Last Update 26 Jun 26
Fair value Decreased 27%GWH: Sodium Ion Platform And New Horizon Progress Will Drive Rebound
Analysts have reduced their price target on ESS Tech stock to $2.00 from $2.50, citing a weak Q1 during the company's commercialization transition for its Energy Base platform, while also acknowledging ongoing progress on projects such as New Horizon with SRP and Google as key factors in their updated view.
What’s in the News for ESS Tech
- ESS Tech received a notice from the New York Stock Exchange that its 30 trading day average closing share price was US$0.98 as of June 8, 2026, below the US$1.00 minimum required for continued listing. The company plans to notify the NYSE of its intent to cure the deficiency and is considering options such as a reverse stock split. (Source: NYSE notice via company disclosure)
- ESS Tech announced early customer engagement for its planned U.S. made sodium ion battery energy storage system, with early stage project opportunities approaching US$1b across data centers, critical infrastructure, and utility markets. The company is accelerating development of this platform. (Source: company product announcement)
- The company signed a letter of intent for a partnership with Alsym Energy to add 8.5 GWh of sodium ion cells and modules to its portfolio, expanding ESS Tech’s reach into short and medium duration battery energy storage applications that have typically used lithium ion systems. (Source: client announcement)
- ESS Tech reported successful commissioning of two iron flow battery systems at Turlock Irrigation District in California, pairing long duration storage with solar panels over irrigation canals in a project aimed at supporting both renewable power use and water conservation. (Source: client announcement)
- ESS Tech plans to continue developing its iron flow battery technology for long duration use cases while streamlining its Wilsonville operations to reduce expenses and shift more capital toward sodium ion and related solutions that the company views as having nearer term revenue potential. (Source: company product announcement)
Valuation Changes for ESS Tech
- Fair Value: The analyst fair value estimate has been reduced from $2.75 to $2.00, a material downward reset in the implied value for ESS Tech shares.
- Discount Rate: The discount rate has risen significantly from 9.03% to 12.44%, indicating a higher required return and greater perceived risk in the updated model.
- Revenue Growth: The modeled revenue growth rate has moved sharply higher from 141.02% to 264.34%, implying a much steeper potential scaling path is now embedded in the assumptions.
- Profit Margin: The assumed profit margin has been trimmed slightly from 11.80% to 11.20%, pointing to somewhat more conservative expectations on long term profitability.
- Future P/E: The future P/E multiple has increased from 8.61x to 16.99x, meaning the updated valuation framework places a higher earnings multiple on ESS Tech than before.
Catalysts
About ESS Tech
ESS Tech develops long duration iron flow battery systems that provide safe, sustainable grid scale energy storage.
What are the underlying business or industry changes driving this perspective?
- Acceleration of grid decarbonization and data center power demand is increasing the need for 10 hour plus storage, positioning Energy Base as a preferred solution and supporting higher long term revenue growth from larger project sizes.
- The first commercial scale Energy Base deployment with Salt River Project, combined with a growing pipeline centered entirely on this platform, can convert validation projects into multi hundred megawatt follow on awards, improving revenue visibility and earnings leverage.
- Ongoing shift in RFPs toward long duration specific procurements, where ESS competes against fewer qualified alternatives than in 4 hour lithium dominated tenders, should support pricing power and structurally better gross margins.
- U.S. sourced, non flammable iron flow technology aligns with regulatory and utility preferences for domestic, resilient and sustainable infrastructure. This can unlock additional incentive support and improve project economics, benefiting net margins over time.
- Disciplined cost control, vendor optimization and scaling manufacturing for 2026 deliveries create operating leverage as volumes ramp. This allows fixed costs to grow more slowly than sales and supports a path toward improved operating income and earnings.
Assumptions
How have these above catalysts been quantified?
- Analysts are assuming ESS Tech's revenue will grow by 264.3% annually over the next 3 years.
- Analysts are not forecasting that ESS Tech will become profitable in next 3 years. To represent the Analyst Price Target as a Future PE Valuation we will estimate ESS Tech's profit margin will increase from -5515.8% to the average US Electrical industry of 11.2% in 3 years.
- If ESS Tech's profit margin were to converge on the industry average, you could expect earnings to reach $6.0 million (and earnings per share of $0.17) by about June 2029, up from -$61.3 million today.
- In order for the above numbers to justify the price target of the analysts, the company would need to trade at a PE ratio of 17.0x on those 2029 earnings, up from -0.4x today. This future PE is lower than the current PE for the US Electrical industry at 40.0x.
- Analysts expect the number of shares outstanding to grow by 7.0% per year for the next 3 years.
- To value all of this in today's terms, we will use a discount rate of 12.44%, as per the Simply Wall St company report.
Risks
What could happen that would invalidate this narrative?
- The transition from legacy products to the new Energy Base platform is already creating revenue volatility, as shown by the drop from 2.4 million in the second quarter to 200,000 in the third quarter. If commercialization or field validation is delayed, long term revenue growth could fall short of expectations and push out the path to scale.
- ESS remains deeply loss making with a quarterly net loss of 10.4 million and only 3.5 million of cash and equivalents at quarter end. Reliance on external financing, including the Yorkville facility and a 75 million at the market equity program, could lead to shareholder dilution or funding gaps that weigh on earnings and net margins over time.
- Despite strong secular tailwinds for long duration storage, ESS still faces technology and competitive risk from both lithium ion providers in storage agnostic RFPs and other emerging long duration solutions in dedicated tenders. If its iron flow batteries fail to sustain a cost and performance edge, pricing pressure could compress gross margins and limit future earnings power.
- The company’s long term growth strategy depends on converting pilot projects like the 50 megawatt hour Salt River Project installation into much larger 100 to 200 megawatt follow on awards. If utilities or data center customers are slow to adopt or scale these deployments, the commercial pipeline may not translate into contracted backlog, constraining revenue and operating leverage.
- ESS is managing through a period of leadership transition and aggressive cost discipline while simultaneously scaling manufacturing and supply chain capabilities for 2026 deliveries. Any execution missteps, vendor issues or delays in productization of Energy Base could increase operating expenses faster than sales, worsening operating losses and delaying sustainable positive earnings.
Valuation
How have all the factors above been brought together to estimate a fair value?
- The analysts have a consensus price target of $2.0 for ESS Tech based on their expectations of its future earnings growth, profit margins and other risk factors.
- In order for you to agree with the analysts, you'd need to believe that by 2029, revenues will be $53.8 million, earnings will come to $6.0 million, and it would be trading on a PE ratio of 17.0x, assuming you use a discount rate of 12.4%.
- Given the current share price of $0.76, the analyst price target of $2.0 is 61.8% higher.
- We always encourage you to reach your own conclusions though. So sense check these analyst numbers against your own assumptions and expectations based on your understanding of the business and what you believe is probable.
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Disclaimer
AnalystConsensusTarget is a tool utilizing a Large Language Model (LLM) that ingests data on consensus price targets, forecasted revenue and earnings figures, as well as the transcripts of earnings calls to produce qualitative analysis. The narratives produced by AnalystConsensusTarget are general in nature and are based solely on analyst data and publicly-available material published by the respective companies. These scenarios are not indicative of the company's future performance and are exploratory in nature. Simply Wall St has no position in the company(s) mentioned. Simply Wall St may provide the securities issuer or related entities with website advertising services for a fee, on an arm's length basis. These relationships have no impact on the way we conduct our business, the content we host, or how our content is served to users. The price targets and estimates used are consensus data, and do not constitute a recommendation to buy or sell any stock, and they do not take account of your objectives, or your financial situation. Note that AnalystConsensusTarget's analysis may not factor in the latest price-sensitive company announcements or qualitative material.