The average monthly energy bill depends upon energy rates, weather and home sizes. The states with the biggest average monthly bills are:
1. Connecticut, $404
2. Massachusetts, $346
3. Rhode Island, $338
4. Vermont, $332
5. Georgia, $328
6. North Dakota, $328
7. Maine, $327
8. New Hampshire, $325
9. Indiana, $325
10. Mississippi, $323
Source: WalletHub
