4 Solar Stocks to Watch With Robust Growth & Steady Long-Term Outlook

U.S. solar remains the dominant source of new generation, with solar accounting for 58% of new capacity through Q3 2025 (over 30 GW) and the industry installing 11.7 GWdc in Q3—a 20% year‑over‑year increase—while the EIA expects ~32 GW more to come between Oct. 2025 and Sept. 2026 and only 20% of planned capacity now faces delays. However, near‑term headwinds have risen: the One Big Beautiful Bill Act narrows key Inflation Reduction Act tax credits and introduces Foreign Entity of Concern rules that add procurement and permitting uncertainty, while higher U.S. tariffs and supply‑chain strains have pushed balance‑of‑system costs and labor/EPC expenses materially higher even as module prices fell ~12% YoY. The sector has outperformed the S&P 500 over the past year (+17.7%) and trades at a modest trailing EV/EBITDA of 6.22x versus the S&P’s 18.74x, and Zacks highlights select names—FTCI, CSIQ, TYGO and RUN—with improving sales/EPS estimates, suggesting attractive risk/reward for investors who can navigate policy and tariff uncertainty.

Analysis

U.S. solar growth remains robust: solar accounted for 58% of new U.S. generation capacity through Q3 2025 (>30 GW) and the industry installed 11.7 GWdc in Q3 (up 20% YoY), while the EIA expects ~32 GW of additions between Oct. 2025 and Sept. 2026 and reported planned-capacity delays have eased to 20% from 25% a year ago. These demand-side metrics and improving project timelines support continued volume growth across utility-scale and distributed segments.

Near-term policy and trade headwinds have increased uncertainty. The One Big Beautiful Bill Act (OBBBA) curtails several IRA-era tax credits and introduces Foreign Entity of Concern (FEOC) compliance requirements with Treasury guidance still months away, complicating permitting and procurement; concurrently, higher U.S. tariffs have elevated balance-of-system costs and labor, squeezing project economics despite a 12% YoY decline in module prices.

Cost dispersion is meaningful: residential system prices fell ~3% while commercial and utility costs rose ~9–10% driven by a 50% YoY rise in certain balance-of-electrical-system and racking costs, labor +15%, and EPC overhead/margins up ~40%. The industry has outperformed the S&P 500 over the past year (+17.7%) and trades at a trailing EV/EBITDA of 6.22x versus the S&P's 18.74x, implying valuation compressions and potential upside if policy/tariff risks abate.

Company-level catalysts differ: FTCI shows automation and installer-efficiency positioning with consensus 2025 sales +108.6% and EPS +33.6% (Zacks Rank #2), CSIQ secured a DCO for a large UK 800 MW/500 MW storage project with rising EPS estimates, and Sunrun/Tigo report improving sales/EPS trends and storage-attachment tailwinds; these idiosyncratic drivers matter more while macro policy risk remains unresolved.

Key Decisions for Investors

• Consider selectively overweighting names with concrete project wins and estimate upgrades (e.g., FTCI, CSIQ) that demonstrate technology or permitting advantages, given strong demand indicators and company-specific catalysts
• Avoid broad sector exposure until FEOC guidance and tariff trajectories become clearer; hedge or underweight firms with large balance-of-system/EPC exposure that face the largest margin pressure from tariffs and labor cost inflation
• Exploit valuation dislocation with modest, size-controlled positions or option structures to capture upside if policy headwinds ease, while actively monitoring Treasury FEOC guidance, tariff announcements, module-price trends, and EIA capacity additions