Doors Open Ontario

The Doors Open Ontario 2018 season was a great success. Over 482,000 people visited sites in communities across the province. Thanks to our sponsors, partners and volunteers for their support, and to all who participated.

St. Lawrence Power Development Visitor Centre Doors Open Cornwall and SDG Counties

St. Lawrence Power Development Visitor Centre

The 1,208-square-metre (13,000-square-foot) Ontario Power Generation (OPG) visitor centre, which opened in 2010 and was built to LEED standards, offers visitors an interactive and educational experience. Learn about the St. Lawrence Seaway, the power project and its impact on surrounding communities, electricity generation at OPG, and the American eel.

Tell us your story about this site

  • Parking
  • Full wheelchair access
  • Washrooms
  • Kid-friendly


Year built: 2010
Architect: Thompson Rosemount Group
Building type: Commercial, Green building

Dates/hours open

Saturday August 18, 2018
Saturday: 10 a.m. to 4 p.m.

St. Lawrence Power Development Visitor Centre 2500B Second Street West