Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:manfred-h:X11:xfce:4.18/openSUSE_Tumbleweed/home:manfred-h:X11:xfce:4.18.repo
zypper refresh
zypper install xfce4-power-manager
Para openSUSE Slowroll execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:manfred-h:X11:xfce:4.18/openSUSE_Slowroll/home:manfred-h:X11:xfce:4.18.repo
zypper refresh
zypper install xfce4-power-manager
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:manfred-h:X11:xfce:4.18/15.6/home:manfred-h:X11:xfce:4.18.repo
zypper refresh
zypper install xfce4-power-manager