Prometheus should be laser focused on being first to market in commercial quantities. There are people who want carbon neutral fuels today even if they are more expensive than fossil fuels. Capture that entire market with v1 of the process even if it's $10/gallon. Take everything learned to make v2 at $7/gallon and v3 at $5/gallon etc... The goal of $3/gallon is pushing Prometheus down the rabbit hole. Waiting for th…
$3.00 / gallon is our v 1.0 (before taxes)
If you hit that you're sorted in Europe.
https://www.tolls.eu/fuel-prices
European prices seem to average about ~ EU 1.8 / litre or ~7.2 EU / Gallon or $US 7.6 / gallon.
For C02 neutral fuel it would just work at that price.