pub fn calculate_photovoltaic_expansion_savings(
photovoltaic_energy_expansion: Kilowatthours,
estimated_self_photovoltaic_usage: Percent
) -> Tons
pub fn calculate_photovoltaic_expansion_savings(
photovoltaic_energy_expansion: Kilowatthours,
estimated_self_photovoltaic_usage: Percent
) -> Tons