The solar installation, north of Copenhagen, has a capacity of 605kW, and is connected to the public grid in January 2012.
Germany-based SRU Solar constructed the PV system on two roofs of an office complex located in Virum, in cooperation with the young Danish energy company Greengo Energy.
The project is a major step forward for the Danish PV market.
Canadian Solar chairman and CEO Shawn Qu said solar energy offers great potential for a cost-effective and reliable source of electricity, particularly in countries with a highly decentralized structure like Denmark with its many small islands.
Canadian Solar is a vertically integrated provider of ingot, wafer, solar cell, solar module and other solar applications.
