Answer:
These Challenges can be technical. The location of Canada contributed to this. The cold temperature of Canada e,g Edmonton with Winter temperatuture of -32 degrees,and Winter solstice of 7.5hours of daylight put barriers to the activities of the working group in the design of the net-zero house.
Besides demand for water heating for usage ,in the cold winter, space for working are additional factors affecting the design of these houses.
Furthermore, limited domestic electricity and days of intensive sunlight intensity are additional barriers,
Explanation: