"We haven't been doing anything different to what we always do - we wash our clothes in cold water, and make sure we turn things off when we're not using them.
"We've got a heat pump, which will give us $200 bills in winter.
"I switched to Nova, because everything was meant to be cheaper - but this is not cheap."
Mr Warrington said alarm bells first started ringing when, in August, he received a higher than usual bill of around $300.
He contacted Nova Energy, who said they would send a technician to inspect the property and his electricity meter.
"But no-one showed up," he said.
He received a second bill that month, with the reduced amount of $177.57, which he paid on time.
However, 25 days after the August meter reading, the most recent reading yielded the $988.38 figure.
Nova Energy informed Mr Warrington he may be experiencing a "power leakage."
"I rang up the complaints line and they said there was no such thing as a power leakage.
"Again, they said they'd send somebody around to take a look - but it's been a week, and I haven't seen anyone."
In the meantime, Mr Warrington has been told not to pay his bill until his property has been inspected.
"They charged me $800 for just 25 days - imagine if another month goes by, and I end up with an $1800 bill I still have to pay?
"I've never been late with a power bill before, and I don't want to fall behind," he said.
The Times-Age contacted Nova Energy on Mr Warrington's behalf, and was advised the company "doesn't discuss publicly the private details of its customers".
However, communications manager Mark Reynolds said the company "is always happy" to work with customers with unusually high power bills by checking meter readings or the metering equipment.
Mr Warrington plans to stay in touch with Nova Energy until the matter is resolved.
