jeff February « 2009 « Open Source Coal
Datafinders: Coal Production Power Plants Coal Prices

Archive for February, 2009

VA Power Plant Coal Consumption Question

Saturday, February 14th, 2009

Q: In 1996, the Virginia General Assembly passed a law providing tax credits to Virginia utilities for using coal mined in Virginia. In 2006, that law was renewed and expanded to provide a $3 per ton credit. Is there evidence that this law has increased consumption of Virginia coal by powerplants in the state? Is there evidence that it has increased coal production in Virginia?

Using the tools on Open Source Coal, it’s easy to see that the tax credit appears to have expanded the consumption of Virginia Coal by power plants in the state. In the graph below, note the dramatic increases in both 1996 and 2006:


Click image to view an interactive chart, or click here to see how the query was performed using the Power Plant Datafinder on Open Source Coal.

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Employment and Production Question

Saturday, February 14th, 2009

Q: How many jobs are associated with mountaintop removal mining in Appalachia? How has that number changed in recent decades relative to how much coal is produced in the region?

As discussed in the post on Bank of America, restricting a query to Central Appalachian strip mining production provides an excellent approximation of mountaintop removal coal production (the same is true for employment).

A column chart (rather than a pie chart, table, etc.) should be selected as the view option. This is true of any query that seeks to view change across time. Additionally, the query should be sorted by a time unit, in this case, by year.

Here is a sample graphic of Central Appalachian strip mine employment generated using the Open Source Coal database and graphing tools:


Click image to view an interactive chart, or click here to see how the query was performed using the Coal Production Datafinder on Open Source Coal.

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Coal Price Fluctuations Question

Saturday, February 14th, 2009

Q: Utilities across the Southeast and Mid-Atlantic have successfully argued to state utilities commissions that coal represents the most affordable fuel choice with a record of price stability. Has the price of coal increased or decreased in recent years? How have price fluctuations compared with those of other energy sources?

So far, we have been able to provide weekly spot market price estimates, courtesy of the Energy Information Administration, for 5 different coal regions between July of 2000 up to within the last few weeks. We will soon be adding the capability to adjust for inflation, but currently these prices are not adjusted. Here’s an example of how prices have varied over the past 8 years for Central Appalachian coal:


Click image to view an interactive chart, or click here to see how the query was performed using the Coal Price Datafinder on Open Source Coal.

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