The policies, of unprecedented scope, will carry a plain warning: High and volatile oil prices, surging demand, unreliable supplies, and global warming compel Europe to reconfigure its energy supply before it's too late.
"It's the biggest issue. It affects all of us. Just try living without energy for a few days," said Elena Nekhaev, director of programs at the London-based World Energy Council, a nongovernmental organization.
The European Union, the second-largest consumer of energy in the world, after the United States, is also the largest energy importer, looking abroad for just over half the energy it needs.
Within 20 years, at current rates of consumption, the EU could depend on foreign suppliers for 70 percent of its energy, the commission says.
The EU's blueprint plots a different path: lower energy consumption, the development of renewable sources, and research into other alternatives, and ways of cutting carbon emissions from fuels already in use, particularly coal.
But changing course won't be easy, experts say.
"The big debate is, who is going to pay for it and equally, are people willing to make the modifications that will be needed to do it," said John Loughhead, executive director of the U K Energy Research Center in London.
Are Europeans ready to change the habits of a lifetime? Shoulder the added costs of research? Open the door wider to nuclear power? Surrender their countryside to wind turbines and solar panels?
Eero Heinaluoma, the finance minister of Finland who recently headed a group of experts reporting on the European energy sector, detects a shift in public attitudes.
He says alarm over possible climate change coupled with last year's spike in oil prices brought a tipping point that will inspire "a third industrial revolution."
Other observers, though, fear governments may balk at signing up for drastic changes that could cause a backlash at the ballot box.
The European Renewable Energy Council, a Brussels-based industry group, says all but two of the European Union's 27 member states, Germany and Denmark, are shying away from binding targets for renewable energy production that are a central plank of the new policy.
