In the U.S., residential rates are, in general, going to be far higher than the industrial rate in nearly every specific region.

Source: https://www.statista.com/statistics/200197/average-retail-price-of-electricity-in-the-us-by-sector-since-1998

Average energy prices for the United States, regions, census divisions, and selected metropolitan areas https://www.bls.gov/regions/midwest/data/averageenergyprices_selectedareas_table.htm

Reasons home miners continue mining in the current environment vary, but will include how obtaining KYC-free BTC from other methods also incurs a premium, or that the cost of electricity is subsidized or paid by another party, or the heat is reused, etc.