其定义
HVDC is how offshore wind reaches shore and how continents get connected. It is copper or aluminium by the tonne per kilometre, plus converter stations full of power semiconductors.
材料清单
放大规模 →数量为 per km of circuit参考区间
| 材料 | 低 | 高 | 单位 | 基准 |
|---|---|---|---|---|
| Copper 关键 | 20.00 | 120.0 | t | Conductor, subsea designs at the high end |
| Iron & Steel | 20.00 | 80.00 | t | Armouring |
| Aluminium 关键 | 15.00 | 60.00 | t | Conductor in overhead and some cable designs |
| Lead 关键 Being phased out in newer designs. | 10.00 | 40.00 | t | Moisture barrier sheath in subsea cable |
Indicative range compiled from published technology studies and chemistry; verify against a manufacturer specification before use. 标注为"微量"的行表示该物料含量极低，无法以质量形式有效表达——其制约因素在于纯度或供应商数量，而非吨位。
替代方案
替代是材料领域最被低估的力量。当某种金属价格高涨或在政治上难以获取时，工程师便会绕开它进行设计——整座矿山的需求可能因此消失殆尽。
Alkaline Electrolyser
The century-old design: steel, nickel and potassium hydroxide, with no precious metals at all.
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.