"198689" - 1 õppematerjal

New energy sources

Fourth level Fifth level 1 Prediction Cost to consumer Now: 1825 c Future: 5 c Role in global power supply Now: <0.1% 2050: up to 25% Solar updraft tower How it works Heated air rises through giant towers > starts turbines Now Spain Manzanares 198689 Namibia 1,5 km "Green tower" Disadvantages Enormous building costs. Requires large areas, but can be used as greenhouses Solar updraft tower Click to edit Master text styles Second level Third level Fourth level Fifth level Spain, Manzanares Click to edit Master text styles