Wind power facts and figures
This thread is strictly facts only to establish the cost-effectiveness of the Irish energy wind programme in displacing conventional fossil fuel plant and reducing CO2 emissions.
All data must be backed by a reputable source (IEEE, SEAI, Eirgrid etc etc) - not from an industrial lobby site or a newspaper clip.
No posting of opinions from blog sites or youtube clips
No mention of pumped storage & interconnectors.
No mention of nuclear.
No mention of future tidal/wave energy.
The actual figures for wind power from the CSO (Table: Fuels Used in Electricity Production (ktoe) by Fuel Type and Year) show it increased its share in the fuel mix for Electricity Generation from 0.43% to 4.03% between 2000 and 2008.
During this time the installed wind capacity increased from 125MW to 1264MW.
Acoording to SEAI (SEAI - Financing Wind Farms
So between 2000 and 2008 approximately EUR1.8bn to EUR2.2bn has been spent on wind power to achieve a 3.6% increase in the fuel mix for electricity generation.Ballpark figures for wind farm development would be in the region of 1.6 to 2m
From SEAI SEAI - Energy in Ireland Key Statistics booklet
From 1990 to 2000 when there was a miniscule amount of wind power on the grid the overall CO2 intensity of electricity generation fell from 896 to 771gCO2/kWh a reduction of 13.95%
From 2000 to 2008 the overall CO2 intensity of electricity generation fell from 771 to 581gCO2/kWh a reduction of a 24%.
We know from the same report that Natural Gas increased from 27.3% to 54.7% (1990-2008) of the primary fuel mix for electricity generation.
We also know from the IEA (IEA - CO2 Emissions from Fuel Combustion: Highlights) that carbon emissions from Natural Gas in electricity and heat generation in Ireland decreased from 499 to 413 gCO2/kWh from 1990 to 2007 - a decrease of 17.23%
According to SEAI
In light of the above figures above is it reasonable to state that investing in higher efficiency gas plants is a far more cost effective means of reducing CO2 emissions rather than installing wind power? How much of the % carbon reduction from 2000 to 2008 is attributable to wind power ?The reason for the increase in efficiency and the decrease in CO2 emissions is the result of higher efficiency natural gas plants and the increase in production from renewable sources. The closure of old peat fired stations has also contributed in recent years.