Noon Energy
Updated: January 29, 2026
Founder Christopher Graves
Country: USA | Funding: $31.2M (+)
Founded: 2018
Website: https://www.noon.energy/
Noon Energy is creating multi-day energy storage systems based on reversible solid oxide fuel cells. The system consists of power unit, charging tank (which converts electricity into a carbon-based storage medium, releasing oxygen into the air) and discharging tank (which extracts oxygen from the air to convert the stored energy back into electricity). The company has already demonstrated its battery operating for thousands of hours and claims that the system can operate in discharge mode for up to 200 hours at maximum power. The battery's compact design, according to the company, is 20-200 times smaller in area than other LDES technologies, citing flow batteries and pumped hydroelectric power plants as examples. Noon Energy also claims it uses only about 1% of the critical materials compared to lithium-ion batteries.
Founded: 2018
Website: https://www.noon.energy/
Noon Energy is creating multi-day energy storage systems based on reversible solid oxide fuel cells. The system consists of power unit, charging tank (which converts electricity into a carbon-based storage medium, releasing oxygen into the air) and discharging tank (which extracts oxygen from the air to convert the stored energy back into electricity). The company has already demonstrated its battery operating for thousands of hours and claims that the system can operate in discharge mode for up to 200 hours at maximum power. The battery's compact design, according to the company, is 20-200 times smaller in area than other LDES technologies, citing flow batteries and pumped hydroelectric power plants as examples. Noon Energy also claims it uses only about 1% of the critical materials compared to lithium-ion batteries.
