[Data-modeling] Wind farm properties and map

[Luke Schubert]

Hi Ed,

On Tue, May 12, 2009 at 4:44 AM, Ed Laurent <spatial.db at gmail.com> wrote:

> [...]
> @Luke: I did not know of http://carma.org/ . I wonder where they get their
> data? Their summaries aren't as interesting to me as the underlying data
> used to create them.
>
> [...]


>From "About CARMA" (http://carma.org/blog/about/):

"For several thousand power plants within the U.S., CARMA relies upon data
reported to the Environmental Protection Agency by the plant operators
themselves as required by the Clean Air Act. CARMA also includes many
official emissions reports for plants in Canada, the European Union, and
India. For non-reporting plants, CARMA estimates emissions using a
statistical model that has been fitted to data for thousands of reporting
plants in the U.S., Canada, the EU, and India. The model utilizes detailed
data on plant-level engineering and fuel specifications. CARMA reports
emissions for the year 2000, the current year, and the future (based on
published plans)."

>From "CARMA Version Tracker" (
http://carma.org/blog/about/carma-version-tracker/):
"Underlying plant and company data reflect the state of the global power
sector as of early 2008 (53,980 total existing and planned plants). Data
from the EPA Clean Air Markets division now supplements data from the EPA
eGRID program. New emissions and power data disclosed by the Indian Power
Ministry incorporated for year 2007. Small number of additional plant
matches made with disclosed European Environment Agency data. Changes made
to the CARMA estimation model to better predict power and emissions for
plants where multiple fuel types are employed. Fixed error that was causing
overestimation of capacity utilization in China. Plant geographic
coordinates in United States updated to reflect EPA Clean Air Markets
division data when possible. Estimated latitude and longitude extended to a
total of 36,380 plants. City radial data extended to a total of 208,569
cities, of which 98,327 are in the United States. Eliminated “parent” and
“operator” distinction for companies as it was causing confusion for some
users.

*Ongoing modifications for next release:* Matching and incorporating a large
amount of European plant data available through the European Union’s
Emissions Trading System. Improving accuracy of geographic coordinate
estimates. Addressing heat output from cogeneration facilities; omission
can result in inaccurate carbon intensities at present."
Cheers,

Luke.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freebase.com/pipermail/data-modeling/attachments/20090512/59f5de10/attachment.htm