ERII Q3 Deep Dive: Sales Decline and CO2 Project Delays Shape Outlook

Energy recovery device manufacturer Energy Recovery (NASDAQ:ERII) beat Wall Street’s revenue expectations in Q3 CY2025, but sales fell by 17.1% year on year to $32 million. Its non-GAAP profit of $0.12 per share was 24.1% above analysts’ consensus estimates.

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StockStory’s Take

Energy Recovery’s third quarter results were met with a significant negative market reaction as investors digested both a year-over-year decline in revenue and a sharp drop in operating margin. Management attributed the downturn largely to lower mega-project shipments compared to last year and ongoing challenges in the commercialization of its CO2 refrigeration technology. CEO David Moon noted, “Mega-project shipments improved during the quarter and wastewater revenue continued to rebound,” but acknowledged that the company remains in the early stages of CO2 business development.

Looking ahead, Energy Recovery’s future performance hinges on the pace of wastewater segment growth and the timing of CO2 technology adoption. Management expects another year of field testing before signing any major commercial agreements with original equipment manufacturers (OEMs), with Moon stating, “We’re probably a year away from being able to sign a commercial agreement with a large OEM.” Additionally, CFO Mike Mancini was cautious about translating favorable long-term desalination trends into near-term results, emphasizing the slow infrastructure ramp and the time required for backlog to materialize.

Key Insights from Management’s Remarks

Management connected quarterly performance to mixed shipment trends, disciplined cost control, and cautious optimism in new technology commercialization, while acknowledging the slower-than-anticipated progress in CO2.

• Mega-project shipment recovery: Improved execution in mega-project deliveries contributed positively, but shipments were still lower than the previous year, affecting the overall sales decline.
• Wastewater segment momentum: The wastewater business showed signs of recovery, supported by targeted investments in sales personnel with industry experience and relationships, which management believes will be critical for future growth.
• CO2 commercialization delays: The CO2 refrigeration business saw strong OEM engagement and positive energy and water savings validation, but major commercial agreements are now expected in 2026 at the earliest, following another season of end-user testing.
• Cost efficiency measures: Management highlighted substantial reductions in operating expenses after responding quickly to tariff impacts earlier in the year, allowing continued investment in wastewater and manufacturing diversification.
• Lithium extraction niche: The company won a lithium extraction project in Argentina, confirming the potential for this application in wastewater treatment, with expectations of more such projects based on prior wins in China.

Drivers of Future Performance

Energy Recovery’s outlook is shaped by the pace of wastewater expansion, the lengthy CO2 sales cycle, and cautious expectations for large desalination projects.

• CO2 project timing risk: Management expects OEM partners will require another full summer of field testing before any major commercial agreements are signed, pushing meaningful revenue from this segment into 2027. CEO David Moon noted, “Real commercialization is likely going to happen in 2027.”
• Wastewater sales expansion: The company is investing in experienced sales and technical support staff to accelerate adoption in targeted verticals, with management viewing backlog build and execution in the second half of the year as essential signposts.
• Desalination macro trends: While long-term demand for desalination is supported by rising water scarcity and AI-driven infrastructure needs, CFO Mike Mancini cautioned that translating these trends into near-term sales is unpredictable due to slow project cycles and dependence on large, lumpy orders.

Catalysts in Upcoming Quarters

In the coming quarters, StockStory analysts will monitor (1) the pace of backlog build and shipment execution in the wastewater segment, (2) progress on CO2 technology testing with OEMs and large retailers, and (3) signs of cost discipline despite ongoing investments in new markets. We will also track new lithium extraction contracts and any meaningful updates on desalination project awards.

Energy Recovery currently trades at $15.67, down from $17.24 just before the earnings. Is there an opportunity in the stock?Find out in our full research report (it’s free for active Edge members).

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