Which band recorded the 1989 album Energy, its only full-length studio album?

Operation Ivy recorded the 1989 album Energy, its only full-length studio album.

Energy was released by Lookout! Records after Operation Ivy had already broken up. The Berkeley, California, band combined melodic hardcore, ska rhythms, and politically conscious lyrics, helping establish the sound later associated with ska punk.

The album contains songs such as “Knowledge,” “Sound System,” “Big City,” and “Smilin’.” Although it was initially released in a modest underground context, Energy became highly influential among 1990s punk bands. Its reputation grew through word of mouth, touring networks, and the expansion of independent punk labels.

Operation Ivy ended in 1989, before the album’s release. Singer Jesse Michaels and bassist Matt Freeman later pursued separate projects, while Freeman and drummer Dave Mello became members of Rancid alongside former Operation Ivy vocalist Tim Armstrong. Energy is therefore often discussed as a bridge between the late-1980s punk underground and the 1990s ska-punk revival.