ECOL 1000 1nd Edition Lecture 18 Outline of Last Lecture I. HydropowerII. Impoundment plantsIII. Run-of-River plantsIV. Three Gorges DamV. Advantages and Disadvantages of HydropowerVI. Solar ImpulseOutline of Current Lecture II. Solar PowerIII. Geothermal EnergyIV. Ocean EnergyCurrent Lecture- Concentrating the sun’s energyo Concentrated solar power systems focus sunlight onto water pipes, producing steam that is used to turn generator turbineso Solar race cars race in Australia along World Solar Challenge route from Darwin to Adelaide Solar panels on the surface of the car The first solar car race was the Tour de Sol in 1985o Solar Advantages Free and renewable No emissions Roof installations/ space 20,000 jobs now and increasing 35% per yearo Solar Disadvantages High start up costs Costs of electricity Daylight requirements Geographical limitations Hazardous materials used in contruction- Geothermalo Heat energy generated and stored in EarthThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.o Energy not originating from the Suno Advantages Reliable and inexpensive Pollution free Ground source heat pumps GSHP use 30-70% less energy than conventional methodso Disadvantages Ecosystem disturbance (Yellowstone National Park) Replenishment rates of ground heat High start up costs Geographic limitations (California, Nevada, Hawaii, and Utah)- Ocean Energyo Energy from waveso Tidal barrage Each day the barrage turbines spin and generate electricity as water moves in and out of the bayo Tidal Turbine Tidal turbine on the coast of Northern Ireland will generate 1.2 megawatts of renewable energyo Advantages Renewable and pollution free Low cost of production Ocean thermal energy conversiono Disadvantages Ecosystem disturbance (highly productive marine ecosystems) Tidal barrage systems need high tide amplitude Geographic
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