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Public power systems have reduced carbon dioxide emissions 2.4 percent since 2001, despite a 9.4 percent increase in powergeneration, according to a recent analysis by Target Rock Advisors. The analysis focused on trends in emissions by 193 public powersystems, including municipal, state and federal poweragencies, in the ten years from December 2001. The studymeasured the change in total tons of emissions and rates ofproduction in three key emissions categories: carbon dioxide,nitrogen oxides and sulfur dioxide. CO2 emissions fell 13.3 million tons to 541.9 million tons in 2011,down from 555.2 million tons in 2001, Target Rock said. Publicpower systems also improved CO2 emissions intensity rates by 3.7percent, to a net generation weighted average of 132.2 pounds permillion BTUs in 2011. The carbon emissions reduction trend accelerated in the fiveyears between December 2006 and December 2011. Public power systemscut emissions by 36.8 million tons, or 6.4 percent, over thefive-year period. CO2 intensity rates improved 1.2 percent duringthe same period. The reduction in carbon emissions was largely due to a shift awayfrom coal to cleaner fuels, said Target Rock Advisors. Over the10-year time period analyzed in the study, coal-fired netgeneration fell 10 percent to 56.1 percent of total generation in2011. Natural gas power rose 63.1 percent to 13.8 percent of thetotal generation. Public power made significant percentage increases in renewableenergy generation, particularly hydro and wind, said TargetRock Advisors. Renewables now account for 12.6 percent of netpublic power system generation, which is up 36 percent from 2001.Virtually of all of the added renewable generation came from hydro. Over the 10-year period, nitrogen oxide fell 57.8 percent from 1.3billion pounds and sulfur dioxide emissions decreased 55.6 percentfrom 4.1 billion pounds. Nox and So2 emissions intensity –the rate at which emissions are produced through the generation ofelectricity – fell 59.3 percent and 57.1 percent,respectively. The study didn't cover investor-owned utilities and merchantgenerators. However, Target Rock Advisors recently released aquarterly update of 10 sustainability and environmental, social andgovernance indices launched in February . The latest update to the main sustainability index , which focuses exclusively on investor-owned utilities in the US,gave Sempra, Xcel Energy PG&E, Edison International andAvista the highest sustainability rankings. We are high quality suppliers, our products such as Pico Mini Projector , Window Based Tablet PC for oversee buyer. To know more, please visits Quad Band Android Phone.
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