Germany’s Chancellor Angela Merkel said the country’s system to spur clean-energy generation needs to change, including reducing green subsidies paid by consumers, to ensure gas-fired plants are able to operate at a profit. National and state leaders “in the next months and at least one to two years” need to find a way to change the so-called EEG law on subsidies, Merkel told a conference in Frankfurt late Wednesday. Merkel has been trying to prevent a voter backlash as costs to expand clean energy surged after the country sought to more than triple the share of renewables in its power mix by 2050 while phasing out nuclear generation.