I would assume most 7200 RPM drives have similar energy requirements, although it does appear some drives get hotter than others so efficient cooling might incr

I would assume most 7200 RPM drives have similar energy requirements, although it does appear some drives get hotter than others so efficient cooling might increase those requirements by a bit. Cost of storage though can be a bit expensive. I was able to find 20TB CMR drives for around $329 each.