A number of recent articles deal with the market/supply challenges (put mildly) of the increased presence of uncontrollably intermittent renewable generation in energy mixes. The articles appear to be precipitated by leaks from a pending EU Commission report
FAZ/EWI Energy Conference: Oettinger on Harmonsation of Renewable Support, EEG Surcharge, Loop Flows, Capacity Markets « German Energy Blog:
"The EU Commission is becoming increasingly displeased with Germany’s energy policy and its lack of European coordination, the newspaper Frankfurter Allgemeine Zeitung (FAZ) writes. Climate protection and energy efficiency could be better promoted on a larger scale than by individual national measures, EU Energy Commissionar Günther Oettinger said at an energy conference organised by FAZ and the Institute of Energy Economics at the University of Cologne (EWI)."The article notes Oettinger concurs with a recent Deutsche Bank assessment of the renewables surcharge Germany's residents pay:
...the EEG surcharge could otherwise not only rise from 3.592 ct/kWh in 2012 to approximately 5 ct/kWh in 2013 as widely predicted, but to 6 or 7 ct/kWh and including VAT something like 9 ct/kWh, endangering public support for renewable energy