore and offshore wind: in 2025 it surpassed 400 GW of cumulative capacity.
• Europe is betting on new chemistry batteries (lithium-sulphur, solid-state) to avoid dependence on Asia.
• Spain has the highest solar potential in the EU, but urgently needs distribution grid reforms.

The battery battle: Europe refuses to be left behind

While Beijing grabs headlines with its windmills, another crucial chapter is being written in German and French labs. The next generation of electric car batteries will look nothing like today's. I'm talking about cells with higher energy density, less cobalt use, and a lifespan that could double that of current batteries. Several European manufacturers already have prototypes running in real-world conditions. The goal: by 2028, an energy unit stored in Barcelona or Stuttgart should compete on price and performance with the best China has to offer.

And why does this matter? Because renewable energy is intermittent. Without large-scale storage, we'll keep burning gas on days without wind or sun. Battery chemistry, ultimately, is the key that will finally shut the door on fossil fuels.

The reality behind the Asian giant and our opportunity

Not everything is golden in the wind power empire. China's huge renewable investments also cause community displacement, local environmental impacts, and a power dynamic that unnerves Brussels. But denying their achievements would be as blind as it is ridiculous. What they've done in wind capacity in a single year would take Europe a decade to match.

So here we are, at a fascinating crossroads: on one side, the necessary partner (China) selling us cheap panels and wind turbines; on the other, the urgency to develop our own technology (batteries, smart grids) so we don't depend on them forever. And in the middle, Spain, with its endless sunshine and a wind industry that can still punch above its weight.

The energy of the future won't be a single colour or a single country. It will be a mix of Chinese wind, European chemistry, and Spanish sun – provided we get our act together. Because records are all well and good, but what really matters is that when you flick the switch five years from now, that electricity is cleaner, cheaper, and more our own.