ESS Tech (GWH) Q2 2026 Earnings Call Transcript
ESS Tech reported Q2 2026 revenue of $73,000, down from $2.4M YoY, with a net loss of $15.6M. The company is pivoting to its Bridge sodium-ion platform, with $1B in early-stage opportunities. It has letters of intent for 8.5GWh of cells and 500MWh of systems. Management noted substantial doubt about its ability to continue as a going concern and is pursuing a business combination.
How this was made

The 30-second read
Why it matters
The call combines a weak quarter (revenue decline, large net loss) with liquidity stress (going-concern doubt, reduced cash/short-term investments) and a potential catalyst (non-binding business combination plus LOIs for cells and deployments).
Market read
Traders will likely focus on whether the proposed combination can become definitive and fund commercialization, given the explicit going-concern disclosure and continued cash burn.
What to watch
Non-binding LOIs may not convert; fixed manufacturing overhead and underutilized capacity drove cost of revenue, so gross margin trajectory remains uncertain even if Bridge testing succeeds.
Background
ESS Tech is transitioning from legacy contracts toward its Bridge sodium-ion platform and restructuring Wilsonville operations to reduce cash burn.
Ticker impact
ESS Tech reported Q2 2026 results with revenue down to $73,000, $15.6M net loss, and liquidity concerns tied to going-concern language.
Choppy to downside-biased until definitive deal terms and financing clarity reduce going-concern overhang.
The call discloses sharp revenue contraction, cash/investment drawdown, and explicit going-concern doubt, partially offset by debt repayment and LOIs for sodium-ion supply and deployments.
Market effects
Highlights ongoing commercialization risk for sodium-ion and long-duration storage developers, with LOIs not yet binding.
Wilsonville operations rationalization and cash burn focus may affect local manufacturing footprint expectations.
AI data center power demand is cited as a demand driver, reinforcing the global narrative for grid and data-center storage.
Counterpoint
The LOIs and module-level cycling progress could be early indicators of real demand, and the company’s debt repayment reduces immediate balance-sheet pressure.
Key entities
- companyESS Tech, Inc.
Reported Q2 2026 financial results, liquidity position, and LOIs for sodium-ion cell supply and energy storage deployments, alongside a proposed business combination.
- debt instrumentYorkville Note
Promissory note with $40M principal outstanding; $37M repaid to date as of the call.
- counterpartyAlsym Energy
Letter of intent for 8.5 GWh of U.S.-made sodium-ion cells and modules intended to extend the platform into short- and medium-duration applications.
- counterpartyJuniper Energy
Letter of intent for 500 MWh or more of sodium-ion battery energy storage systems with deployment targeted by 2032.


