Co-ordinated Operation of Independent Water and Power System with Limited Information Sharing

Typically, water and power systems are two independent infrastructures. However, their operations are interrelated due to the energy consumption units in the water system, while water tanks and variable speed pumps can be managed to provide flexibility to the power system. We analyze the independent but coordinated equilibria operation of the two systems by simultaneously solving the Karush-Kuhn-Tucker conditions of both systems' models. We characterize the equilibria under different temporal and spatial granularity information exchange levels between the two system operators. An example is analyzed to examine the flexibility of the water system provided and the storage strategy in the two systems under different levels of information interchange on prices.