By 2050, current projections indicate that two in every three persons will live in urban areas and the cities will absorb 3 billion people during this period. Cities are consuming three-quarters of the world's energy and causing three-quarters of global pollution. To reduce these impacts, new technologies are present in the development of smart sustainable cities, but technology is not always provided a good effect. The question being addressed is whether sustainable consumption can combat the rebound effect of the implementation of new technologies providing greater efficiency in the consumption of citizens.