Expansion co-planning for shale gas integration in a combined energy market

Abstract

Shale gas resources have the potential to significantly contribute to worldwide energy portfolio. A great number shale gas reserves have been identified in many countries. Connections of newly found gas reserves to the existing energy infrastructures are challenging, as many stakeholders and market uncertainties are involved. The proposed co-planning approach is formulated as a mixed integer nonlinear programming problem so as to minimize investments and enhance the reliability of the overall system. We propose a reliability assessment approach that is applicable for the coupled gas and electricity networks. In addition, the IEEE 24-bus RTS and a test gas system are applied to validate the performance of our approach. Based on the simulation results, the novel expansion co-planning approach is a robust and flexible decision tool, which provides network planners with comprehensive information regarding trade-offs between cost and system reliability.

Coordinated expansion co-planning of integrated gas and power systems

“…Equation (18) denotes that the outputs of GPGs are constrained by the availability of gas in gas networks. Equation (19) states DR is bounded by the maximum DR ratio f.…”

“…Equation (18) and Equation (24) indicate the constraint of gas-fired power generations outputs and the constraint of energy conversion ratio between gas demand and electricity demand, respectively. By considering the constraints in generation side (i.e.…”

“…Nevertheless, the authors merely considered the system value chain and the optimal dispatch of existing and new facilities, but did not define clear criteria for system performances. The integrated planning under market conditions are conducted in [17,18]. In [17], the authors considered the expansion co-planning with uncertainties (e.g.…”

“…uncertainties of energy load, load percentages, and market price) in a coupled energy market. In [18], the authors studied the expansion co-planning in terms of shale gas and power systems in a combined energy market, aiming to minimize the investment costs and improve the overall system reliability.…”

Coordinated optimal dispatch and market equilibrium of integrated electric power and natural gas networks with P2G embedded

“…In recent years, with an increasing share of combined cycle gas turbines (CCGTs) in total electricity generation, natural gas is playing a significant role in low-carbon power generation [1][2][3]. In a traditional energy system, the interaction between a natural gas network and an electricity network can be implemented only via gas turbines.…”