Instead of suggestion what I've found amazing over time, these were essentials to start with. Note: I was moreso interested in harsh noise and industrial-ish music. I think many of the folks above have given great power electronics suggestions...
Ryan Bloomer "Forearm Shiver" C69 (Self Abuse): Absolutely incredible harsh noise artist. Grating feedback, dense distorted rumbles and very adept at building tension. This was his best, or maybe
"Bully Hiss" on Phage.
Sewer Election & Treriksröset "Rågsved" C30 (Thorax Harsh Cassettes): Two kingpins of Swedish harsh noise. They've put out many collabo's together, but this was always my favorite. Just gritty, direct.
Body Collector "Acidic Dread" C30 (Nurse Etiquette): First time I ever heard anyone play with silence. With contact mic's. Sheet metal that wasn't disguised by a million effects. His early work was pure distortion, but this album and beyond were exciting bits of experimental noise.
Ultra "Spray / Death / Ultra" LP (Dom America): Suggested by Ajna Offensive, this album kinda opened it all up. Depraved, experimental, subtly harsh. The most "musical" item here.
Ahlzagailzehguh "Black Destination" 2xC20 (Truculent Rec.): One of the best harsh noise albums I ever heard. Relentless. A fist direct in the face.
Burial Hex "Gripster Killer" C30 (Hate Song): One of the most eclectic and adventurous characters in the world of noise. This early tape was when he was still deeply indebted to early European noise pioneers. The sound of another dimension ripping open.
Bizarre Uproar "Triumph" 2xC44 (Cathartic Process): Not the BU you'll hear discussed quite as much. This is a monolith of shrill and menacing noise.
C.C.C.C. "Chaos Is The Cosmos" CD (Cold Spring): Psychedelic noise master-group.
Mo*Te "Life in a Peaceful New World" C60 (Hebi Like A Snake): Fuzz till kingdom come. As it's been suggested, probably an early inspiration to the creation of the "noise wall".
Taint "Misogynist Lust" C48/CD/LP (Taint Ent./Freak Animal): My favorite by this legend. Not as "stalkerish" as his other works. A crumbling mass.
Treriksröset "Sexregler" CD (Troniks/Chondritic Sound): One of the best 40+ minute albums of linear harsh noise I ever heard.
Chop Shop "Powerdrunk" C46/CDr (Banned Prod.): One of the more "quiet" works you'll ever hear that is also mammoth. A very fascinating artist.
Le Syndicat "Rectal Struggle" C60 (Broken Flag): Maybe you could call this an early or ur-power electronics album. Lots of voice, although maybe all samples, across a melee of synth and grit. Legendary label to research. Look into "As Loud As Possible #1" magazine...
LXSS "Twist And Decease" C60 (Multiple Configuration): Exotic and surreal industrial album. Haunting and experimental.
Piss Horn "Hatred Mountain" C30 (Nurse Etiquette): One of the "darker" albums I've ever heard.
XX Committee "Steel Negro Music" CS/CD (A.R.P.H. Tapes/Trash Ritual): Amazing mixture of ambience, rhythm, and metallic din.
Macronympha "Pittsburgh, Pennsylvania" LP/CD/C47 (Praxis Dr. Bearmann/Trash Ritual/Mother Savage): Along with Skin Crime, Macro- is the end-all-be-all of American harsh noise.
Skin Crime "Skin Crime" LP (Force Of Nature Prod., Hospital Prod.): Yep...
Like some others, I'm sure, I am forever grateful for Joe Roemer's 100 essentials list:
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