Sentinel Energy Management Inc. (SEM) is a consultancy offering energy solutions to business and industry in British Columbia. Whether it be acquistion and supply, asset management, regulatory support or DSM, SEM will craft a custom solution to meet your specific needs. Where broader solutions are required, SEM will partner with qualified vendors and service providers to provide the most economical right fit solution. SEM's Principal is James Langley, a Professional Engineer with over 25 years experience in the BC energy market.