Idaho Power Company has asked the Idaho Public Utilities Commission for permission to raise its power rates.  Idaho Power says there are several reasons for a raise in rates including growing energy demands, aging infrastructure and higher compliance requirements.  Idaho Power says it needs an additional $82.6-million dollars to serve its customers.  If the raise is granted it would mean residential rates would go up 8.8 percent.  Irrigation customers would see an increase of just under 15 percent.  Large commercial customers would see an increase of just over 7 percent.  The IPUC will be holding a local information workshop on the request that if approved, would take place January first.  The Twin Falls hearing will be held next Wednesday, the 21st, in Twin Falls at the City Council chambers.  The IPUC will hold a workshop at the beginning and Idaho Power representatives will then answer any questions.