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Concentration of CO2 in the Atmosphere

October 7 Green Energy News

Science and Technology:

  • The price of solar photovoltaic cells has dropped 99% in the past quarter century. So in an increasing number of markets around the country, solar is at or very close to grid parity. The Graph of the Day shows a decline in the price per watt from $76.67 to $0.72 since 1977, a 99% plunge to grid parity. [RenewEconomy]
  • Designed to capture ocean currents, Safrema Energy’s Nexus turbine can be placed into a river without having to build a dam, giving the Nexus a much smaller environmental impact. Safrema Energy claims that the Nexus can produce power at 2.6 cents per kWh, with no subsidies. []
  • The growth of wind power, if undertaken with reasonable care, should pose no risk to any particular bird species in Canada, according to a new peer-reviewed study. The study also suggests that highly publicized bird mortality figures out of the U.S. and Europe could be on the high side. [EarthTechling]


  • More than 10 million tonnes of carbon dioxide were displaced by Scotland’s renewable industry in 2012 – a new record and a jump of 24% on the previous year. This is the equivalent of removing 99.1% of carbon emissions generated from every car, bus, lorry and train journey in Scotland. [Energy Live News]
  • Two separate solar PV projects, totaling 36 MW and 20 MW, have been approved in the UK with construction set to begin immediately. The UK’s department of energy also revealed the country installed 707 MW in the first half of 2013. [pv magazine]


  • The solar array on Lancaster, Massachusetts’ old landfill site is turning sunshine into revenue for the town after the switch was turned on last month. The $2 million project will be generating enough power to pay for the town’s municipal electric bill, and then some. [Worcester Telegram]
  • The NRC is being asked to restrict storage of highly radioactive nuclear waste in spent fuel pools like the one at the Vermont Yankee nuclear plant. Two authors of a 2003 report on packed fuel pools urged that fuel older than five years be stored in dry concrete casks. A third author was Allison Macfarlane. [Rutland Herald]




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