State estimation for cooperative electrical grids

Aspects of state estimation for cooperative electrical grids are disclosed. State estimation of a local electrical grid can be based on a local grid model and local electrical grid information. The local state estimation can reflect interactions and interconnections with other electrical grids by determining state estimation solution information based on the local grid model, local electrical grid information, and remote state estimator solution information associated with the other electrical grid. As such, a local state estimator can be configured to receive and employ remote state estimator solution information. This can be in addition to the more conventional technique or receiving a remote grid model and remote electrical grid information to estimate the conditions of the remote electrical grid. Further, state estimation solution information can be incremental to further reduce the amount of information to be transferred and the time needed to accomplish transmission of the information.