Dec 9 (Reuters) - Ontario-based electricity and gas provider Just Energy Group Inc (JE.V) said on Thursday it expects to recover about $147.5 million in costs from the Electric Reliability Council of Texas (ERCOT) related to a deep freeze in the state in February. Grid operator ERCOT filed its costs calculation on Dec. 7 with the Texas utility commission and were subject to a 15-day verification period, the company said in a statement.Dec 9 (Reuters) - Ontario-based electricity and gas provider Just Energy Group Inc (JE.V) said on Thursday it expects to recover about $147.5 million in costs from the Electric Reliability Council of Texas (ERCOT) related to a deep freeze in the state in February. Grid operator ERCOT filed its costs calculation on Dec. 7 with the Texas utility commission and were subject to a 15-day verification period, the company said in a statement.