answer:Yes, you can get a watt meter and install it on the big appliances (dryer, hvac, water heater). Desktop PCs and coffee makers are negligible – don’t even bother with stuff like this. Focus on the HVAC and water heater, and if you have an old washing machine and dryer then that could be contributing also. Everything else drawing electricity in a typical household pales in comparison to these. Also, check to make sure the price per kWh hasn’t gone up.