WARSAW, Dec 4 () – Power prices for Polish households could go up by around 10% next year as the government will no longer intervene to keep them down, Poland’s development minister told the Business Insider website on Wednesday. The ruling Law and Justice party (PiS) imposed a cap on household power tariffs this year in an effort to prevent a spike triggered by rises in carbon emissions costs and coal prices. Poland saw an increase in inflation earlier this year and the potential impact of power price hikes is closely watched by economists. “How much will prices rise? … Personally I do not expect a dramatic increase. For private households it could be around 10%,” Jadwiga Emilewicz said. The energy regulatory office will announce its decision on raising energy tariffs on Dec. 17. (Reporting by Alan Charlish; Editing by Mark Potter)Our Standards:The Thomson Trust Principles.