# 57 - Index GrowFAQ How do I accurately measure my Grow Room...

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Index: GrowFAQ : How do I accurately measure my Grow Room Efficiency? Added by: administrator Last edited by: administrator Viewed: 882 times Rated by 9 users: 9.40/10 GARDEN EFFICIENCY RATING - Online Calculator or How much juice you burn to grow a gram. . Standard methods of reporting garden yields are imprecise and don't take the factor of time into account. This is a summary after discussion on a new standard formula for reporting yields and efficiency. The GE Rating is based on the amount of kilowatt hours used to produce one gram. This factors in how long your strains flower and the resulting number makes it simple to compare 4000 watt gardens with 400 watt gardens. The calculations are easy, here is an example: 2000 watt flowering area 60 days of flowering 12 hours on light cycle total yield: 49.5 ounces 1) Divide the total wattage of your lamps by 1000 to determine the kilowatts per hour: 2000 / 1000 = 2 kw/h 2) Multiply the previous result by the hours of the light cycle (usually 12):

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## This note was uploaded on 09/17/2009 for the course BIO 328 taught by Professor Roux during the Spring '08 term at University of Texas.

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57 - Index GrowFAQ How do I accurately measure my Grow Room...

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