Power supply for lighting obstructions

Customer: Windkraft Service GmbH, Location: Lutherstadt Eisleben, Europe

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General information about your application:

Windkraft Service GmbH, Eisleben, is a service company for maintenance, inspection and repair of wind turbines. Windkraft Service is using EFOY Pro fuel cells in a customized self developed solution. This complete system is rented out to wind turbine manufacturers to supply the obstruction lighting during the construction phase of the plants.

Which energy problems or challenges did you have to address?

The supply of obstruction lights with electricity during construction of the plant is an important issue in Germany. The power supply is not available until the completion of the wind power plant. Therefore we have looked for alternative solutions to power the light. Generators are often very noisy and have a lot of issues and relatively high maintenance costs.

Why did you select EFOY Pro?

For equipment manufacturers, the innovative fuel cell solution is much cheaper than for example diesel generators: In 20 days of operation, the generators consume 8,000 liters of diesel, while the fuel cells require just 75 liters of their operating fuel. This not only saves costs, but also logistics. In addition, the environmentally friendly, quiet fuel cells offer significant CO2 savings compared to the combustion generators. The EFOY Pro fuel cell can be also, unlike the diesel generators, operated directly inside the wind turbine. That eliminates the measures necessary to protect the generators against theft and vandalism, leading to further cost savings.

The Solution:
EFOY Pro 1800

The EFOY Pro 1800, the latest fuel cell generation, is the ideal power supply solution for this application.

more about EFOY Pro 1800

“Dramatic drop of operational costs”

In 20 days of operation, one generator consume 8,000 liters of diesel, while the fuel cells require just 75 liters of their operating fuel. If you also add a simplification in logistics, this represents a dramatic drop of operational costs.

Mr Joerg Hebestadt, Managing Director

How is the EFOY Pro integrated in your installation?

The EFOY Pro fuel cells are housed together with the battery and the fuel cartridge in an EFOY ProCube also supplied by SFC Energy. The EFOY ProCube is used directly in the gondola of the wind turbine.

How many EFOYs do you use?

We currently have 25 EFOY ProCubes in use, which are leased to different wind turbine installers.

What are the benefits of using the EFOY in your application?

We provide our partners a more reliable and more environmentally friendly technology which enables significant cost savings for the end consumer. Windkraft Service GmbH launched a package of product and service and thus relieves the investment budgets of the wind turbine operators.