What's included in retail gas prices
If you choose to buy from a gas marketer, your gas delivery won't change. You will still get a bill from your distribution utility which will indicate a regulated Delivery and Transportation Charge - about 1/3 of your bill that goes to the utility, and a Gas Supply Charge - the remaining 2/3 that goes to the competitive gas supplier you chose. If you have rental equipment or a service contract, these will appear as well.
Remember this split when comparing costs. Gas marketers offer rates on your Gas Supply charge, which is about 2/3 of your bill.
Your utilities distribution rates are regulated by the Ontario Energy Board. As a result, when a promotional message claims a 10% saving, it is referring to 10% of the 2/3 controlled by the competitive supplier.
Example: A typical annual gas bill is $1,200. One third of that, $400, is a regulated transportation and delivery charge. The remaining $800 is the gas supply charge. A competitive gas supplier is offering a 10% saving is offering a saving of $80, which is 10% of the $800 gas supply charge.