Method netSourceEnergy

src/model/Facility.cpp:176–182

    }

    OptionalDouble Facility_Impl::netSourceEnergy() const {
      OptionalSqlFile mySqlFile = model().sqlFile();
      if (mySqlFile && mySqlFile->connectionOpen()) {
        return mySqlFile->netSourceEnergy();
      }
      return {};
    }

    // pass in "Electric", "NaturalGas", or "Other"
    OptionalDouble Facility_Impl::annualTotalCost(const FuelType& fuel) const {