Solar Energy Stocks Surge on Strong Q2 Results and U.S. Manufacturing Momentum

Solar energy stocks are on the rise today, fueled by better-than-expected second-quarter earnings from leading players like Sunrun (NASDAQ: RUN) and First Solar (NASDAQ: FSLR), alongside fresh optimism over U.S.-based manufacturing after a new partnership was announced between Corning and a major solar company to produce fully American-made solar panels.

Sunrun Shines with Strong Storage Growth and Record Profitability

Residential solar provider Sunrun delivered a blowout Q2, sending its stock higher as the company crushed Wall Street expectations across the board. Sunrun posted revenue of $569.3 million, beating analyst estimates by 4%, and achieved a non-GAAP EPS of $1.07, far exceeding the expected loss of $0.12 per share.

Management attributed this strength to the soaring adoption of battery storage, with a record 70% attachment rate among new solar customers, up sharply from prior quarters. This growing integration of storage is helping Sunrun unlock new revenue streams through virtual power plant (VPP) programs, which now boast over 71,000 customers and 354 MW of capacity.

Operationally, the company saw meaningful efficiency gains. Creation costs per subscriber fell, leading to a 17-point margin improvement year-over-year. Meanwhile, Sunrun’s annual recurring revenue rose 22.2% to $1.78 billion, a sign of growing long-term value.

CEO Mary Powell emphasized that the quarter’s record profitability was the result of focusing on high-margin offerings and strategic tax planning. “We’re growing storage, cutting costs, and securing multi-year tax benefits to prepare for the 2028 ITC step-down,” she said.

First Solar Sees Tailwinds from Policy and U.S. Demand

First Solar, another major U.S. solar manufacturer, also impressed investors with Q2 revenue of $1.10 billion, up nearly 9% year-over-year and ahead of analyst forecasts. Its GAAP earnings of $3.18 per share came in nearly 20% higher than expectations, driven by strong U.S. demand and favorable policy developments.

CEO Mark Widmar pointed to a tightening regulatory environment around foreign solar imports as a major driver, saying the shift has “solidified First Solar’s competitive position” in the domestic market. The company is also continuing to expand U.S. manufacturing, with a new Alabama plant ramping up operations.

In a nod to sustained demand, First Solar raised its full-year revenue guidance by 6%, now targeting $5.3 billion. Despite some margin compression—operating margin dipped to 33% from 36.9%—investors appear to be prioritizing revenue growth and policy-driven tailwinds.

Boost from U.S. Manufacturing Deal: Corning Partnership Announced

Adding to the bullish sentiment, Corning and a U.S.-based solar firm announced a landmark deal to produce fully American-made solar panels by 2026. The partnership, reported by Reuters, aims to secure a domestic supply chain in response to federal incentives promoting clean energy independence.

The move is widely seen as a strategic win for solar companies trying to qualify for bonus tax credits under the Inflation Reduction Act’s domestic content provisions. Analysts view this development as a validation of long-term investment in U.S. solar infrastructure and a potential earnings driver for firms like First Solar.

Investor Takeaway: Policy and Storage Drive Momentum

The strong Q2 earnings from both Sunrun and First Solar—and the continued shift toward domestic solar manufacturing—signal a turning point for the solar sector after a choppy few years. Key themes like battery storage, grid services, tax planning, and U.S. content requirements are now converging to create real financial momentum.

Investors are reacting positively, with both RUN and FSLR stocks trading up today. While macroeconomic headwinds and policy uncertainty remain, the combination of record profitability, strategic positioning, and federal support is breathing new life into solar equities.

Bottom line: Solar isn’t just about the sun anymore—it’s about storage, strategy, and smart manufacturing.