Resource Documents by Wheatley, Joseph
CO₂ Emissions Savings from Wind Power in the National Electricity Market
This report examines the contribution of wind power to CO₂-e emissions reduction in the NEM in 2014. Using a generation dataset at 5-minute intervals, CO₂-e emissions time-series are estimated for each of 151 thermal generators, giving total emissions from fossil fuel plant of 169.7MtCO₂-e. The best empirical estimate is that wind power avoided 6.2MtCO₂-e, a reduction in total emissions of 3.5%. Wind power contributed 4.5% of system demand and therefore the emissions displacement effectiveness of wind power was 3.5%/4.5% or . . . Complete article »
Quantifying CO₂ savings from wind power: Ireland
Abstract. The contribution of wind power generation to operational CO₂ savings is investigated for the Irish electricity grid. Wind contributed 17% of electricity demand in 2011 and reduced CO₂ emissions by 9%. Wind energy saved 0.28 tCO₂/MWh on average, relative to a grid carbon intensity in the absence of wind of 0.53 tCO₂/MWh. Emissions savings are at the lower end of expectations. It is likely that this reflects decreasing effectiveness of wind power as wind penetration increases. Download original document: . . . Complete article »
Emissions savings from wind power
Recently, economist Colm McCarthy noted that: Wind generators can be relied on to produce power only about one hour in three over a year, and those productive hours are unpredictable. So conventional capacity has to be kept in reserve for the periods when the wind does not blow. These stations will be utilised less than optimally and this is a hidden cost of wind generation. In addition to inefficient use of capital, critics have argued that wind generation has a . . . Complete article »
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