Ameresco, Inc., (NYSE:AMRC), a leading energy efficiency and renewable energy company, announced today that it was selected by the City of St. Helens for an energy savings performance contract (ESPC). Ameresco will audit, design, and implement the project, and assist with securing the financing. The project includes upgrading 915 high pressure sodium (HPS) street light fixtures to LED technology, in addition to identifying other efficiency, utility maintenance and infrastructure improvements.