The CSIRO has released a report through the Australian Coal Industry’s Research Program (ACARP) on the measurement procedures of greenhouse gas emissions from underground coal mining, finding that steps need to be taken to improve emissions measurements.
“Coal miners are going to have to tighten up their measurement procedures so they can comply with the new greenhouse reporting act,” CSIRO researcher and co-author of the report Stuart Day told AUSTRALIAN MINING.
With the introduction of the National Greenhouse and Energy Reporting Act 2007, underground coal mines are now required to report their annual fugitive greenhouse emissions to the Department of Climate Change.
The report was designed to determine whether the prescribed methods of fugitive emissions reporting were compatible with the methods that are already in place at individual mine sites.
“The new methods have a lot of other details that are currently not in place in the mines,” Day said.
This means that any emissions mines report using the current methodology will be subject to uncertainties, he said.
According to Day, the potential uncertainties of measurements could have financial ramifications for the mines.
“If coal miners are emitting 100,000 tonnes, because of the uncertainty they may have to pay for 120,000 tonnes,” he said.
“It’s worth a mine’s while to improve the accuracy of their measurements.”
The report also found that more work needs to be done to improve the reliability and accuracy of continuous flow measurements to reduce the uncertainty of fugitive emissions estimates.
“That’s going to require some work to tighten up those measurements,” Day said.
“We’ve put in a proposal to ACARP for a larger project to try and work out exactly what’s required to get that uncertainty down as low as possible.”
CSIRO Energy Technology
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