Energy Recovery Keeps Advancing On Its 3 Fronts, Waiting For Key Q3 And 1H26 On CO2

Energy Recovery, Inc. (ERII) reported positive Q2 '25 developments across its segments, with significant contract wins in its core desalination business, a return to China exports for wastewater, and progress in CO2 refrigeration testing and OEM partnerships. The company confirmed it expects to meet full-year guidance, primarily driven by desalination, which funds its growth initiatives. The analyst maintains a Buy rating, viewing the valuation as moderately attractive due to the established desalination segment's performance and the long-term optionality of the nascent wastewater and CO2 markets.

Analysis

Energy Recovery, Inc. (ERII) demonstrated positive operational momentum in its Q2 2025 results, reinforcing the investment thesis of a stable core business funding high-growth, speculative ventures. The primary desalination segment, which constitutes over 90% of revenue, is on track to meet full-year guidance, supported by the signing of $62 million in new contracts, including $40 million in megaprojects across EMEA and India. This progress is further secured by ongoing innovation, with a fifth-generation pressure exchanger in development that promises 25% greater capacity. In its growth segments, the company has resumed exports to China for its wastewater business, leading to reinstated guidance, and has secured OEM integration agreements to streamline sales. The most nascent venture, CO2 refrigeration, has achieved its target of 50 installations for critical summer testing, with key catalysts on the horizon, including an expected commercial OEM agreement in Q3 2025 and supplier approval from four major supermarket chains by H1 2026. From a valuation perspective, the $805 million market capitalization is not compelling on reported earnings alone; however, when adjusting for the roughly $25-30 million annual investment in new ventures, the core water business generates an estimated underlying earnings yield of around 6.5%, which, combined with growth, suggests a total yield near 10-11%. The current stock price thus reflects the value of the profitable desalination business plus the embedded call option on the success of the wastewater and CO2 segments.

Key Decisions for Investors

• Investors should recognize the dual nature of the investment: a stable, profitable desalination business combined with high-risk, high-reward call options on the wastewater and CO2 markets, with the current valuation primarily supported by the former.
• Monitor key execution milestones for the CO2 segment, specifically the expected commercial agreement with an OEM in Q3 '25 and progress toward being specified in 4,000 supermarket locations by H1 '26, as these are critical validation points for the long-term growth thesis.
• Given the speculative, long-term payoff profile of the CO2 and wastewater initiatives, investors should consider maintaining a moderately sized position, as the execution risk in these new markets warrants caution despite the core business's stability.