Clean Tech 1Q26 Preview: ITC Safe Harbor and Data Center Demand Drive a Bifurcated Outlook

Core Conclusion

The 1Q26 earnings season for Clean Tech reveals a sharp divergence. Near-term demand catalysts from ITC safe harboring (July 4 deadline) and robust BESS/data center orders provide upside for solar manufacturers and select infrastructure names (FSLR, BE, SHLS). Conversely, US residential solar demand is deteriorating, with the exit of a large affiliate partner in early 2Q posing material risk to ENPH and RUN. The current sector valuation does not fully reflect this bifurcation, creating both opportunity and risk.

Evidence Chain: The Two Sides of the Bifurcation

Residential Solar: Structural Headwinds Intensify

US residential solar demand is weakening. The report explicitly states it is "more cautious on full year 2026 US resi solar demand," and notes the exit of a large player at the beginning of 2Q. For RUN, this creates "potential risk to guidance following the exit of a key affiliate partner." ENPH faces similar headwinds: rising interest rates, slowing economic growth, and adverse net metering policies pressure unit economics. The analyst projects ENPH's total MW shipped will decline from 2,832 in 2025 to 2,533 in 2026, and non-GAAP operating margin drops from 27% to 17%. Investment implication: Expect negative earnings revisions for ENPH and RUN; their multiples will compress as the demand outlook structurally weakens.

ITC Safe Harbor: A Near-Term Catalyst for Solar Manufacturers

The July 4 ITC safe harboring deadline is a key near-term catalyst for FSLR, ENPH, SEDG, and RUN. The report describes "safe harboring efforts ahead of the July 4th deadline" as a focus area. For ARRY, safe harbor orders could drive a "beat vs expectations." For FSLR, net bookings are rated "In-line" but the ongoing Section 232 polysilicon investigation limits new bookings; final decision expected in May or June could be a positive catalyst for pricing upside. Investment implication: The safe harbor window creates a short-term order surge that is not fully priced in, providing tactical upside for FSLR and ARRY into earnings.

Data Center and BESS: Pipeline Conversion is the Key KPI

BESS demand remains robust, with the report bullish on "additional BESS demand" and expecting "utility scale renewable project timelines currently remain on track." For BE, framework agreements are flagged as a "likely upside surprise," driven by the upsized ORCL partnership. For SHLS, BESS/data center orders are a "likely upside surprise" after strong 4Q20 order intake. FLNC's data center pipeline conversion is a "likely downside surprise"—revenue and margins will be muted as shipments are weighted to 2H, but the pipeline is expected to convert to orders for 2027 delivery. Investment implication: BE and SHLS offer the most direct upside from data center demand; FLNC offers a later-cycle opportunity but near-term results may disappoint.

Key Risks to the Thesis

• Policy uncertainty: Changes to IRA tax credits, Section 232 polysilicon investigation outcomes, and tariff increases could upend the safe harbor benefit and pressure margins.
• Residential solar demand headwinds: Rising interest rates, slowing economic growth, and adverse net metering policies continue to pressure unit economics and volumes—this risk is not fully priced into residential names.
• Operational execution: Ramp of new manufacturing lines, inventory destocking cycles, and margin compression from competitive pricing could hurt near-term results.
• Data center pipeline conversion delays: Near-term revenue and margins for FLNC and others may be muted if order conversions slip past 2H 2026.

Valuation and Trading Implications

The sector's valuation appears to price in a stable recovery, but downside risks to residential names and upside opportunities in BESS/data center names are not fully reflected.

• ENPH (Underweight, PT $28): PT lowered from $30 to $28 based on weaker residential solar outlook. The DCF-derived PT reflects a 9.7% CAGR through 2035 and EBITDA margin peaking at 35% in 2028. Consensus EPS estimates for FY26e are $1.91 (MS $1.51) and EBITDA estimates are $296mm (MS $140mm)—material downside exists.

• EVGO (Equal-weight, PT $3.50): Risk/reward balanced. Winter weather will likely impact 1Q throughput, creating a potential miss vs consensus. The DCF-derived PT assumes 23% revenue CAGR from 2026-2035. Near-term weather risk is not fully discounted, but long-term secular growth is priced in.

• Notable upside opportunities: BE and SHLS offer the most explicit data center/BESS exposure with likely upside surprises on orders. FSLR's safe harbor and Section 232 resolution are positive catalysts.

Appendix Data Summary