Static, Black Lightning, and Black Vulcan all have the exact same power set...
Sort of:
Black Lightning 1977- the original, at first used a belt that allowed him to generate electricity, force-fields, etc, although it was later revealed to be an innate power the belt just helped him harness it. He doesn't need it, and it's no longer referenced. He also manifested repulsion field which grants him the ability to fly. Pierce was also an Olympic-level physical athlete.
Black Vulcan 1977- was really just Superfriends version of Black Lightning
(just changed so DC didn't have to pay creators Tony Isabella and artist Trevor Von Eeden), his powers became more cartoon extreme, Flight was a regular phenomenon, in fact he could transform into living lightning, and in this way travel at light speed, pretty much a super speedster. As well as generating electricity and lightning bolts, he could also make hard light lightning bolts, in the forms of weapons, swords barriers, cages etc.
Static 1993 - on the other hand is more electromagnetic, like Magneto, although has both electrical and magnetic energy allowing him to generate electricity and move and ride metal objects.
(there was also a previous Static by
Steve Ditko 1983)
Personality they are very different.
I do like how Young Justice, by pairing Virgil with Long Shadow, Dorado and Sam, implied they were all four together analogues of the Superfriends creations.
Although I've seen some Static fans hate that he was even associated with Superfriends.
There was also the JLU Timm/Dini Animated Universe analogues; The Ultimen
Wind Dragon, Juice, Long Shadow, Shifter & Downpour (they left off Dorado)