"mayacama" - 1 õppematerjal

New energy sources

Fifth level Prediction Cost to consumer Now: 1550c 2050: 7c Role in global power supply Now: <0.01% 2050: >15% Geothermal energy How it works? average 1km ­ 35o C Pipes would go down up to 6 km Heated water > heats organic substance >steam >starts turbines Where can be applied? Where heated layers are nearer to surface Where can be seen? Largest ­ north from San Fransisco in Mayacama mountains Disadvantages Looking for suitable sites is expensive, dangerous Prediction Cost to consumer Now: 320c Future: >5c Role in global power supply Now: 0.3% 2050: >2% Spacebased solar power How it works? Solar sail focuses light onto a collector >microwaves to earth Where could be applied? 36 000 km from Earth's surface Disadvantages Logistical nightmare Energy loss Click to edit Master text styles Second level