Compressor Upgrades/Replacements. The forecast revenue requirement for 2018 and 2019 does not include any capital expenditures or O&M or other expenses by Westcoast on account of any compressor upgrades/replacements in Zone 3 or 4, except for forecast capital expenditures associated with the Reliability and Maintainability Program, as set out in section 3.9. Any capital expenditures or O&M or other expenses incurred by Westcoast in 2018 or 2019 on account of any other compressor upgrades/replacements in Zone 3 or 4 will be treated on a flow‐through basis and the revenue requirement impact associated with any difference between the forecast and actual expenditures incurred by Westcoast in 2018 and 2019 on account of any such compressor updates/replacements, and any revenue requirement impact of any difference between the forecast and actual timing of such expenditures and in‐service date of any such compressor replacement/upgrade, will be recorded in the Compressor Upgrade/Replacement Deferral Account for amortization in 2019 and 2020, respectively.
Compressor Upgrades/Replacements. The forecast revenue requirement for 2011, 2012 and 2013 does not include any capital expenditures or O&M or other expenses by Westcoast on account of any compressor upgrades/replacements in Zone 3 or 4, other than the replacement of one of the LM 1500 units (Unit 1) at Compressor Station N4 on the Fort Xxxxxx Mainline that is part of the 2011 T-North Expansion Project. Any capital expenditures or O&M or other expenses incurred by Westcoast in 2011, 2012 or 2013 on account of any compressor upgrades/replacements in Zone 3 or 4 will be treated on a flow-through basis and the revenue requirement impact associated with any difference between the forecast and actual expenditures incurred by Westcoast in 2011, 2012 and 2013 on account of any such compressor updates/replacements, and any revenue requirement impact of any difference between the forecast and actual timing of such expenditures and in-service date of any such compressor replacement/upgrade, will be recorded in the Compressor Upgrade/Replacement Deferral Account for amortization in 2012, 2013 and 2014, respectively.
