For example, a better integrated grid would bring a €1,500 million yearly reduction in total operational costs of power generation due to the increased availability of all generation capacity.
The report shows how Denmark, Germany, Spain, Ireland and the Netherlands have managed their power systems much more flexibly than in the past.
"Powering Europe" is to be announced at the GRIDS 2010 conference in Berlin.
The European Commission last week identified four grid connections necessary to ensure the EU's electricity network is able to transport power produced by wind and other renewable sources.