The startup Antora Energy just raised $550 million to build and deploy more of its heat-storing batteries for powering data centers and cleaning up factories.
By Maria Gallucci, CanaryMedia
On Thursday, San Jose, California–based Antora said it closed a Series C funding round co-led by climatetech investor G2 Venture Partners and the VC firm Eclipse, which backs manufacturing-focused startups. That brings Antora’s total corporate and project financing to around $1 billion, the company says, adding that the latest infusion will enable it to expand domestic production of its thermal batteries and accelerate the buildout of large-scale projects.
Eight-year-old Antora has likened its technology to an enormous toaster. Electricity runs through a large resistance heater to warm big blocks of solid carbon to extremely high temperatures for days on end. The blocks release controlled blasts of high-intensity light that can be used to either produce power on demand or generate steam for industrial processes.
Just two months ago, Antora began booting up its first commercial-size system: a 5-gigawatt-hour thermal battery at Poet’s biofuels plant near Big Stone City, South Dakota. The project will turn cheap wind energy into steam the plant needs to convert corn into ethanol, displacing some of the facility’s reliance on coal-fueled boilers.