Ameresco stock has delivered a steep 59.5% decline over the past five years, yet current valuation checks send mixed signals, with the Discounted Cash Flow (DCF) intrinsic value pointing to a premium while earnings-based multiples suggest the shares could be on the cheap side.

• Over the past 5 years, Ameresco shares are down 59.5%, which sets a cautious backdrop for any argument that the current price already bakes in a recovery story.
• The prospect of tighter rules on foreign power inverters and new energy infrastructure wins like the Mount Sinai School District project may support revenue and cash flow expectations, but execution risk on large projects and policy shifts remain key uncertainties for how much of that potential is worth paying for today.
• Ameresco scores just 2 out of 6 on broad valuation checks, which leans more toward the stock looking expensive overall than like a clear bargain.

The issue now is whether Ameresco's current share price makes sense in light of a DCF intrinsic value that implies it may be overvalued while market multiples point in the opposite direction.

Has Ameresco Run Too Far on Cash Flow?

The Discounted Cash Flow (DCF) model estimates what Ameresco is worth today based on the cash it is expected to generate in the future. For Ameresco, the model starts from latest twelve month free cash flow of about $531 million in outflows, then assumes a recovery to positive and growing free cash flow over time, which is consistent with analyst projections used in the 2 Stage Free Cash Flow to Equity model.

On these assumptions, the DCF model arrives at an intrinsic value of about $21.27 per share. This implies the stock screens around 18.7% overvalued compared with the current market price. Because the recent move on potential US restrictions on foreign power inverters has lifted sentiment, the DCF outcome suggests the market may now be paying up for that policy upside relative to the cash flows currently pencilled in.

Overall, the Discounted Cash Flow workup indicates Ameresco stock looks overvalued at today’s price.

Our Discounted Cash Flow (DCF) analysis suggests Ameresco may be overvalued by 18.7%. Discover 44 high quality undervalued stocks or create your own screener to find better value opportunities.

Does Ameresco Look Undervalued on Earnings?

The P/E ratio is a useful yardstick for Ameresco because earnings are a key focus for investors in construction and energy services stocks. Ameresco currently trades on a P/E of about 42.6x, which sits slightly above the broader construction industry average of 41.1x but below the peer group average of 52.8x.

On the modelled fair P/E of 48.5x, which reflects the earnings multiple that could be considered in light of Ameresco’s size, margins and risk profile, the current 42.6x implies the stock trades at a discount to what this framework suggests could be reasonable. That gap indicates investors are paying less for each dollar of Ameresco earnings than the tailored benchmark implies, even though the headline P/E is not far from the sector norm.

On the P/E multiple, Ameresco stock currently appears undervalued relative to its modelled fair earnings ratio.

The Ameresco Narrative: What Would Justify Today's Price?

Simply Wall St Narratives pick up where this Ameresco valuation puzzle leaves off by spelling out the specific assumptions on growth, margins and earnings that would need to hold for the stock to be worth materially more or less than today’s price, and they sit on Simply Wall St's Community page. Each narrative ties a fair value estimate to a particular mix of potential catalysts and risks, so you can track over time which version of Ameresco's story is taking shape.

One of the top community narratives on Ameresco: 59% undervalued

"While consensus believes the growing energy asset base simply supports future EBITDA, they underestimate how recurring revenue from new energy assets, particularly high-value battery storage and RNG facilities entering service, will sharply lift net margins and cash flow visibility as more of the portfolio comes on line in 2026 and 2027..."

Do you think there's more to the story for Ameresco? Head over to our Community to see what others are saying!

The Bottom Line

For Ameresco, the Discounted Cash Flow (DCF) intrinsic value points to the stock looking overvalued at the current price, while the P/E comparison hints at some undervaluation relative to its tailored earnings multiple. That split largely reflects how cash flow models focus on funding needs and capital intensity, whereas market multiples lean on growth expectations and sentiment around policy support. With broader valuation checks still weak, the key question is whether Ameresco can turn expected project wins into durable cash generation or whether the apparent earnings discount simply reflects the execution and policy risks that remain.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.