First Solar (FSLR) Q1 2026 earnings review
Strong Q1 Beat, But Reaffirmed Guidance Implies Stagnation
First Solar delivered an optically excellent first quarter. Net sales grew 24% YoY to $1.04B, breaking the typical Q1 seasonal slump, while Net Income surged 65% to $347M. Adjusted EBITDA of $520M came in above management's own preview range. However, a deeper look reveals structural challenges: the contracted backlog has shrunk for the fourth consecutive quarter to 47.9 GW, and management's reaffirmed FY26 revenue guidance ($4.9B-$5.2B) implies a year-over-year sales decline against the $5.22B generated in FY25. Profitability remains heavily dependent on Section 45X tax credits, masking thinner core margins.
🐂 Bull Case
First Solar is the undisputed beneficiary of U.S. trade policy. The company's independence from Chinese crystalline silicon supply chains and vertically integrated domestic manufacturing make it the premier choice for developers seeking safe-harbored, tariff-free modules.
Section 45X credits are the engine of First Solar's profitability. With expected credits of $330M-$400M in Q2 alone, the company is generating robust cash flows to fund its capacity expansions and R&D pipelines without tapping debt markets.
🐻 Bear Case
The contracted backlog has declined sequentially from a peak of 66.3 GW in Q1 2025 down to 47.9 GW in Q1 2026. The company is burning through its order book faster than it is replenishing it.
Despite massive capacity expansions, the FY26 revenue guidance implies a deceleration and potential contraction in top-line growth compared to FY25 actuals, reflecting international underutilization and tariff headwinds.
⚖️ Verdict: ⚪
Neutral. The policy tailwinds and cash generation are undeniably strong, providing a rock-solid floor. However, a shrinking backlog, reliant 45X margins, and a flat-to-down revenue outlook limit the near-term upside.
Key Themes
Section 45X Tax Credits Subsidize the Bottom Line
The company reported $520M in Adjusted EBITDA for Q1, but guidance for Q2 clarifies just how reliant this is on government policy: Q2 45X tax credits are forecast between $330M and $400M, underpinning a projected Q2 Adjusted EBITDA of $400M-$500M. The IRA subsidies are effectively funding the entirety of the company's operating profit, shielding it from intense global panel price competition.
Protectionist Trade Policy Moat (Macro)
Management continues to emphasize its 'independence from Chinese crystalline silicon supply chains.' Amidst a highly volatile trade environment with AD/CVD tariffs, FEOC restrictions, and circumvention investigations, First Solar's domestic footprint guarantees compliance and delivery certainty for U.S. utility-scale developers.
The Incredible Shrinking Backlog
First Solar's contracted backlog has been in a sustained decline for four quarters. Standing at 66.3 GW a year ago (25Q1), it fell to 50.1 GW by the end of 2025, and now sits at 47.9 GW in 26Q1. While management previously cited 'patient' and 'selective' booking strategies, the consistent erosion of the order book points to a deceleration in new contract velocity.
Headline Margin Expansion Masks Core Weakness
Management touted 'meaningful margin expansion' in the press release. While gross profit optically improved to 46.5% (up from 40.8% a year ago), this contradicts the underlying reality discussed in previous quarters: core component margins excluding 45X credits remain in the single digits. High U.S. manufacturing costs and international underutilization are being completely obscured by tax credit inflows.
Technology Transition: CuRe and Perovskites
First Solar's long-term defense against commoditization lies in the rollout of its Copper Replacement (CuRe) program, which promises up to 8% more lifetime energy yield, and its ongoing R&D into perovskite tandems (bolstered by Oxford PV licensing). These innovations are essential to justify ASP premiums in the 2027-2028 timeframe once current massive backlog burns off.
Cash Burn from Working Capital and Expansions
Net cash balance decreased significantly from $2.4B at the end of 25Q4 to $2.0B in 26Q1. Management attributed this to seasonal working-capital needs and capital expenditures for the South Carolina finishing facility. While the balance sheet remains fortress-like, the $400M quarterly cash burn highlights the capital intensity required to onshore supply chains.
Other KPIs
Accelerating. Blew past management's Q1 preview range. This metric adds back share-based compensation, 45X tax credit discounts, underutilization, and start-up expenses (totaling $217M in add-backs for FY26 guidance). The wide gap between GAAP Net Income ($347M) and Adjusted EBITDA highlights the heavy adjustments required to normalize earnings.
Decelerating sequentially but accelerating YoY (+24%). The drop from Q4's $1.68B was expected due to seasonality, but the strong YoY growth was driven by higher module volumes sold to third parties, particularly citing record sales in India.
Guidance
Stable to Reversing. Reaffirmed guidance. However, compared to FY25 actual total revenue of approximately $5.22B, the midpoint of $5.05B implies a ~3% year-over-year decline. This represents a break in the aggressive growth trend seen in recent years, largely due to intentional underutilization of international assets (Malaysia/Vietnam) due to tariff constraints.
Decelerating compared to 26Q1 actual of $520M. This is forecasted on the back of 3.4 GW to 4.0 GW in module sales and $330M to $400M in Section 45X tax credits, further emphasizing that credits account for roughly 80% to 85% of the adjusted profit.
Stable. Reaffirmed. With 47.9 GW remaining in the backlog, the company has nearly three years of production visibility at this volume run-rate, though the lack of upward revision suggests international capacity constraints are firm.
Key Questions
Backlog Replenishment Velocity
The backlog has decreased by nearly 18 GW since Q1 2025. Is the company intentionally holding back on bookings to preserve optionality for future ASP increases, or are customers pausing due to macro/tariff uncertainties?
Core Margins ex-45X
With 45X credits driving the vast majority of Adjusted EBITDA, what is the current trajectory of core component gross margins, particularly given the ongoing logistics and tariff headwinds on international modules?
International Underutilization Strategy
FY26 guidance remains constrained by the strategic idling of Malaysia and Vietnam facilities. What specific policy catalysts or reciprocal tariff resolutions are required for management to fully reactivate this capacity?