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Report on Germany: RE deployment possible even with delays in grid expansion

By Paul Dvorak | September 12, 2013

The German electrical grid works in these areas.

The German electrical grid is divided into these areas.

A timely transmission grid expansion is important for the future electricity supply based on renewable energies. A recent study by Ecofys energy consultants shows that even if this expansion is delayed, the planned deployment of renewables can still take place within the next 15 years. In this case, renewable energy installations would have to be distributed more evenly across the country to save costs. With successful grid expansion, however, measures have to be taken to reduce emissions from lignite production.

For the Smart Energy for Europe Platform (SEFEP), Ecofys examined the impacts of a delayed grid expansion for scenarios with a different mix of renewable energy technologies employed. With restricted grid expansion, more regional storage and flexible power plants need to be installed and renewable energy output has to be increasingly curtailed. The corresponding costs can be reduced if the renewable energy installations are distributed more evenly. “If grid expansion is delayed, about €800 million can be saved per year if we spread wind and photovoltaic installations more evenly across the country,” says Christian Nabe, electricity market specialist at Ecofys.

The study shows scenarios out to 2030. By then, renewable energies are supposed to have a share of 70% in electricity production in Germany. CO2 emissions from the electricity sector will have been reduced to a third compared to today.

An increased grid expansion supports renewable energies and facilitates the transport of electricity from cheap lignite. As a consequence, additional political measures are crucial to reduce emissions from those power plants.

”The study shows that rapid expansion of renewable energies can continue. If grid expansion is delayed, we need to wisely manage geographical distribution of renewables. With rapid grid expansion, effective measures to reduce emissions from lignite become even more important,“ explains Raffaele Piria, Program Director at SEFEP. “These are relevant message for the next government coalition in Germany.“ The report is available for download.

Ecofys
www.ecofys.com


Filed Under: News, Policy
Tagged With: ecofys
 

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Paul Dvorak

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