And even as a visitor, Giambi, who has 429 career home runs, including one this season, says he enjoys the energy.
Actually, he doesn't mind the venue either.
"I like hitting there," he said.
It shows in his limited work.
During his last game at Citizens Bank Park on May 19, 2011, Giambi hit three home runs in a 7-1 win over the Phillies. The first two homers were against Kyle Kendrick and the final one was surrendered by Danys Baez.
"I have hit two in a game but I had never hit three before," said Giambi, who is batting .364 with five home runs and 10 RBIs in 22 career at-bats at Citizens Bank Park. "It's something you dream about."
Now 41, Giambi became the fourth player to hit three homers in a game after the age of 40, joining Babe Ruth, Stan Musial and Reggie Jackson.
He said in places like Philadelphia and New York, the difference between winning and losing simply means everything to the fans and adds more excitement.
"If the Yankees don't win or if the Phillies don't win, the fans don't go home and sleep," he said. "It's a fun combination because when you are doing really well they are right behind you, and they push you when you are struggling."
Contact Marc Narducci at 856-779-3225, email@example.com or @sjnard on Twitter.