Rabirashmi, India's first solar housing complex, conceived by WBREDA and engineered and managed by Bengal DCL on a plot of 1.76 acres in New Town Kolkata. A dazzling milestone in the development of housing complexes in India where every owner not only has his land but also generates his own power for domestic use as well as for feeding the grid.

Solar PV (Photo Voltaic) technology has a widespread application and is used to convert solar rays into electricity. About 700 MW of generation capacity has been added in 2004 alone, bringing the world total to 2500 MW.The application of Building Integrated Photo Voltaic (BIPV) technology, used in Rabirashmi , has been growing a rate of more than 50% during last 10 years, Japan, Germany and USA having taken the lead.

In Rabirashmi, each home generates 2kW of power from solar tiles on the roof for its own consumption and feeds the surplus into the grid. The owner gets power from the grid as and when necessary. Benefits of Energy Banking is also available to the house owners. Each house has solar water heaters and solar signage; area lighting is done by solar streetlights.