- Количество слайдов: 15
Electricity in your Home. Where does it come from? How much does it cost? How much do you use?
Mining coal n Coal is mined at open cut or underground mines, then crushed, washed and transported to power stations to be stockpiled and used as fuel.
Burning Coal, Oil, Gas, Biomass, Splitting an atom, Geothermal, Falling Water, Wind. n Most electricity is generated by spinning a turbine. The turbine is connected to a generator. Coal, oil, gas, biomass can be burned to boil water to make steam which turns the turbine.
Turbine Generator Magnets Rotating Fan Blades Rotating Coil of Wire
How does it get to your House?
Cost of Electricity Met-Ed. 4. 588 cents/kwhr n Green Mountain 7. 39 or 7. 56 cents/kwhr n
Monthly Generation & Transmission Bill If You Use: q 500 k. Wh 1000 k. Wh 2000 k. Wh Green Mt. $40. 90 $77. 85 $151. 75 n Met Ed $22. 94 $45. 88 $ 91. 76 n
How much do we use? n PA residents use 12% more electricity than NJ and 20% more than NY residents. n PA average consumption of 753 kwh/month. US average is 866 kwh/month.
How does the US compare to the rest of the world? n The US has 6% of the world’s population, but uses 30% of the worlds energy. n India has 20% of world’s population but uses only 2% of the world’s energy.