John Costello

John Costello is an experienced energy professional, currently serving as Senior Business Development Manager at Constellation Energy since March 2011. With expertise in managing energy expenses through consultative selling of electricity, natural gas, load response, renewables, and efficiency projects, John Costello focuses on achieving cost savings and effective risk management that positively impacts profit and loss statements. Prior to this role, John Costello was a Business Development Manager at Gateway Energy Services Corporation, where responsibilities included commercial account sales of electricity and natural gas. John Costello holds a BA in Psychology and Marketing from Johnson State College, completed in 1991.