Design the Grid Simulation Environment

Outline the architecture for a Python-based simulation environment that models a simplified power grid. This environment should accept initial grid topology, dynamic load profiles (including a rapidly growing 'data center' load), and intermittent renewable generation forecasts. It should be capable of simulating power flow and identifying grid stability issues or unserved energy events given specific BESS placements and dispatch schedules. Consider using `networkx` for graph representation and `pypower` (or a simplified custom solver) for power flow.