Koch Industries subsidiary invests US$100m in zinc battery energy storage company Eos

LinkedIn
Twitter
Reddit
Facebook
Email
Inside zinc hybrid cathode battery cell stack, shown on display by Eos at the Solar Power International show in California in 2018. Image: Andy Colthorpe / Solar Media.

NASDAQ-listed zinc-based electrochemical battery storage provider Eos Energy Enterprises has said that a subsidiary of Koch Industries has committed to investing US$100 million into the company.

Koch Strategic Platforms, one of six subsidiaries of Koch Investments Group, which in turn is owned by Koch Industries, will purchase convertible senior notes worth that amount at an initial conversion price of about US$20 per share of Eos’ Common Stock.

The convertible notes mature in June 2026, unless they are repurchased, redeemed or converted before that time, with interest to be paid semi-annually. Eos is to pay cash interest rates of 5% per year, or payments with 6% interest rates per year if made in additional note issues.

Koch Industries was for a long time primarily associated with the oil industry. Brothers Charles and the late David Koch who founded the company were accused by environmental groups including Greenpeace of funding millions of dollars worth of campaigns to “make Americans doubt the seriousness of global warming,” often through secretive and opaque non-profit organisations.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Koch Industries has diversified to be involved in numerous sectors, from packaging and industrial glass to cattle, through the various companies it owns, while Koch Investments Group claims to have deployed more than US$60 billion globally across public and private capital markets over the past decade through its subsidiaries. Koch Strategic Platforms is its subsidiary launched in 2020, for investing in innovative companies in “new economy” industries that are focused on growth and are of strategic importance.

Meanwhile, Eos Energy Enterprises, known as Eos Energy Storage prior to its merger with special purpose acquisition company (SPAC) B Riley Financial Corp, which led to its public listing earlier this year, manufactures Znyth, an aqueous zinc battery storage technology which the company claims is suitable for long-duration applications requiring 3-12 hours of energy. Eos has manufacturing facilities in Pittsburgh and recently bought out its manufacturing joint venture (JV) that was set up with nuclear equipment and services group Holtec.

In Eos’ most recent quarterly financial results, published in May, the company noted that it had booked US$33 million of orders — 141MWh of systems — in the year to date, part of a total order backlog of about US$50.5 million. Energy-Storage.news reported at the time that while the company’s order book and project pipeline had grown significantly, the company also incurred significant costs associated with its efforts to scale up both manufacturing and deployments, signifying both the potential for the technology as well as the commercialisation challenges ahead.

Read Next

October 23, 2026
Tech giant Google and distributed energy resource (DER) platform Voltus have announced an expanded agreement to build a 1GW virtual power plant (VPP) in the US.
October 23, 2026
German home energy storage and virtual power plant (VPP) company sonnen GmbH, sold by gas major Shell in August, has filed for insolvency.
October 22, 2026
In recent North American sodium-ion news, Hithium is entering the Canadian market with two BESS solutions, while Peak Energy has closed a Series B financing round led by GM.
October 22, 2026
As demand for battery storage soars, the European Union (EU) has tried to grow its local battery supply chain with mixed success so far, writes PV ESS analyst Charlotte Gisbourne.
October 22, 2026
Science safety leader UL Solutions has announced a new certification pathway intended to help manufacturers of modular direct current (DC) battery energy storage systems (BESS).