Key Takeaways:
A surge in European demand for rooftop solar has lifted sales for German inverter maker SMA Solar by 27 percent in its home and business division, but the boom is creating a paradox where rapid buildout is crushing the profitability of solar power itself.
"It is not yet foreseeable whether this demand effect will have a sustained impact on the sales development of the home and business solutions division," Chief Financial Officer Kaveh Rouhi said in an analyst presentation, acknowledging the demand spike while hinting at underlying uncertainty.
The sales data from SMA Solar, whose shares have nearly doubled since late February, points to a clear consumer trend. First-quarter sales in its home and business unit hit 61 million euros, up from 48 million euros a year prior, as households race to insulate themselves from high fuel costs linked to the Iran war. This trend is mirrored in the electric vehicle market, where European sales climbed 27 percent in April. However, this rush to install is creating structural problems in the power market. Analysis from research firm Pexapark shows that solar capture factors—the actual price solar farms receive relative to baseline power prices—are falling sharply. In Germany, the share of solar generation produced during negative price periods rose to 46.8 percent in April, up from 32.6 percent a year earlier.
The situation creates a difficult balancing act for the continent's energy transition. While the demand for solar hardware from companies like SMA Solar is booming, the economic case for building new large-scale solar farms is weakening. This is happening as the European Central Bank is expected to hike rates in June to fight war-driven inflation, making financing for capital-intensive clean energy projects more expensive and further complicating the investment picture.
Geopolitical tensions have been a significant driver of the solar boom. SMA Solar noted in an analyst presentation that rising demand and positive market signals for residential and commercial systems were directly linked to the conflict. This rush for energy independence comes after a period of slower growth in 2025, marking a sharp reversal. The company now expects its full-year sales to be in the upper third of its 1,475 million to 1,675 million euro forecast.
The demand is not isolated to the solar sector. The European EV market saw sales rise 27 percent year-over-year in April to over 400,000 units, according to Benchmark Mineral Intelligence. "Europe remains the main engine of growth," said Benchmark data manager Charles Lester, pointing to rising gasoline prices and government incentives as key drivers.
The flood of new solar capacity is creating its own challenges. During sunny periods, especially on weekends or holidays when industrial demand is low, the grid is overwhelmed with solar power, pushing wholesale electricity prices into negative territory. This means solar generators have to pay to put electricity on the grid.
According to Pexapark, this trend is accelerating. France saw the largest drop in solar capture factors, with a 75 percent year-on-year decline in April. Spain, which has a rapidly expanding solar fleet, saw a pronounced fall in February, a month not typically associated with oversupply. "Spain’s rapidly expanding solar fleet, combined with limited storage and constrained export capacity during periods of regional oversupply, is increasingly exposing solar assets to both seasonal and structural price pressure," explained Pexapark analyst David Battista.
This article is for informational purposes only and does not constitute investment advice.
