Aggregating load is useful to get a sense of overall scale, but per use costs are probably a more realistic proxy. One query is ~2Wh. At average retail pricing

Aggregating load is useful to get a sense of overall scale, but per use costs are probably a more realistic proxy. One query is ~2Wh. At average retail pricing (17.5c per kWh) that's like... 0.035c per query. You're at like 30 queries before reaching a second cent of electricity. A monitor is like ~10-20W. So one query is like having your monitor on for an extra 12 minutes a day. At this scale, there's going to be no consumer side incentive to conserve.