3 ms·
Let me quote Ramez Naam here: Transmission costs money, but less than many believe. The cost of high voltage DC (HVDC) transmission lines is roughly 1 cents pe
by qoobaa 10y ago
Let me quote Ramez Naam here:
Transmission costs money, but less than many believe. The cost of high voltage DC (HVDC) transmission lines is roughly 1 cents per kwh for 500 miles, or 1.5 cents per kwh for 1,000 miles transmitted. Over 1,000 miles, an HVDC line may lose 5% or so of the electricity it transmits.
I don't consider 5% per 1000 miles an "absurd" amount.
- raverbashing 10y agoYes, losses are lower with a higher voltage (which for HVDC are around 100kV/1MV - in orders of magnitude) However doing it on terrain is much easier than doing it under the ocean
- mrfusion 10y agoWhy easier. You just drop it on the floor. You don't need land right s or towers to build.
- raverbashing 10y agoIsolating 100kV is not trivial That's why we need big towers When you can't use towers (on land) you have all kinds of special isolation techniques
- mrfusion 10y agoAnd couldn't we up the voltage even higher for vey long distances?