Avista Corp.’s proposed sale to Hydro One Ltd. has safeguards to protect local customers from Canadian government interference and rate hikes if the Toronto-based. and natural gas to customers in. The new flat rate of 5 percent for everyone means that small companies and Kentuckians with below-average incomes will face tax hikes, and higher earners. Majority Leader Jonathan Shell (R) told. Hiking season is in full swing across Washington and…