Methane (CH4) (about 85% of natural gas) is 105 times worse than CO2 as a greenhouse gas (GHG) on a 20 year time frame and taking aerosol impacts into account. Methane leaks (3.3% in the US based on the latest US EPA data and as high as 7.9% for methane from “fracking” coal seams). Using this information one can determine that gas burning for electricity can be much dirtier than coal burning greenhouse gas-wise (GHG-wise). While gas burning for power generates twice as much electrical energy per tonne of CO2 produced (MWh/tonne CO2) than coal burning and the health-adverse pollution from gas burning is lower than for coal burning, gas leakage in the system actually means that gas burning for powercan be worse GHG-wise than coal burning.
This site is dedicated to informing the public that natural gas is not clean energy.
Unfortunately pro-gas politicians and gas producers variously add to the popular misconceptions that “gas is clean energy ” or “gas is cleaner energy than coal”. While pricing any bad item (e.g. coal burning, smoking, drinking) is useful the devil is in the detail as to any desired Carbon Price and Carbon Tax as a market-based GHG pollution mitigation mechanism. Thus the Australian Government has made it clear that a significant intent of its proposed Carbon Tax is to promote a coal to gas transition. However, as set out below, a coal to gas transition will be disastrous, involving huge national investments to achieve an increase in GHG pollution.
The current global Gas Boom, Gas Rush and Gasland perversion is enabled by corporate greed, lobbying and the falsehoods that “gas is clean” or that “gas is cleaner than coal”. Methane (CH4) is a major greenhouse gas (GHG) that on a 100 year time scale has a relative global warming potential (GWP) that is 25 times that of carbon dioxide (CO2). However a...
Wind turbines 'less efficient than claimed'
Wind turbines are 25 per cent less effective than the renewable energy industry claims, according to research.
The John Muir Trust (JMT), one of Scotland's leading conservation bodies, has challenged the common assertion that wind farms run at an average of 30 per cent capacity over a year.
A study carried out for the Trust into the energy generated by dozens of wind farms, the majority of which are in Scotland, between November 2009 and last month, found they actually ran at 22 per cent of capacity.
Campaigners insist the figures, drawn from data provided by the National Grid, challenge the role of wind farms as an efficient source of renewable energy.
They said hundreds of wind farms had secured planning permission across Scotland based on inaccurate assumptions of their output.
"This analysis shows that over the course of a year, the average load factor fell well short of what the industry claims, yet the 30 per cent figure is peddled at every public inquiry into a proposed wind farm," said Helen McDade, head of policy at the JMT. "This data is needed to counter that hype."