How much energy does a cascade generate?

The cumulative installed turbine capacity for the cascade turns out to be 81 MW. The Annual Energy Yield (AEY) from regular hydropower alone is 225 GWh. In addition, the yearly surplus power that can be processed for energy storage purposes is 137.2 GWh, of which 77.2 GWh is returned to the grid by a round-trip efficiency of 56.25 %.

How much energy is stored in a river cascade?

As a result, the storage volumes in the cascade vary between 1,950,000 m3 and 7,360,000 m3. In Figure 2 kilometers ( Beurskens and van Dongen, 2018). 2020). ( Rijkswaterstaat Waterinfo, 2019). As a result, this steep bed slope causes limitations for energy storage. When the flow the river water will flow downstream.

Can a pumping station provide energy storage for Cascade hydropower stations?

Energy storage of cascade hydropower stations achieved via a pumping station. Feasibility of the large-scale cascade hydropower energy storage system is evaluated. Excess electricity can be effectively utilized to recover water potential energy. Pumping station efficiency is critical to the economic feasibility.

What is a large-scale Cascade hydropower energy storage system (LCHES)?

The retrofitted cascade hydropower system is called the large-scale cascade hydropower energy storage system (LCHES) in this paper. As shown in Fig. 3, the pumping station can utilize external excess electricity to pump water from downstream reservoir back to upstream reservoir, thereby recycling water potential energy. Fig. 3.

How much power does the Meuse Cascade produce?

In this way, the cumulative installed capacity of the Meuse cascade is 50.3 MW resulting in a hydropow er AEY of 205 GWh with a capacity factor of 0.47. The AEY of pumped stored powe r is 31.6 GWh processing a yearly surplus power of 56.2 GWh. The combined capacity factor for hydro- and pumpedstored power is 0.54.

How far can a Cascade Reservoir be from a pumping station?

According to the simulation results for the multi-year average representative year (2017), the maximum distance between the cascade reservoirs can be extended to over 20 km, as long as the overall efficiency of pumping station system is more than 55% ( Fig. 14 (a)).