The interest rate storm sweeps through the U.S. stock market's photovoltaic sector: Deutsche Bank maintains a bullish outlook on First Solar, can 2.1 billion net cash build a "safe haven"?
Deutsche Bank upgraded First Solar's rating from "Hold" to "Buy," raising the target price from $245 to $272. Analysts believe that despite rising interest rates leading to a general decline in the photovoltaic sector, First Solar has strong fundamentals with $2.1 billion in net cash and policy protection stemming from anti-China sentiment, which is expected to enhance performance in the second half of the year
According to Zhitong Finance APP, Deutsche Bank has upgraded First Solar (FSLR.US) from "Hold" to "Buy," raising the target price from $245 to $272. The bank stated that the stock has fallen 27% since June 1, creating an opportunity for investors to enter the stock before expecting stronger performance in the second half of the year.
Analyst Colin Blanchard indicated that the upgrade is based on increasing anti-China sentiment and favorable U.S. policies, which provide an additional layer of protectionism for First Solar. She expects momentum to gradually build in the coming weeks before the clarity of the 232 tariff policy, as market expectations are likely to have a positive impact on the company.
Blanchard wrote that for investors looking for a U.S.-based panel manufacturing company with a strong balance sheet, First Solar "remains one of the fundamentally strong companies," with $2.1 billion in net cash.
As interest rates rise, solar sector stocks generally fell on Tuesday, clearly due to rising inflation expectations reducing the likelihood of Federal Reserve rate cuts; solar is one of the sectors most sensitive to interest rates, as many projects are financed through debt.
On Tuesday, within the photovoltaic sector, SolarEdge (SEDG.US) fell 6.4%, Sunrun (RUN.US) fell 5.2%, Array (ARRY.US) fell 4.6%, Canadian Solar (CSIQ.US) fell 4.5%, and Enphase Energy (ENPH.US) fell 3.1%.
Interest Rates as the "Sword of Damocles" for the Photovoltaic Sector
Solar energy is one of the sectors most sensitive to interest rates in the U.S. stock market, a characteristic stemming from its unique business model—most solar projects heavily rely on debt financing. From large ground-mounted power plants to distributed rooftop photovoltaics, developers typically need to cover the high upfront costs of equipment and installation through bank loans, bond issuance, or project financing. When interest rates rise, financing costs also increase, directly eroding the internal rate of return (IRR) of projects, making some projects economically unfeasible.
In the capital structure of solar projects, debt financing usually accounts for 50% to 65% of the share. According to industry data, when the risk-free interest rate rises by 2 percentage points, the levelized cost of electricity (LCOE) for renewable energy projects may increase by up to 20%, while traditional gas turbine projects only rise by about 11%. This means that interest rate changes have a far greater impact on solar projects than on traditional energy.
In practice, the cost of obtaining long-term debt capital from banks for solar developers typically ranges between 10.5% and 14%. Once interest rates exceed the critical point of 11.5%, the IRR of many projects will fall below the minimum return requirement of 15% for equity investors, forcing projects to be shelved.
Despite the global solar industry's debt financing reaching a decade-high of over $8.9 billion in the first quarter of 2026, Raj Prabhu of Mercom Capital Group believes this is mainly due to "improved policy clarity and strong demand." However, the interest rate environment remains a Damocles sword hanging over the sector.
Analysts generally believe that the solar sector's sensitivity to interest rates is unlikely to change in the short term. If the Federal Reserve delays interest rate cuts due to inflationary pressures or even resumes rate hikes, the valuation pressure on solar stocks will persist. Conversely, once interest rates enter a downward trend, the sector is expected to see significant valuation recovery—after all, the long-term growth logic of solar energy (energy transition, policy support, cost reduction in technology) has not wavered.
For investors, in the current high-interest rate environment, prioritizing targets with strong balance sheets, ample cash, and low reliance on debt financing (such as First Solar) may be a wise strategy to navigate through the cycle. In contrast, developers and installers that are highly leveraged and reliant on external financing may face greater survival challenges in the interest rate storm
