On October 1, 1985, the station started carrying the call letters DWKY and rebranded as KY 91.5.

Ben Tulfo and Daniel Razon were two of the station's disc jockeys In 1998, Manny Luzon became FM Operations Consultant for MBSI.

From July to November 2006, The Edge Radio of United Christian Broadcasters occupied the 6pm-6am timeslot of Energy FM.

[citation needed] In 2010, Manny Luzon eventually left UBSI to join Progressive Broadcasting Corporation (where he transformed NU 107 to 107.5 Win Radio).

In July 2011, a month after the rebranding, Vanguard Radio Network (VRN) filed a legal trademark infringement case at the Intellectual Property Office against Luzon.

[3] The case was upheld in 2017, and Luzon violated Section 147 of the Intellectual Property Code of the Philippines.