Solar stocks are shining in premarket trading in New York after the Trump administration announced a new 15% tariff and a price floor on imports of polysilicon derivatives, including silicon wafers, photovoltaic cells, and solar modules. The move is intended to secure the domestic solar supply chain after years of cheap Chinese panels flooding the country, making it uneconomical for domestic manufacturers to compete.

"Polysilicon is the base material underpinning the security of America's semiconductor and solar-power supply chains. Yet for decades, America has allowed foreign countries to weaken United States producers in the polysilicon sector ‑- eroding our economic and national security. Today, I am taking action to put a stop to these practices and revitalize the United States polysilicon sector," President Trump wrote in an overnight executive order.

The Trump administration's order is less a conventional tariff increase and more of a reset of the US solar-module pricing regime. The new framework, combining a 15% tariff with minimum import prices, could lift utility-scale module prices into the low-to-mid 40-cent-per-watt range from roughly 30 cents.

Analysts from several desks, including BMO Capital Markets, Truist Securities, Citi, and others, point to First Solar as the clear winner.

"We expect the immediate market reaction to favor FSLR given enhanced long-term pricing power and terminal value implications, while utility solar-exposed names including NXT, ARRY, SHLS and FLNC could face near-term pressure as investors reassess project economics and deployment costs," BMO analyst Ameet Thakkar wrote.

Thakkar noted, "In this report we analyze the structure and implementation of the new tariff framework, the implications for module pricing and domestic manufacturing economics, potential upside to FSLR valuation and ASPs, the 120-day implementation window, and our continued constructive view on NXT despite likely near-term volatility."

Moses Sutton at BNP Paribas outlined FSLR as the "biggest, long-awaited winner" and highlighted how a new "structural 'floor' for industry" is being created.

What other desks are saying (courtesy of Bloomberg):

Citi

• Analyst Vikram Bagri notes that the polysilicon tariffs are largely in line with expectations and sees upside for First Solar
• "For FSLR, the benefits are a minimum import price for poly/cells/ingots/wafers/modules, which may be adjusted at Commerce's discretion to reflect market conditions, a 15% ad valorem on downstream poly derivatives, application to warehoused inventory plus anti-stockpiling provisions"
• Notes that countries that adopt their own minimum import price may be able to claim favorable treatment for their exports to the US, which would be negative for US firms

Truist Securities

• Analyst Christopher Souther sees First Solar as the biggest beneficiary of the tariffs and notes that the company's module price is below the minimum import price
• "In our view, this further reinforces First Solar's competitive moat, as the company already benefits from a US-based manufacturing footprint, Section 45X tax credits, and existing trade protections"
• Notes that the exemption paths for US module manufacturers may reduce the benefit for First Solar in out years

Barclays

• Analyst Christine Cho sees the polysilicon tariffs raising the cost of imported modules to around $0.44 per watt
• "The Section 232 outcome is more positive for FSLR than we and the Street were expecting and would seem to support ASPs to move somewhere in the low to mid $0.40/w range"

In premarket trading, FSLR is up 4%, Enphase Energy +2%, Array Technologies +2%, SolarEdge Technologies +2%, and T1 Energy +6%. The Invesco Solar ETF (TAN) is up nearly 3%.