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CI-2009 EAc4:Green Power

Option 2 - RECs purchasing

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Juliana Malho
LEED consultancy manager
Athie Wohnrath
LEEDuser Basic Member
24 thumbs up

I´m trying to set how many RECs I must buy to comply with this credit for a project of 59,545sqf. According to Reference Guide I should multiply this area by 8kWh for 2 years (59,545 x 8 x 2), requiring a 952,735kWh purchase. Althought when filling LEED online template it cames as return a information as "Green Power per sf over a two year period" of 839.7kWh/sf. What does that mean? What calculations should we consider. I´m a lot confused. Thanks, Juliana Malho

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Mon, 03/19/2012 - 07:06

Juliana, Not sure if i have understood your query but i note that there must be a problem while you are filling the template. Annual green power requirement will be 59545 x 8kW/sqft/yr which is 476360kW/yr. You need to fill this value in the coloumn "annual green power purchased" and change the contract to 2years. The logical testing is "Green Power per sf over a two year period" should be 8kWh/sqft as this is the value which you have used initially for computing the Green Power to be purchased. Thanks Sriman

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