It used to be true that the pumping stations themselves were powered by gas, but this is no longer guaranteed because some have been replaced by cheaper electri

It used to be true that the pumping stations themselves were powered by gas, but this is no longer guaranteed because some have been replaced by cheaper electrical pumps. https://www.sciencedirect.com/science/article/pii/S1040619023000180 https://www.sciencedirect.com/science/article/pii/S104061902...