In a Wednesday, Sept. 1, 2010, notice in the Federal Register, the EPA shared some of the math work the agency used to build its new Clean Air Interstate Rule. The newly released data is meant to supplement the information provided with the release of the agency's proposed transport rule in 75 FR 45210. The info-dump follows a similar release on Monday that set out the science behind allowance pools for Delaware and D.C (read that F.R. notice here: http://edocket.access.gpo.gov/2010/2010-21547.htm)

Additions include an updated version of the power sector modeling platform that the EPA proposes to use to support the final rule. This new power sector modeling platform consists of updated unit level input data from the National Electric Energy Data System, and a set of model run results with the updated modeling platform (Integrated Planning Model v4.10), detailed documentation of the updated version of the model, and user guides to input assumptions and model outputs. The additional information also includes a list of further planned updates to support the final rulemaking.

SOURCE: Federal Register notice: http://edocket.access.gpo.gov/2010/2010-21699.htm