The duck curve

The duck curve

The duck curve


“What happens when demand and generation from renewable energy is out of sync?”


There is one nagging bump on the road to achieving a truly sustainable society. The energy generated from renewable sources is not constant but varies throughout the day. Specifically, the peak power generation happens during noon, when the sun is shining the brightest, and the minimum occurs after sunset. However, Human energy consumption has a tendency to be the opposite, since individuals are away from their homes during noon and return in the evening. This means that grids with a high sustainable penetration rate often struggle to cope with this imbalance of supply and demand, which manifests itself as a duck curve. One way to fix this issue would be to invest into a large amount of energy storage such as batteries or vehicle to grid technology.

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