Ameresco, Inc. (AMRC) | The Buildout — AI Infrastructure

The Verdict

Ameresco designs, engineers, builds, owns, and operates energy infrastructure: energy-efficiency retrofits, distributed generation, battery storage, microgrids, and renewable fuels. Its link to the AI buildout is behind-the-meter power. Data-center developers, hyperscalers, and neoclouds increasingly need on-site generation because grid access is constrained or delayed, and Ameresco sells that as EPC projects — reciprocating engines, gas turbines, fuel cells, battery storage, and integrated microgrids — with an operations-and-maintenance stream attached after construction. Federal and military-base land through enhanced-use leases is a different siting route; management says military land has fewer land permitting requirements than commercial properties.

Earnings Beat

Q2 2026 revenue was $515M, up 9% year over year. Gross margin improved to 17.7% from 14.1% in Q1, which management attributed to favorable business mix and strong execution. Adjusted EBITDA rose 12% to $62.8M, outpacing revenue growth, and net income attributable to common shareholders was $9.7M after a $18.3M loss in Q1. The headline was the order book: a record $1.8B of new awards, including $1.2B for data centers, lifted awarded project backlog 65% to $4.4B and total project backlog 32% to $6.7B.

Management tone: The Q2 2026 call carried the most assertive tone in the record. Management called the quarter 'transformational' and used 'record' repeatedly. On the questions that mattered most they were direct and volunteered answers that cut against their own headline: the 2028–2030 revenue timing, the fact that no equipment orders have been placed, the working-capital cash absorption, and that the EPS guidance raise is tax- and accounting-driven rather than operational. They declined to discuss project-level risk allocation and liquidated damages.

Management Guidance

FY2026 guidance was reaffirmed across all metrics: revenue $2.0–2.2B and gross margin 17%–18%. Adjusted EBITDA is stated net of the 30% noncontrolling interest attributable to HASI in the biofuels business. Non-GAAP EPS was raised to $1.15–$1.35, driven by an expected tax benefit rate of 25%–40% and a planned transferable-tax-credit accounting policy change in the second half of 2026, with prior-period results to be recast. Management expects the second half to follow a normal seasonal cadence with activity weighted somewhat more toward Q4, and says the data-center contribution to 2026 is already baked in and not expected to be significant. The Q2 print beat the prior guide at the EBITDA line — $62.8M against $58–62M — and landed inside it on non-GAAP EPS.

Trajectory

Headline growth decelerated from 14% year over year in Q1 2026 to 9% in Q2, but the mix improved. Q2 revenue was $515M with gross margin of 17.7%, up from 14.1% in Q1, which management attributed to favorable business mix and strong execution; Q1's margin had been hurt by freeze-ups at three RNG plants and snow at solar sites. Inside Q2, energy-asset revenue grew 21% and O&M revenue grew 29%, while project revenue grew 6%. Management also noted Q1 had benefited from $20M–$30M of revenue pulled forward from the second quarter.

The Model

The model projects FY+1 revenue of $2,150M and EBITDA of $280M, a 13.0% margin, then FY+2 revenue of $2,400M and EBITDA of $324M, a 13.5% margin. The near-term anchor is the reaffirmed FY2026 guidance range and the backlog already contracted, which converts over the following periods. The step up in FY+2 depends on awarded backlog converting — especially the awarded data-center projects — alongside the recurring O&M and owned energy-asset layers.

Projections are the median of 5 independent model runs. The model’s revenue sits 4.5% above analyst consensus.

FY2026 guidance was reaffirmed across all metrics: revenue $2.0–2.2B and gross margin 17%–18%. Adjusted EBITDA is stated net of the 30% noncontrolling interest attributable to HASI in the biofuels business. Non-GAAP EPS was raised to $1.15–$1.35, driven by an expected tax benefit rate of 25%–40% and a planned transferable-tax-credit accounting policy change in the second half of 2026, with prior-period results to be recast. Management expects the second half to follow a normal seasonal cadence with activity weighted somewhat more toward Q4, and says the data-center contribution to 2026 is already baked in and not expected to be significant. The Q2 print beat the prior guide at the EBITDA line — $62.8M against $58–62M — and landed inside it on non-GAAP EPS.

What Could Go Right — and Wrong

Looking Ahead

The next twelve months are about conversion rather than awards. Management has said the awarded data-center backlog takes 6–24 months to become contracted and up to three years to implement, with the major revenue impact in 2028–2030. Nearer in, the tests are whether cash conversion reverses the Q2 working-capital drag, whether the transferable-tax-credit accounting change lands with the promised prior-period recast, and whether a permanent CFO is named after Mark Chiplock's departure effective 2026-09-25.

Financials

Annual Summary

Key Ratios (Trailing)

The Company

Ameresco designs, engineers, builds, owns, and operates energy infrastructure. Its portfolio runs from energy-efficiency work — building envelope, HVAC and indoor air quality, LED lighting, building controls, water efficiency — to generation and storage: solar, battery energy storage, cogeneration and combined heat and power, geothermal, hydropower, wind, and renewable natural gas. As of 2025-12-31 it owned and operated 227 small-scale renewable energy plants with combined capacity of roughly 838 megawatt equivalents, 224 of them across North America and three in Ireland and the United Kingdom. Customers have historically been government and institutional: about 61.0% of FY2025 revenue came from federal, state, provincial, or local government entities, and the largest 20 customers were about 57.2% of revenue.

The company operates as a developer and EPC contractor that also owns and operates assets, rather than a manufacturer or software company — it buys rather than manufactures. In Q2 2026 management reorganized the external story into two pillars, Power Infrastructure and Building & Public Infrastructure, and rebranded, while the 10-K's five reportable segments were unchanged: North America Regions, U.S. Federal, Renewable Fuels, Europe, and All Other. Behind that sits a recurring service layer — third-party operations and maintenance for more than 2.5 GW of solar and battery storage, with long-term O&M backlog exceeding $1.5B.

Business Segments

Competitive Landscape

Ameresco competes in several distinct fields, and the FY2025 10-K names competitors in each. In smart energy solutions the list runs from Honeywell, Johnson Controls, Schneider Electric, Siemens Building Technologies, and Trane to NORESCO (a Carrier unit), ABM Industries, Comfort Systems, EMCOR, Veolia, McKinstry, and others. In landfill gas and renewable natural gas it names Montauk Renewables, Vanguard Renewables, and Opal Fuels alongside landfill owners and divisions of large oil-and-gas companies. In solar PV and battery storage it names NextEra Energy, Engie SA, Invenergy, EDF Renewables, and Clearway Energy Group. The record shows Ameresco winning awards; it does not show whether it wins on capability, siting, or relationships.

Supply Chain

Ameresco sits between equipment vendors and the customers who need on-site power, and it buys rather than manufactures. Two supply-chain neighbors name it directly: HASI, its $400M Neogenyx Fuels partner, and Terra Innovatum, which says Ameresco gives it federal and commercial deployment channels.