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18.06.2013
Children's hospital in Haiti can drastically reduce its energy costs with the D:Hybrid (diesel/photovoltaic) system from DONAUER

Haiti is one of the poorest countries in the Western world, yet there is one resource that it has in abundance - the sun. The children's relief organisation nph Germany and its Haitian sister organisation nph Haiti took advantage of this in order to reduce the high energy costs for diesel of around 150,000 euros annually at the St. Damien children's hospital.

They hired the energy experts from DONAUER Solartechnik in Gilching, Germany, to install an East/West photovoltaic rooftop system with nominal power of 85kWp, and to link their innovative D:Hybrid Energy Management to the existing diesel generators.

D:Hybrid Energy Management is a new technical system solution from Donauer, which can be used to integrate a solar system into a generator power grid in order to save on diesel fuel. This involves synchronising the solar system inverters with the frequency and voltage of the existing diesel generators. This requires a control system that monitors the energy consumption and energy supply and adjusts the feed-in power of the solar inverters accordingly. The intelligent diesel/PV hybrid system also enables solar power without battery storage. This is a pragmatic and practical solution to feeding solar power into generator grids, and it also saves on expensive fossil fuels. The monthly cost saving of up to 4,000 euros for the children's hospital can now be used instead for urgently needed medical supplies.

As a pioneer, Donauer has specialised in the integration of photovoltaic systems into existing diesel networks, thus setting standards for a future-orientated energy supply concept. The focus is always on reducing operating costs while guaranteeing a reliable power supply. Our services range from small hybrid systems, starting from 100 kVA, to large-scale industrial plants.

There is huge demand worldwide for diesel/PV systems due to the significant savings in operating costs, the resulting economic appeal and, last but not least, the enormous reduction in CO2.