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Solar Energy- P hotovoltaic C ells

Learn about photovoltaic cells, their manufacturing process, energy pay-back time, greenhouse gas emissions, and heavy metal emissions. Explore the advantages and disadvantages of solar energy, and how it can help reduce utility bills and greenhouse gas emissions. Discover the environmental impact of solar panels and the transportation and manufacturing aspects.

julie-rich
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Solar Energy- P hotovoltaic C ells

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  1. Solar Energy- Photovoltaic Cells Amelia Romero

  2. PV Cells can replace… Where does the water go? – Thermal Pollution?? Transportation Mining- The trains andboats deliverthe coal to thepower plant.  The coal isburned to heatwater to makesteam.       Coal is dug upand sent ontrains andboats.   Improvements could bring the costdown from $1.90 to $2.10 per watt to $1.65 per watt. Indirect emissions of coal other fossil fuels used to generate the electricity for PV manufacturing facilities.

  3. It takes power to make powerManufacturing a photovoltaic • The energy balance of a PV system is expressed by the Energy Pay-Back Time (EPBT), which is the time it takes for the PV system to generate the amount of energy equal to that used in its production. • EPBT varies according to site

  4. EPBT of a PV system varies between 1-6 years Greenhouse gas emissions in PV life-cycle CO2 Heavy metal emissions in PV life-cycle Heavy metals are emitted directly during the manufacturing process – Cadmium Round-mounted installations in the U.S., subjected to an insolation of 1,800 kW/yr, EPBT was calculated to be only 1.1 years

  5. Advantages Disadvantages Cost location (climate and clouds) Dependent on the sun. Space (batteries and solar panels) Disposal Transportation of the parts Manufacturing • Lower your utility bills • quiet, reliable, fossil-fuel free • avoids greenhouse gas emissions • can operate for many years with little maintenance or intervention after their initial set-up • locally available renewable resource.

  6. Works Cited • http://www.gosolarinarizona.com/solar/photovoltaic(PV)solar/what-is-a-solar-power-system.asp • http://www.solardirect.com/pv/pvlist/pvlist.htm • http://www.solarenergy-solarpower.com/disadvantages-of-solar-panels.html • http://www.cetonline.org/Renewables/PV_pro_con.php • http://www.scientificamerican.com/article.cfm?id=engineering-silicon-solar-cells • http://www.scientificamerican.com/article.cfm?id=solar-cells-prove-cleaner-way-to-produce-power • http://www.leonardo-energy.org/emissions-photovoltaic-manufacturing

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