Apa itu
Alkaline is cheaper and uses no scarce catalysts, but it responds more slowly to changing power input. The choice between it and PEM is a direct trade between iridium and flexibility.
Daftar kebutuhan material
Skalakan →Kuantitas adalah per MW of capacitykisaran indikatif
| Material | Rendah | Tinggi | Satuan | Dasar |
|---|---|---|---|---|
| Iron & Steel | 2,000 | 5,000 | kg | Stack, frames and vessels |
| Copper kritis | 400.0 | 1,200 | kg | Power delivery |
| Nickel kritis | 300.0 | 800.0 | kg | Electrodes and catalyst coatings |
| Potash kritis | 100.0 | 400.0 | kg | Potassium hydroxide electrolyte |
Indicative range compiled from published technology studies and chemistry; verify against a manufacturer specification before use. Baris yang ditandai "trace" mengandung material dalam jumlah yang terlalu kecil untuk dinyatakan secara bermakna sebagai massa — kendala di sini adalah kemurnian atau jumlah pemasok, bukan tonase.
Alternatif-alternatifnya
Substitusi adalah kekuatan yang paling diremehkan dalam dunia material. Ketika sebuah logam menjadi mahal atau sulit secara politis, para insinyur merancang solusi alternatifnya — dan permintaan terhadap seluruh tambang bisa lenyap begitu saja.
HVDC Transmission Cable
High-voltage direct-current cable, the technology used to move power hundreds of kilometres with low loss.
PEM Electrolyser
Splits water using a polymer membrane, platinum and iridium — fast-responding but catalyst-hungry.
Pressurised Water Reactor
The most common reactor design: enriched uranium fuel in zirconium tubes, water as both coolant and moderator.
Three-Way Catalytic Converter
The ceramic honeycomb in an exhaust that converts three pollutants at once, coated in platinum-group metals.