High voltage transmission cables: power parameters?
…these sub-conductors is a 750mm2 and 2.5 tons/km cable of 40-80 aluminium sub-wires. The total mass of the power lines is about 200 tons per km (i.e., about 50% lower…
Electrical conductivity: energy transition materials?
…copper demand trebling in the energy transition. Aluminium is c50% more resistive than copper, but it is also 70% lighter and stronger, which explains why it is used in overhead…
IMO 2020. Fast Resolution or Slow Resolution?
…an aluminium oxide framework. This is industry-standard technology, available to all. However, highly branched molecules are harder. One class, dibenzothiophenes, is pictured below. Their structure impedes the sulphur “heteroatom” from…
Solar: energy payback and embedded energy?
…solar panel is about 65% glass, 15% aluminium, c10% polymers (mainly EVA encapsulants and PVF back-sheet), c3% copper. Photovoltaic silicon is only 5% of the panel by mass, but about…
Hydrofluoric acid: the economics?
…It is used to make fluorinated polymers, as feature in solar, batteries, wind and power cables. It is used to make cryolite, for aluminium refining, as is necessary for long-distance…