Airthium has vision of a world powered 100% from renewables, where electricity would be easily accessible and cheaper - cheaper than all fossil fuels including nuclear.
Airthium is building a low-cost seasonal battery that can store renewable energy for years, instead of hours, and is up to 100 times cheaper than current solutions, including lithium-ion batteries.
A "low-cost seasonal battery" means storing solar energy in the summer and delivering it in the winter, while not increasing the yearly average cost of solar energy beyond fossil fuel prices. We can even compensate for a few "years with bad weather" using reserves built during better years. This way, fossil-fired power plants, which are used for backup power today when there is no sun or no wind for long durations, can finally be shut down.
10,000 hours of Autonomy
Their system uses ammonia as zero-carbon synthetic fuel. Large scale liquid ammonia tanks cost $0.2/kWh electrical to build, allowing their battery to deliver its rated power for up to 1 full year straight - and still remain economical.
Their storage system is mostly made of liquid ammonia, molten nitrate salt, water, and steel. They draw on the decades of experience and existing equipment from the fertilizer and CSP industry, with a fully and easily recyclable design.
100x cheaper than Li-ion
Typical systems with 1000 hours of autonomy cost down to $2/kWh to build, representing minor additional cost to solar and wind farms. This makes 100% solar and wind electricity practical, and cheaper than fossil fuels in more locations every year.
CEO and Co-Founder
PhD in plasma physics from Ecole Polytechnique (French top 2 uni), researched the science behind Airthium for 5 years. Went through Y Combinator with Franck in 2017.
100 kW Minimum Size
The heat engine at the core of their system is a new kind of Stirling engine, with a 100 kW minimum size that fits off-grid scenarios. It can be scaled to GW size with multiple engines on a few shafts, and still benefit from mass manufacturing.
COO and Co-Founder
Ex-EMEA Sales director at Intelsat, one of the world's largest telecommunications satellite operator. Later, he ran his own satellite capacity brokerage company for several years.
Airthium was founded in March 2016 by Andrei Klochko. The Company won numerous prizes including Prix Gérondeau by Zodiac Aerospace 2014, Prix des innovateurs by ArcelorMittal 2016 and the Concours Mondial de l'innovation 2016 organized by the French Government. They went through the Y Combinator startup accelerator in the summer of 2017.