With　the　increasing　number　of　distributed　energy　sources　and　the　growing　demand　for　free　exchange　of　energy,　Energy　internet　(EI)　is　confronted　with　great　challenges　of　persistent　connection,　stable　transmission,　real-time　interaction,　and　security.　The　new　definition　of　metaverse　in　the　EI　field　is　proposed　as　a　potential　solution　for　these　challenges　by　establishing　a　massive　and　comprehensive　fusion　3D　network,　which　can　be　considered　as　the　advanced　stage　of　EI.　The　main　characteristics　of　the　metaverse　such　as　reality　to　virtualization,　interaction,　persistence,　and　immersion　are　introduced.　Specifically,　we　present　the　key　enabling　technologies　of　the　metaverse　including　virtual　reality,　artificial　intelligence,　blockchain,　and　digital　twin.　Meanwhile,　the　potential　applications　are　presented　from　the　perspectives　of　immersive　user　experience,　virtual　power　station,　management,　energy　trading,　new　business,　device　maintenance.　Finally,　some　challenges　of　metaverse　in　EI　are　concluded.　©　2022　IEEE.