In the meantime, Engineer Steel could focus on building a combustion engine or a gas turbine to convert the biogas into electricity. This could potentially provide enough power to sustain HOPE Base for an extended period. The energy collected from the lightning strike project had worked well, but storms weren't a constant occurrence, so having a reliable backup—biogas-generated electricity—could be the solution they needed to keep the base running smoothly.
By now, Engineer Steel and his team might have completed rewiring and connecting the other buildings within their base to the machine where the batteries, powered by the lightning strikes, were docked. Given this progress, integrating another source of energy into the system wouldn't be a significant issue.