"APR doesn’t run a traditional power plant. It deploys trailer-mounted gas turbines and reciprocating diesel and natural gas engines that can reach full power in under 10 minutes and be installed in days rather than the years it takes to permit and build a fixed plant. The fuel is natural gas and diesel. This is fossil-fuel combustion, packaged to move."
https://electrek.co/2026/07/14/musk-buys-gas-turbine-company-apr-energy-grok/