@VanMarkets it is? There are espresso machines that run entirely on propane, no electrical at all. Hrmm.
General Espresso Equipment offers two lines of lever-operated espresso machines. The Gloria comes in 1-group through 4 group configurations. Normally, the gloria runs on electricity, like any other espresso machine. But it can be outfitted to run on propane, without electricity. And the Rapallo comes in 2-group and 3-group configurations. Note that the Rapallo can also be ordered as a semiautomatic espresso machine (see the Astoria semiauto espresso machine section).