Clean Energy Fuels Keeps $70M-$75M EBITDA Guide-45Z Is the Optional $5M Bonus

Clean Energy's core guide still anchors the thesis

Clean Energy kept its core earnings target without leaning on the new 45Z credit. Management is still guiding to $70 million-$75 million of adjusted EBITDA even though the market is focused on a projected GAAP net loss of up to $71 million. That makes the EBITDA guide the cleaner read-through for the underlying business than the headline loss.

First-quarter results add some support to that view. Revenue rose to $117.56 million, up 13.3% year over year and ahead of forecasts by nearly $15 million. Renewable Natural Gas volume also surged 33%. That points to stronger activity in a higher-value part of the business, not just momentum in commodity fuel sales.

How the bull and bear cases still split

• Bull case: The core business is still growing and remains on track for $70 million-$75 million of adjusted EBITDA despite the noisy GAAP picture.
• Bear case: A projected GAAP net loss of up to $71 million can keep pressure on sentiment and make near-term EPS difficult to defend.

For now, the better-supported near-term argument is that the operating base held up. That leaves 45Z as a possible upside add-on rather than the reason the setup matters.

What 45Z actually changes for Clean Energy

45Z is best read as a per-gallon tax credit that pays more for cleaner fuel and less for dirtier fuel, not as a blanket bailout. The statute covers fuel produced after Dec. 31, 2024 and sold by Dec. 31, 2029, with the credit amount tied to how much the eligible fuel reduces emissions. In practical terms, cleaner fuel can earn more, but volume alone does not guarantee the same payout per gallon.

The main eligibility gates

Under the proposed rules, eligible fuel must be suitable for use in highway vehicles or aircraft and must maintain emissions of no more than 50 kg CO₂e/mmBTU. Producers also must be registered with the IRS at the time of production, and credit size depends on emissions rates and related certification requirements.

That structure makes 45Z eligibility-driven rather than a flat subsidy across the business. The same emissions-based framework also shapes how feedstock choice and measurement can affect credit value across the broader biofuel complex. So investors should think of 45Z as a bonus attached to qualifying fuel, not a free multiplier on total revenue.

Proposed rules are already practical enough to model

The rulemaking is close enough to matter now. Proposed 45Z regulations were published earlier this year, a public hearing is set for May 28, 2026, and written comments are due within 60 days. Importantly, taxpayers may generally rely on the proposed regulations before final rules are issued. That means producers do not have to wait for the entire process to finish before building the framework into cash-flow models.

Why 45Z still looks more like upside than the core story

Clean Energy already guided to a adjusted EBITDA range of $70 million to $75 million. That means the investment case does not depend on 45Z rescuing the story. For this year, the credit still looks more like an upside kicker of roughly $5 million than the main engine of value. If final rules are favorable and the cleaner-fuel mix keeps expanding, that bonus could add to the part of the business investors already understand. If the rules turn out to be tougher, the core operation is still the foundation.