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|Energy Market and Economic Impacts of H.R. 2454, the American Clean Energy and Security Act of 2009                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
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|Addendum: Household Cost Impacts of the American Clean Energy and Security Act (H.R.  2454)
                     In the Energy Information Administration’s (EIA) analysis  of H.R. 2454, several metrics were used to illustrate the impact on household  costs.  These included cumulative  changes, percentage changes and annual changes over time, both discounted and  undiscounted.  However, the costs per  household reported in Figures 34 and 35 in the report, represent simple  averages of cumulative discounted costs.   In other words, the annual consumption changes per household reported (both  undiscounted and discounted) were calculated as the sum of changes divided by  the number of years.  While this is  appropriate when examining the average undiscounted costs, calculating the  average annual discounted costs requires the calculation of a constant annual  payment that would yield the same discounted cumulative costs over the period  examined.  The table below presents the  annual averages of consumption per household over the 2012 to 2030 period for the  main cases in the report, using both the simple annual averages and the properly  calculated annualized values.
                     Average Yearly Change in Consumption per Household from 2012 to 2030(2007 Dollars)Case
                         Undiscounted
                         Present Value @ 4%, Cumulative Changes divided by number of years
                         Annualized ValueACESA Basic
                         -$122
                         -$83
                         -$120ACESA No International
                         -$109
                         -$76
                         -$109ACESA High Cost
                         -$190
                         -$124
                         -$179ACESA Zero Bank
                         -$95
                         -$59
                         -$85ACESA High Offset
                         -$137
                         -$89
                         -$129ACESA No Int/Limited
                         -$435
                         -$292
                         -$422
|Average Yearly Change in Consumption per Household from 2012 to 2030(2007 Dollars)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|Case                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|ACESA Basic                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|ACESA No International                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|ACESA High Cost                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|ACESA Zero Bank                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|ACESA High Offset                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|ACESA No Int/Limited