Since the outbreak of the Iran-Iraq War, the global energy market has been plunged into unprecedented turmoil. Oil, natural gas, and electricity prices have soared like wildfire, forcing European households and businesses to bear the most severe energy cost pressures in history. However, the crisis has also spurred profound changes—demand for rooftop solar systems has exploded across the European continent, and an energy transition driven by the unexpected events of war is quietly unfolding on the rooftops of ordinary homes.

Survival instinct under energy panic

The outbreak of war directly exposed the fragility of Europe's energy system. For a long time, the continent's deep dependence on imported oil and natural gas left it virtually defenseless in the face of geopolitical conflicts. With the outbreak of war in Iran, the energy supply chain was instantly strained, and soaring electricity prices became an inescapable nightmare for every household. It is against this backdrop that rooftop solar systems have rapidly transformed from an "environmentally friendly option" into a "basic necessity."

Yannick Norden, co-founder of the German private solar equipment wholesaler Solarhandel24, astutely pointed out that the war merely exposed a long-standing problem—energy dependence—for which European governments had been walking into a trap. This statement resonates with countless European families: rather than passively enduring the repeated exploitation of a volatile market, they should proactively take control of their own energy resources.

Data Speaks: The Real Picture of Doubling Demand

According to interviews with several energy equipment wholesalers and renewable energy utilities in Germany, the UK, and the Netherlands, demand for solar systems from homeowners has more than doubled among some industry players since the outbreak of war in late February. This is not a fleeting short-term fluctuation, but a powerful wave reshaping the landscape of energy consumption in Europe.

Take Solarhandel24 as an example. The company's net sales in March more than tripled compared to the same period last year, reaching nearly 70 million euros, or about 82 million US dollars. Even more remarkably, the company expects to maintain this three-fold growth this month, reaching 60 million euros. To cope with this surge in demand, Solarhandel24 plans to hire approximately 85 new employees, representing one-third of its total workforce. Meanwhile, the company has stockpiled approximately 500,000 solar panels in recent weeks. While this is a costly decision, it is undoubtedly worthwhile given that full-year net sales are expected to climb from 250 million euros last year to approximately 400 million euros.

German energy company Enpal has followed a nearly identical growth trajectory. Its orders in March increased by 30% year-on-year to €130 million, while April is expected to see a 33% increase, reaching approximately €120 million, driven by rooftop solar installations. Enpal CEO Mario Kohler's statement is highly compelling: "This is related to Europe's resilience. Just as Europe must be able to defend itself, we must also be able to supply our own energy." Equating energy independence with defense capabilities underscores the profound impact this war has had on Europe's understanding of energy.

Energy storage solutions: a closed loop from power generation to power consumption

It's worth noting that this solar energy boom is not simply a surge in solar panel installations. A growing number of European homeowners are choosing to combine solar panels with batteries and electric vehicle wall-mounted enclosures to build complete home energy systems. The core logic behind this approach is: generating electricity during the day and storing surplus power for use at night or on cloudy days, thus truly achieving de-gridization or reducing the burden on the power grid.

This trend has directly driven demand for energy storage technology. An executive at a Dutch solar energy company revealed that demand for energy storage technology has increased by 40% to 50%. E.ON, Europe's largest energy network operator, also stated that customer demand has almost doubled year-on-year, and this growth cannot be explained by purely seasonal factors. In other words, the geopolitical uncertainty brought about by war is fundamentally changing consumers' energy consumption behavior.

Policy support and structural turning point

Besides the direct impact of war, policy adjustments in some countries are also fueling the rooftop solar energy boom. Germany's upcoming amendments to its Renewable Energy Sources Act are seen by many industry insiders as another significant driving factor. For the average household, the installation cost of a rooftop solar system typically ranges from €10,000 to €20,000, and the level of policy support directly determines the length of the investment payback period.

However, this surge in demand did not occur during a period of rapid industry growth. According to data from the industry lobbying group Solar Power Europe, the growth rate of new solar installations in Europe had already slowed in 2025, with weak residential demand being the main drag, due to the gradual withdrawal of support programs. Just when industry confidence was low, the energy crisis brought about by the war acted as a shot in the arm, revitalizing the end-market.

Shares of SMA Solar, the world's third-largest solar inverter manufacturer and one of the few remaining equipment producers in Europe, have risen by about 50 percent since the start of the war. This capital market signal, coupled with increased orders from businesses, suggests that the industry is entering a long-awaited boom. The head of solar and heating at UK-based OVO Energy went even further, stating that the surge in demand is a structural shift, and that current geopolitical events are accelerating, not causing, this shift. The division's sales in April were approximately ten times that of the same period last year—a figure that should make any skeptic reconsider.

Made in China: The Shadow of Overcapacity Amidst the Feast

However, this rooftop frenzy in Europe cannot mask the deep-seated contradictions within the global solar industry. Chinese solar manufacturers have made it clear that any war-related increase in global demand is unlikely to significantly alleviate the industry's overcapacity problem. The reason is simple—China's production capacity alone is sufficient to meet nearly twice the expected global demand this year.

This is a sobering reality: demand in Europe is soaring, but the structural oversupply remains. Nearly 90% of solar panels come from China, while Europe's own manufacturing capacity is extremely limited. This means that although the end-installation market is booming, profit margins in upstream manufacturing will continue to be suppressed by overcapacity. For Europe, this dependence on foreign countries hasn't fundamentally changed due to the war; it has simply shifted from oil and gas to solar equipment.

Jannik Schar, co-founder of the German renewable energy company 1Komma5Grad, is keenly aware of this. He points out that the surge in demand highlights how geopolitical shocks can quickly reprice renewable energy. He also recalls that solar demand was even stronger during the 2022 energy crisis. These recurring energy crises are repeatedly proving the validity of the renewable energy industry.

Opportunities and Unfinished Paths Amidst Crisis

The Iran-Iraq War was undoubtedly the direct trigger for this solar energy boom, but it wasn't the root cause. What truly propelled European households towards rooftop solar power was the desire for energy independence, the fear of volatile markets, and the pursuit of controllable costs. The war reopened the wounds of the old system, and solar energy became a tool for households to heal themselves.

However, the sustainability of this crisis-driven transformation still depends on multiple factors. Policy stability, declining costs of energy storage technology, the supply of installation workers, and the suppressive effect of China's overcapacity on global prices will all jointly determine whether rooftop solar power can truly evolve from a temporary fad into a regular part of the European energy system. What is certain is that when the smoke of war clears, the solar panels already installed on the rooftops of thousands of European homes will continue to generate electricity silently on every sunny day, serving as a silent witness to the intertwined geopolitics and energy transition of this era.