On a warm fall evening in August, two young couples gathered outside a Toronto condo on an open air patio.
The temperature was only a shade under 70 degrees, but it was still a pleasant, mild fall day.
The condo was equipped with solar panels that produced enough electricity to heat up the room, which was in a small room.
The windows were also equipped with energy efficient screens.
The couple said they felt like they were living in a solar house.
The technology is now commonplace in many places, but in Canada, only about a third of residential buildings are equipped with the technology.
This story originally appeared in The Canadian Press.