Powerhouse can refer to a number of acts including (1) Florida straight edge hardcore on New Age Records, active from 1989 to 1991. (2) A bay area hardcore band. (3) A studio project featuring Eric Clapton. (4) A Japanese blues band.
(2) Powerhouse formed in 1993 with the intent to awaken the Bay Area scene from it's coma. There were no hardcore bands. There were no hardcore shows. There was no scene and you would be hard-pressed to find a kid who actually claimed to like hardcore