Bi-Directional Charging: Enhancing Energy Storage Solutions
One of the most promising technologies emerging from this intersection is bi-directional charging, which allows EVs to both draw power from the grid and return energy to it.
Energy storage at the airport is an interesting alternative to supply electric aircraft charging. It can support electric aircraft charging and reduce peak charging power, thus reducing peak demand from the grid. This limits stress on the surrounding power grid and may reduce the cost of more extensive grid connections to the airport.
Several methods are available for airports to supply the electricity demand from aircraft charging, each with challenges and opportunities. The energy transition at airports also includes introducing electricity production from renewable energy sources and implementing energy storage systems.
When cost-effective, mobile charging systems could be used instead of, or as an alternative to, plug-in charging to allow remote charging. These charging methods will result in a fluctuating power demand for the airport, alternating from no demand to an electricity demand of several megawatts, depending on the number of aircraft.
Batteries are the energy storage technique with the highest potential for early airport implementation due to their high efficiency. The dual usability of hydrogen, following the introduction of hydrogen aircraft, makes it a viable option for future airport implementation.
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