Generac Holdings Inc. (GNRC) | The Buildout — AI Infrastructure
The Verdict
Generac designs and builds power-generation equipment and energy-technology systems. Its commercial and industrial line includes large-megawatt diesel generators that provide emergency backup power to data centers, plus mobile power, telecom backup, and battery storage. In the AI buildout, these generators are the physical safety layer that keeps data centers running when grid power fails or degrades; Generac is also bringing enclosures, packaging, and switchgear in-house to deliver complete backup-power systems rather than bare generators.
| Market Cap | — |
| Revenue (TTM) | $4.4B |
| Revenue Growth | +0.6% |
| EBITDA Margin (TTM) | 13.0% |
| Net Debt | $1.2B |
| Earnings Beats | 5 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Data center backlog reached $1.6 billion at Q2 2026, with roughly $1 billion of new orders over 90 days.
- The first hyperscale supply agreement includes commitments totaling nearly $700 million for 2027 deliveries.
- C&I segment guidance was raised to low 30s percent for 2026, with Q2 C&I sales up 29% year over year.
- Generac lead times are 40–45 weeks versus competitor lead times of 70–80 weeks and sometimes 2 years.
- Management says it has a path to roughly triple large-megawatt assembly and packaging capacity from a $1.25 billion base over the next 12 months.
What We’re Watching
- Second hyperscaler product-specific terms and volumes are still under negotiation; management promised an update over the next several weeks.
- The $1.6 billion data center backlog contains no 2028 orders and is roughly $1.35 billion scheduled for 2027.
- Sussex first product is expected in August 2026 with production ramp by end of Q3 2026; Belvidere is expected operational in Q1 2027.
- Tariff refunds added about 6 points to Q2 adjusted EBITDA margin; the full-year guide assumes new tariffs fully offset further recovery.
The data-center story has strengthened on the demand side: backlog, hyperscaler signatures, and guidance have all moved earlier and larger. The remaining uncertainty is execution—converting the second hyperscaler into firm backlog and tripling capacity on schedule while holding lead times and margins. The open question is whether Hyperscaler #2 finalizes at or above the first agreement's nearly $700 million and extends visibility into 2028.
Earnings Beat
Second-quarter revenue was $1.17 billion with gross margin at 44.5%. Net income was $143 million. The company said data center revenue surpassed $100 million in the quarter, and the data center backlog reached $1.6 billion.
| Metric | Q2 FY2026 | Q1 FY2026 | Q2 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $1.2B | $1.1B | $1.1B | +10.6% |
| Gross margin | 44.5% | 38.7% | 39.3% | +520bps |
| EBITDA | $210M | $173M | $160M | +31.4% |
| EPS | $2.41 | $1.24 | $1.25 | +93.5% |
| Data center backlog | $1.6 billion | >$700 million | n/a | — |
We don't have any of that second hyperscaler at all in the $1.6 billion at this point.— Aaron Jagdfeld, July 29, 2026
Management tone: Management's tone shifted from confident in Q1 to more aggressive and operational in Q2. On the Q2 call, management used direct language on capacity and engine supply, called the project funnel 'embarrassingly large,' and said the C&I target may be 'crushed' possibly by next year.
Management Guidance
For full-year 2026, management guided to mid-to-high teens consolidated net sales growth, low 30s percent C&I segment growth, high single digits Residential growth, and adjusted EBITDA margin of 18.5%–19.5% excluding tariff refunds or 20%–21% including refunds. Gross margin including refunds is expected around 40%, free cash flow approximately $350 million, and capex approximately 4.5% of sales. Q3 net sales are expected to grow in the high teens percent range with Q4 accelerating; Q3 EBITDA margin is expected similar to Q2 excluding tariff recovery, with Q4 improvement.
Trajectory
Revenue accelerated into the latest quarter: Q2 revenue was $1.17 billion, up 10.8% sequentially, and gross margin rose to 44.5%, with tariff refunds contributing about 6 points. The mix is shifting toward faster-growing C&I, which grew 29% year over year while Residential declined 2%. Excluding tariff refunds, adjusted EBITDA margin improved about one point year over year; the headline margin expansion was flattered by the refund.
The Model
The model projects FY+1 revenue of $4,955 million and EBITDA of $932 million, an 18.8% margin. FY+2 revenue is $5,850 million with EBITDA of $1,112 million, a 19.0% margin. The near-term is anchored on data center backlog converting into revenue through 2027; the second-year step-up assumes continued C&I growth and capacity expansion.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $4.2B | $5.0B | $5.8B |
| YoY Growth | — | +17.7% | +18.1% |
| EBITDA | $484M | $932M | $1.1B |
| EBITDA Margin | 11.5% | 18.8% | 19.0% |
Projections are the median of 5 independent model runs. The model’s revenue sits 4.0% above analyst consensus.
For full-year 2026, management guided to mid-to-high teens consolidated net sales growth, low 30s percent C&I segment growth, high single digits Residential growth, and adjusted EBITDA margin of 18.5%–19.5% excluding tariff refunds or 20%–21% including refunds. Gross margin including refunds is expected around 40%, free cash flow approximately $350 million, and capex approximately 4.5% of sales. Q3 net sales are expected to grow in the high teens percent range with Q4 accelerating; Q3 EBITDA margin is expected similar to Q2 excluding tariff recovery, with Q4 improvement.
What Could Go Right — and Wrong
- Second hyperscaler terms finalize at or above the first agreement's nearly $700 million and enter backlog with 2027–2028 schedules.
- 2028 orders begin entering backlog, extending visibility beyond the current $1.35 billion 2027 schedule.
- Sussex first product ships in August 2026 and production ramps by end of Q3; Belvidere becomes operational Q1 2027.
- C&I EBITDA margins progress toward the mid-to-high teens by 2028 as packaging moves in-house and volume scales.
- U.S. engine production or co-investment is announced, reducing single-source supply risk.
- Second hyperscaler final terms land smaller or later than management's 'as big or bigger' characterization; none is in backlog yet.
- Capacity delays or component shortages slow the Sussex ramp, Belvidere start, or the second and third source plans.
- Competitor backlogs are already deep: Caterpillar's backlog reached a record $63 billion and Cummins is taking orders into 2028, underscoring the competitive intensity around Generac's 40–45 week lead-time advantage.
- Tariff refunds roll off and new tariff offsets are smaller than assumed, reducing the full-year margin.
- Residential demand remains weather-sensitive; Q2 outages ran more than 30% below the long-term baseline, while management expects H2 benefits from easier prior-year comparisons and price realization.
Looking Ahead
The next twelve months are defined by conversion: finalizing the second hyperscaler's terms, booking 2028 orders, and executing the capacity build. Management has committed to a second-hyperscaler update over the next several weeks. Sussex starts in August 2026 and ramps by end of Q3; Belvidere is expected operational in Q1 2027; and the company has a path to triple assembly and packaging capacity from a $1.25 billion base over roughly the next 12 months.
- Next several weeksSecond hyperscaler terms update — Tests whether 'as big or bigger' volumes enter backlog and extend into 2028.
- August 2026Sussex first product — First large-megawatt generator expected down the line; production ramp follows.
- End of Q3 2026Sussex production ramp — Production ramp start validates the pulled-forward capacity plan.
- Q4 2026Q4 data-center revenue ramp — Tests the H2 $250 million data center shipment plan and FY2026 nearly $450 million target.
- Q1 2027Belvidere operational — Packaging and metal fabrication capacity expected online.
- 2027Backlog delivery year — Roughly $1.35 billion of data center backlog scheduled; watch for 2028 orders.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $4.3B | $4.2B | $4.4B | -2.0% |
| Gross Margin | 38.5% | 38.3% | 39.5% | 15bps |
| EBITDA | $708M | $484M | $5.5B | -31.7% |
| EBITDA Margin | 16.5% | 11.5% | 13.0% | 499bps |
| Net Income | $325M | $160M | $258M | -51.0% |
| Free Cash Flow | $688M | $268M | $3.0B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)39.5%
- EBITDA Margin (TTM)13.0%
- Net Margin (TTM)5.8%
- ROIC8.1%
- FCF Conversion65.6%
- SBC / Revenue1.1%
The Company
Generac designs and manufactures energy technology solutions across two segments. Residential includes home standby and portable generators, energy storage, ecobee smart thermostats, and microinverters. Commercial & Industrial includes large-megawatt diesel generators for data centers, mobile products, telecom backup power, and battery energy storage. In the AI infrastructure buildout, the large-megawatt backup generator is the most directly relevant product—data centers require emergency power at roughly 100% to 130% of facility consumption, and Generac is moving to supply complete packaged systems rather than bare generators.
Operations are anchored in Wisconsin, with owned facilities across the state plus international plants in the United Kingdom, Germany, Mexico, Italy, and China. Management also referenced capability in India and production being stood up in Brazil on the latest call, which the 10-K plant list does not include. The company is vertically integrating through the Enercon enclosure and switchgear acquisition and the Belvidere packaging facility.
Business Segments
Competitive Landscape
Generac's C&I competitors include Caterpillar, Cummins, Rehlko (formerly Kohler Power), MTU (Rolls Royce), and others; residential competitors include Rehlko, Briggs & Stratton, Honda, Tesla, Enphase, and more. The filed 10-K describes Generac as holding a leading North American position in power equipment. In the data center generator market, management points to a 40–45 week lead-time advantage versus competitor lead times of 70–80 weeks and sometimes two years, and says the product has been validated by hyperscale customers.
- CaterpillarNamed in the 10-K as a C&I competitor; neighbor read-through shows record $63 billion backlog, up 79% YoY, and large reciprocating engine backlog more than 3.5x since January 2024.
- CumminsNamed in the 10-K as a C&I competitor; Power Systems revenue +19% with record 29.5% EBITDA margin, taking orders into 2028.
- Rehlko (formerly Kohler Power)Named in both the C&I and Residential competitor lists in the 10-K.
- MTU (Rolls Royce)Named in the 10-K C&I competitor list.
- TeslaNamed in the 10-K Residential competitor list; not discussed beyond the listing.
Supply Chain
Generac sits as a packager and integrator of large-megawatt backup power systems. It buys large diesel engines from an unnamed supplier with U.S. exclusivity, and is moving to internalize packaging, enclosures, and switchgear.
More on GNRC: Earnings recap