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To: Brian Sullivan who wrote (2746)	9/26/2011 12:55:13 AM
From: Wharf Rat	Read Replies (1) \| Respond to of 85487

Carbon free? I don't think so. Figures are all over the ballpark, but CO2 is produced during construction, mining, processing and transporting fuel, decommissioning, etc. a 1993 study for the Swiss Department of Energy posits a life-cycle greenhouse impact for nuclear power of 39.1 grams of CO2 equivalent per kilowatt-hour. 149 Other studies of nuclear power range between 8 and 54 g/ kWh, 150 although it is not always obvious what each study considers. (The Swiss study excludes plant decommissioning and radioactive waste storage.) PV systems have much lower life-cycle emissions than combustion options, but are the highest of the noncombustion options, particularly those PV systems including a battery. repp.org nirs.org Thrilled? This does it.. REC Unveils PV Panel with One-Year Energy Payback Solar energy firm REC says it has developed a photovoltaic panel that, within one year, generates the same amount of energy used to create it. http://www.environmentalleader.com/2011/09/08/rec-unveils-pv-panel-with-one-year-energy-payback/