With the increased utilization of local, often renewable, power sources, coupled with a drive for decentralization, the fraction of electric power generation which is “distributed” is growing and set to grow even faster. It is often believed that moving toward more distributed generation should have a generally positive impact on the robustness of the transmission grid. This intuitive improvement comes simply from the realization that less power would need to be moved long distances, and the local mismatch between power supply and demand would be reduced. However, much of the distributed generation is less reliable which can impact the grid dynamics. We approached the issues of system dynamics and robustness with this intuitive understanding in mind and with the underlying question to be answered, is there an optimal balance of distributed verse central generation for network robustness.