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Gdynia trolleybuses running on electricity generated from a solar power plant and fed directly to the overhead wired infrastructure

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In 2017 the trolleybus transport operator PKT from the city of Gdynia, north of Poland on the Baltic Sea Coast, made plans and applied for co-financing of a breakthrough investment to install a photovoltaic plant on the roofed spaces of the trolleybus depot with an aim to feed solar energy straight into the overhead lines.

After acquiring the funding PKT GDYNIA has commenced the construction works, which ended mid-2024. The plant has been launched and the system is now fully operational, covering about 5% of the total grid energy consumption needs. Gdynia innovative PV system is an example of a large power plant of 499 kWp.The photovoltaic panels cover the space of impressive ca. 5 000 m2, which is approximately the size of a regular football pitch.

The operator is extremely satisfied with the results of the solar plant operation which already brings considerable cost savings, especially taking into account high energy costs. It is worth mentioning that the solution is by no means an obstacle for regular grid functioning.

Undoubtedly, Gdynia trolleybuses power plant is a breakthrough solution, which should definitely become a new standard in direct supply of green energy to electric public transport networks.

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