Source: X (Mark Carney)Author: Alex DhaliwalA company linked to Prime Minister Mark Carney’s former employer is seeking to lock Canadian hydroelectricity into a 30-year export deal with the United States, raising fresh questions about whether Ottawa is putting Canadian energy interests first.Powell River Energy Inc. (PREI), a subsidiary of Brookfield Renewable, has applied for a licence to export up to 700,000 megawatt-hours of electricity annua…