Climate-resilient supply chains increasingly decarbonize at the source — putting solar, wind and battery storage directly on-site at a factory or warehouse instead of relying entirely on the grid. This 2D schematic simulator runs the same real-time priority-dispatch energy balance across a full day: a solar field and a wind turbine generate variable power that first meets the factory's own demand curve, any surplus charges a battery bank, and only when both renewables and storage run dry does the facility import power from the grid. Resize the solar array, wind turbine and battery bank and watch the live power-flow diagram, the stacked generation-mix chart and the running grid-import cost respond, exactly the trade-off procurement and sustainability teams weigh when sizing on-site VRE.