Town snapped a four-game winless run with a creditable victory over Championship high-fliers Brentford last Saturday, a result that strengthened their belief on home soil.
But it is their form on the road that is troubling Powell. They have won only twice away from the John Smith’s Stadium this season, and not for five games.
The last three of those were defeats, leaving Powell to concede that it is undermining their solid home form.
“We’ve made our own stadium a bit of a fortress now, it’s just away where we know we have to improve,” said the Terriers boss.
“I don’t want to make a big song and dance about it, but we’re under no illusions because we know we have to be a bit more miserly away from home. Teams coming to our place know if they can take something from us they’ve done quite well.
“We need to improve our fortunes on the road.”
To kickstart that policy, Powell wants his Terriers to have no fear when they visit Carrow Road today to take on a Norwich side who, despite being eighth in the table and harbouring hopes of an instant return to the Premier League, have won only three times at home.
“They’re a former Premier League squad, they’ve spent some money and bought some good players,” said Powell. “But they’re in the same league as us and we’ve got to believe we’re capable of getting something down there.”
Norwich manager Neil Adams has said they will look to keep Huddersfield loanee Grant Holt quiet on the big man’s first return to Carrow Road.
“He plays high, he leads the line, he makes it difficult to mark him and he is a threat,” said Adams.