Fuel Tech, Inc. (FTEK) | The Buildout — AI Infrastructure
The Verdict
Fuel Tech designs and supplies pollution-control systems for boilers, turbines, and other stationary combustion sources. Its SCR and NOx-reduction equipment is being specified for gas turbines and reciprocating engines used in on-site data-center power, where Fuel Tech acts as a subcontractor to integrators and turbine or engine OEMs.
| Market Cap | — |
| Revenue (TTM) | $26M |
| Revenue Growth | −0.8% |
| EBITDA Margin (TTM) | -13.3% |
| Net Cash | $21M |
| Earnings Beats | 1 of 5 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- APC backlog reached $14.3 million at June 30, 2026, the largest quarter-end level since 2018; effective backlog was about $17 million after $2.6 million of post-quarter awards.
- Management cites a $75 million to $100 million pipeline for projects integrating SCR technology with power-generation sources.
- About $10.5 million of the June 30 backlog is expected to be recognized in the next 12 months, barring customer-driven delay.
- The anchor SCR project with two GE Vernova turbines has commenced engineering; equipment deliveries begin Q4 2027.
- No debt and $29.6 million of cash, equivalents, and investments as of Q2 2026.
What We’re Watching
- Data-center conversion: one inquiry could convert before end of Q3 2026; prior two Q2 opportunities were lost or delayed.
- Near-term non-data-center APC close: management expects at least $3–5 million of an $8–10 million pipeline by end of Q3 or early Q4 2026.
- FUEL CHEM demonstration restart is planned for mid-Q4 2026; conversion could add $2.5–3 million annualized revenue with material 2027 benefit.
- Q2 margin compression: consolidated gross margin fell to 41% from 46% a year earlier; operating loss widened to $1.6 million.
The orders side of the thesis strengthened: APC backlog is the largest since 2018 and near-term recognition is clearer. Execution remains the open question—two data-center opportunities slipped in Q2, margins compressed, and the biggest contract revenue is mostly 2027. The base case is intact but dependent on announced conversions. Open question: will a data-center award or capacity-reservation agreement close before end of Q3 2026?
Earnings
Q2 2026 consolidated revenue rose 17% to $6.5 million; APC revenue was $2.8 million, up 11%, and FUEL CHEM revenue was $3.7 million, up 21%. Consolidated gross margin fell to 41% from 46% a year earlier. Operating loss was $1.6 million versus $1.3 million, and net loss was $1.2 million, or $0.04 per diluted share.
| Metric | Q1 FY2026 | Q4 FY2025 | Q1 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $6M | $7M | $6M | −4.7% |
| Gross margin | 43.5% | 44.6% | 46.4% | -290bps |
| EBITDA | −$1M | −$1M | −$1M | +75.0% |
| EPS | $-0.05 | $-0.04 | $-0.02 | +97.4% |
| APC backlog | $14.3M | $6.9M | n/a | — |
We are pleased with our performance at the midpoint of the year, and we remain optimistic about the outlook for each of our business segments for full year 2026.— Vince Arnone, President and CEO, August 5, 2026
Management tone: Management's tone shifted from Q1 optimism to a more measured Q2 stance. It directly acknowledged that one data-center opportunity was lost and another delayed, while reaffirming full-year revenue guidance and providing more quantitative sizing for DGI and FUEL CHEM upside.
Management Guidance
Management held 2026 total revenue to exceed 2025, with FUEL CHEM approximating 2025 revenues and APC exceeding 2025 performance excluding data-center awards. SG&A was revised upward to $14.5 million to $15 million from $14 million to $15 million. Data-center awards remain excluded from 2026 guidance and would be additive.
Trajectory
Revenue has been uneven: Q1 2026 consolidated revenue fell to $6.1 million from $7.2 million in Q4 2025, then Q2 2026 revenue rose 17% year over year to $6.5 million. The forward bridge is backlog conversion: APC backlog climbed from $6.9 million at March 31 to $14.3 million at June 30, with about $10.5 million expected in the next 12 months. Margins compressed, so the income statement has not yet reflected the larger order book.
The Model
The model projects FY+1 revenue of $29.0 million and EBITDA of negative $3 million, a -9.9% margin, and FY+2 revenue of $39.5 million with EBITDA of $0 million, a 0.3% margin. The near-term anchor is the $14.3 million APC backlog and the roughly $10.5 million expected next-12-month recognition; FY+2 depends on conversion of the data-center pipeline and additional FUEL CHEM and DGI contribution.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $27M | $29M | $40M |
| YoY Growth | — | +8.6% | +36.2% |
| EBITDA | −$3M | −$3M | $0M |
| EBITDA Margin | -10.9% | -9.9% | 0.3% |
Projections are the median of 5 independent model runs.
Management held 2026 total revenue to exceed 2025, with FUEL CHEM approximating 2025 revenues and APC exceeding 2025 performance excluding data-center awards. SG&A was revised upward to $14.5 million to $15 million from $14 million to $15 million. Data-center awards remain excluded from 2026 guidance and would be additive.
What Could Go Right — and Wrong
- A data-center award or capacity-reservation agreement signed before end of Q3 2026 would begin converting the $75–100 million pipeline into backlog.
- Near-term non-data-center APC closures of at least $3–5 million by end of Q3 or early Q4 2026 would add to the $14.3 million backlog.
- APC backlog conversion of roughly $10.5 million over the next 12 months without customer-driven delays would improve revenue coverage.
- FUEL CHEM demonstration restart and commercial conversion could add $2.5–3 million in annualized revenue at historical FUEL CHEM margins.
- A first commercial DGI contract could add a $500,000 to $1 million system sale, with revenue recognized in 2027.
- Data-center conversion could slip again: two Q2-targeted opportunities were lost or delayed, and FTEK has limited control over funding and timing.
- Customer-driven delays on the $14.3 million APC backlog could push expected next-12-month recognition beyond 2026.
- The base business remains loss-making: Q2 operating loss was $1.6 million, and SG&A is guided at $14.5–15 million against a small revenue base.
- Named 10-K competitors such as Babcock & Wilcox and CECO Environmental compete across SCR, reagent feed, and ammonia-based SNCR categories, potentially limiting FTEK's share of pollution-control scope.
- Regulatory or legal disruption to EPA NSPS could weaken SCR demand for new gas turbines.
Looking Ahead
The next 12 months hinge on conversion, not just pipeline. The earliest catalyst is a possible data-center award or capacity-reservation agreement before end of Q3 2026; if signed, delivery timeframes point to early-to-mid 2027 revenue. Near term, management expects at least $3–5 million of non-data-center APC awards by end of Q3 or early Q4 2026, and about $10.5 million of the June backlog recognized in the next 12 months. The FUEL CHEM demonstration restart is planned for mid-Q4 2026, with material conversion benefit in 2027, and the first commercial DGI contract is targeted for 2026.
- End of Q3 2026Possible data-center award — Tests whether the $75–100 million pipeline converts to booked work or capacity-reservation fee.
- Q3/early Q4 2026Non-data-center APC close — At least $3–5 million of an $8–10 million near-term pipeline expected.
- Next 12 months from June 30, 2026APC backlog conversion — About $10.5 million of the $14.3 million backlog expected, barring customer-driven delays.
- Mid-Q4 2026FUEL CHEM demo restart — Customer restart of six-month demonstration; gates 2027 commercial conversion option.
- 2026First DGI commercial contract — Management target; fish-hatchery proposal could be $500K–$1M sale.
- Q4 2027Midwest utility equipment delivery — First equipment deliveries for two GE Vernova turbine SCR integration; plant operational 2029.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $25M | $27M | $26M | +6.0% |
| Gross Margin | 42.1% | 46.4% | 45.8% | +423bps |
| EBITDA | −$4M | −$3M | −$38M | +31.0% |
| EBITDA Margin | -16.7% | -10.9% | -13.3% | +581bps |
| Net Income | −$2M | −$2M | −$3M | -21.1% |
| Free Cash Flow | −$4M | $2M | −$11M | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)45.8%
- EBITDA Margin (TTM)-13.3%
- Net Margin (TTM)-11.4%
- ROIC-19.3%
- SBC / Revenue1.5%
The Company
Fuel Tech describes itself as a technology company engaged in air pollution control, process optimization, water treatment, and advanced engineering services. APC supplies NOx reduction, SCR, ESP, and flue gas conditioning systems; FUEL CHEM uses TIFI Targeted In-Furnace Injection to control slagging, fouling, and corrosion in coal-fired boilers; and DGI is a pre-revenue water-treatment product line. In Q2 2026, APC revenue was $2.8 million and FUEL CHEM revenue was $3.7 million.
The company operates from an owned headquarters in Warrenville, Illinois, a leased European office in Gallarate, Italy, and a leased warehouse in Aurora, Illinois. It runs an engineering and design-and-supply model: fabrication capacity sits with its supply chain, and Fuel Tech acts as a subcontractor to integrators and turbine or engine OEMs. It depends on a sole-source magnesium hydroxide supplier, Martin Marietta Magnesia Specialties, and lists competitors including Babcock & Wilcox, CECO Environmental, Mitsubishi, and Imerys.
Business Segments
Competitive Landscape
Fuel Tech describes itself as a leading technology company, but in the pollution-control market it faces named competitors including Babcock Power, Babcock & Wilcox, CECO Environmental, Mitsubishi, Imerys, and SUEZ Water Technologies. In the data-center power application, management says FTEK is a subcontractor to integrators and turbine or engine OEMs, not the prime contractor, and its pollution-control scope is a very small fraction of total AI infrastructure spend.
- Babcock & WilcoxNamed in the 10-K as an SCR/reagent feed and ESP retrofit competitor. No order or pipeline figures are provided in the source material.
- CECO EnvironmentalNamed in the 10-K as an SCR/reagent feed and ammonia-based SNCR competitor; also the new CEO's most recent employer. No order figures are provided in the source material.
- MitsubishiNamed in the 10-K as an SCR/reagent feed competitor; not further discussed in the source.
- ImerysNamed in the 10-K as a FUEL CHEM competitor; not further discussed in the source.
- Babcock PowerNamed in the 10-K as an SCR/reagent feed competitor; not further discussed in the source.
Supply Chain
Fuel Tech designs and supplies APC and FUEL CHEM systems; fabrication capacity sits with its supply chain. The source does not show any named neighbor mentioning FTEK by name.
More on FTEK: Earnings recap