3 ms·

Peak temperature lags peak solar by several hours, most energy intensive industries run 24/7, so the peak is caused often by home AC/heating which lags peak out

• crdoconnor 12y ago
  >Peak temperature lags peak solar by several hours, most energy intensive industries run 24/7 Energy intensive industries were only built that way because it matches the output profile of electric grids pre-renewables. You usually had a coal or nuclear power station that delivered the same amount of electricity 24/7. Energy intensive industries are already (in Germany at least) adapting to match their demand with the electricity spot price. There's nothing inherently that difficult about an aluminum smelter matching its highest production rates to when electricity is cheapest.
  • rlucas 12y ago
    That's not really true, especially as regards aluminum. The aluminum industry has some weird physical constraints. Alcoa has put out some engineering-heavy white papers on what actually happens and how the price and availability of power works in that industry. I can't find them at present but they were revelatory to me. In brief, you can't just arbitrarily turn up or down your aluminum operation. At some point the giant molten pots of aluminum freeze up and destroy your capital equipment.