Maybe in small areas it works – they talk about 10 acres of heated sidewalks and streets, and mention that they’re using “waste heat”. So for 10 acres, it might work. I think that for a full city (keep in mind that Holland has a population of 33,000, which is tiny), there wouldn’t be sufficient “waste heat” – whatever that is, and the building and upkeep cost would be immense. Imagine doing this in Chicago, New York, or even a smaller city like Cleveland.- the costs would be huge. While it’s not a bad idea, the cost of building and maintaining this sort of infrastructure would far outweigh the cost of plows. Finally, the article mentioned that the maximum melt was only 1” per hour. That means in a serious blizzard, it would be worthless.