The document, to be discussed by ministers over breakfast, is the latest from the European Commission to urge all 27 member nations to put collective energy needs above domestic agendas.
It follows announcements by Germany, which has unilaterally decided to phase out all its atomic plants by 2022 following the nuclear disaster in Fukushima earlier this year.
Italy voted to ban nuclear energy in 1987 and again rejected any resumption of the power source in a referendum this year.
The commission paper said less nuclear power reinforced the need for an EU-wide power grid, which the European Commission aims to achieve by 2014.
"This has highlighted that in an interconnected energy system and in the internal market all member states are affected by such decisions taken at national level and therefore have legitimate interests in ensuring they are effectively coordinated," it said.
"Until now, there has not been a systematic effort to bring national policy-makers together to coordinate their approaches to energy generation or to support each other and the Commission with their views and experience."
The Commission's ambitions to increase its oversight over energy issues have rankled some member countries and the private sector.
Earlier this month, Günter Oettinger, the EU's energy commissioner, unveiled proposals aimed at strengthening the EU's hand on energy matters vis-à-vis foreign countries such as Russia.
Analysts interpreted that as an attempt to prevent cosy bilateral ties between big gas consumers, such as Germany and Italy, and their major supplier Russia.
Poland, a traditional transit state that has clashed with Russia over transit fees, is bypassed by the new Nord Stream pipeline to ship Russian gas to Germany.
Shared infrastructure could maximise available supplies, helping to mute the impact of disruption, as well as improving energy savings, the Commission paper argues.
"The Germans quickly and unilaterally decided [to phase out nuclear]," said Katinka Barysch, deputy director of the Centre for European Reform in London. "They did not consult with their European neighbours and now after the event we're scrambling to cope with the consequences."
EurActiv with Reuters