OK gentleman, I need some assistance with an issue. Since July 2018 our utility bills have climbed to an astronomical amount despite no real change in our amount of time on the boat. When we leave we turn the heat/air down to merely lower the humidity amount throughout, not to maintain a comfortable temp. We have (1) 50amp that we use, that's it. We have four AC/heat units, the forward stateroom is almost never on, master stateroom kept a little cooler/warmer than elsewhere. We do very little cooking in the galley, mostly grill outside.
Our monthly bill was around $100-120/month, which I was ok with but then fall weather came in and the bill started reaching $150-160. November was $75, December/Jan/half of Feb $565, over $200/month.
What in the hell could be going on here? What are the average monthly costs others are seeing on there 55'ish boats?