The heat has caused higher electric usage in recent days. City officials say the supply of natural gas may be reduced if Hurricane Rita adversely impacts oil production in the western Gulf of Mexico later this week.
Still, officials say customers will not have any power problems.
David Byrne says, "I wouldn't expect that this will cause us to interrupt any customers."
But higher fuel costs will be passed on to the customer. Starting on October 1, residential customers will see a 13 to 14 percent increase in their energy bills. This rate hike is expected to last approximately six months.