Why does my electricity bill rise so sharply during peak season?

During peak season, your electricity consumption rises much faster than your occupancy, because guests then consume more per night: air conditioning or heating runs harder, and there is more showering, laundry, and cooking by more people. As a result, your energy bill grows faster than your revenue, and you structurally lose margin if energy costs are fixed in your nightly rate. Calculate this with your own meter readings and booking figures to see if this applies to your property.