ENV100H1 Lecture Notes - Lecture 54: Hydrogen Economy, Hydrogen Fuel, Chemical Reaction

• School: UTSG
• Department: School of Environment
• Course: ENV100H1
• Professor: Barbara Murck

Document Summary

Traditional geothermal near plate boundaries or active volcanoes. Heated water or steam to generate electricity. Patterns of geothermal activity shift naturally: area that produces hot groundwater now may not always do so. New source: terrestrial heat flow for heating and electricity. Ground source heat pumps: heat from ground to buildings. Provides less than 0. 5% of energy worldwide. Can be among the cheapest electricity to generate. Water can contain salts and minerals that corrode equipment and pollute the air. Limited to areas where energy can be utilized. Tidal energy: tides rise and fall twice each day, moving large amounts of water. Tidal range: best in long, thin bays like fundy. Best for harnessing tidal energy by erecting dams outlets of tidal basins. Motion of waves harnessed, converted into electricity. Energy might be harnessed from current like gulf stream. Tropical oceans absorb solar radiation a lot. Surface warmer than deep water: ocean thermal energy conversion otec.