ESS Tech, Inc. (NYSE:GWH) shares soared 15.01% to $1 in after-hours trading on Tuesday.
In the regular session, the stock of the clean energy company that specializes in non-lithium battery technology climbed 7.88% to $0.87.
Bridge Launch Sparks Rally
The stock move follows the company’s announcement last week of ESS Bridge, a modular sodium-ion battery energy storage system (BESS) designed to serve utilities, AI-driven data centers and industrial customers.
According to the ESS Tech, the Bridge system provides 1.2 MWh of storage capacity per unit and can be expanded up to 4.8 MWh. It is designed to operate for 20 years and is engineered to prevent fire risks associated with thermal runaway, unlike conventional lithium-ion systems.
The Oregon-based company said it has generated more than $1 billion in early-stage customer opportunities since entering the sodium-ion market.
CEO Drew Buckley said, “AI workloads are reshaping what data centers need from energy storage, and sodium-ion handles those power needs more effectively than conventional technologies.”
Trading Metrics, Technical Analysis
ESS Tech has a market capitalization of $25.43 million, a 52-week high of $13.87 and a 52-week low of $0.57.
The stock has a Relative Strength Index (RSI) of 50.40.
Over the past 12 months, GWH has dropped 32.07%.
The small-cap stock is currently trading close to its annual low.
GWH’s significant decline and weak market position indicate continued pressure on the stock. This highlights increased risk and suggests that clearer signs of recovery may be needed before investor confidence can return.
Benzinga’s Edge Stock Rankings indicate GWH stock has a negative price trend across all time frames.
Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.
Photo: Ole.CNX / Shutterstock
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