Combining different energy sources without wasting their flexibility.

Power grids need to group small, local power sources together so operators can call on their backup energy when needed. But current tools are too cautious and waste useful energy. This happens because these devices operate across different time scales and follow very different, irregular patterns. The researchers solved this with a new aggregation method. First, they used a math technique to lift devices with mismatched time scales into a shared, higher-dimensional space, then projected them back into one combined pool. Second, they built a coordinated framework that adds the grid operator's specific dispatch preferences directly into the grouping process. This focuses on the exact flexibility the grid needs most. Tests show this method handles both differences well, cutting flexibility lossflexibility lossThe reduction in usable energy flexibility when combining diverse sources. for grids needing high reserves.

Why it matters

This affects power grids that use renewable energy sources like solar panels and batteries. Better aggregation reduces waste and costs, making grids more reliable as we rely more on these sources.

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