This policy brief has been prepared as an input into the G20 Energy Transition Working Group’s deliberations on the role of transnational power system connectivity in the energy transition, and how to best support the development of existing or new connectivity efforts. It details the Road Map’s vision, guiding principles, and nine strategies, and then provides a few case studies to illustrate how these strategies are being implemented in practice. The paper ends with some specific recommendations for the G20 Energy Transitions Working Group, focusing in particular on a subset of strategies that may be most relevant for a G20 context.