Springfield (The Simpsons) endowed with flippered mutants. In the Season 25 episode "Homerland", he comments that the air conditioning system has never worked properly. In one episode, Mr. Burns mentions that he owns the electric company as part of his power monopoly. The design and folly of Springfield Nuclear Power Plant is often rumored to be based on the troubled Trojan Nuclear Power Plant (closed in 1993 due to defects) near Matt Groening's home town of Portland, Oregon, or the Hanford Site in southeastern Washington. However, Antonia Coffman, Groening's publicist, has said that the Springfield plant's design is generic and that "the Springfield
Matt Groening characters after members of his own family: his parents, Homer and Margaret (Marge or Marjorie in full), and his younger sisters, Lisa and Margaret (Maggie). Claiming that it was a bit too obvious to name a character after himself, he chose the name "Bart," an anagram of brat. However, he stresses that aside from some of the sibling rivalry, his family is nothing like the Simpsons. Groening also has an older brother and sister, Mark and Patty, and in a 1995 interview Groening divulged that Mark "is the actual inspiration for Bart." Maggie Groening has co-written a few "Simpsons" books