Which YC batch was Prometheus in?

Prometheus was in Y Combinator's Winter 2019 batch (W19).

Is Prometheus still active?

Y Combinator lists Prometheus as active.

Where is Prometheus based?

Prometheus lists Santa Cruz, CA, USA as its location on YC's directory.

Prometheus: YC W19 company, active

Founders

Not read from YC yet; the weekly run fills these in.

Same space

Competitors

Closest in what they build, same category.

AirthiumS17Decarbonized heat and power cheaper than fossil fuelsShared: energy storage, climateActive
MinimumS20Helping corporates achieve Net Zero through tech solutions.Shared: climateActive

Adjacent

Overlapping tags, a different niche.

inBalanceW21Electricity price forecasts for energy storage, ev charging, etc.Shared: energy storage, climateAcquired
Moxion Power Co.W21Mobile Energy Storage TechnologyShared: energy storage, climateInactive
Phoenix HydrogenW22First commodity marketplace for hydrogen.Shared: energy storage, climateInactive
SparkW24AI-powered workflows for energy infrastructureShared: energy storage, climateActive
AdvanoS17Advano is a battery technology company that improve the longevity of…Shared: energy storage, climateActive

Also from W19

Batchmates in Winter 2019.

About Prometheus

We remove CO2 and water from the air and use electricity from solar and wind power to turn them into zero net carbon electrofuels. These are gasoline, diesel, and jet fuels that work in existing cars, trucks and planes without requiring modification of their engines, and don't contribute to global warming because they don't add any new CO2 to the atmosphere. Each gallon of our electrofuels means a gallon of fossil oil left in the ground forever. Importantly, these fuels for the first time can compete with fossil fuels on price - our zero net carbon jet fuel has a price of one cent per gallon less than fossil jet fuel. American Airlines ordered 10 million gallons of this fuel and we will start shipping it next year.

Santa Cruz, CA, USA