Getting to One gram pre watt

skunkd0c

Well-Known Member
Its funny when people say G/PW. In reality they only measure the watts consumed by the lights.

But there is a lot other equipment sucking electricity. Fans (exhaust and air circulating), a/c, water chilller, air/water pumps,water filters, dehumidifier and probably more.
G/PW is used as electricity cost measurement, which is very incorrect because a co2 tank is cost effective so is your nutes.
Not only that. The period from start to finish varies a lot.

Example:

Johnny veg his plant for 1 month, flower for 3 months under 400w HPS and yielded 380g.

Tom veg his plant for whole 3 months and flower for another 3 under his 400w HPS and yielded 620g.

Daniel on the other hand veg his plant for 2 months and flower for another 3 under 400w true LED with co2 tank and yielded 800g.

i liked this story, i want to know more about what Johnny Tom and Daniel are up to these days
 

oill

Well-Known Member
.
MYTH #1: Comparing grams harvested to watts of light used
is a good indication of an indoor garden's performance.

TRUTH: Just knowing the weight of a harvest and the size of the
lamp used is not enough information to make a useful comparison
and deem how successful a growth cycle was.
All else being equal, a 6 month old plant can generally outperform
a 3 month old plant if all that is compared is the size of the plant
to the size of the lamp, even if the lamp is less efficient once time is
taken into account. A much more useful way to calculate
your success is determining your grams per day. Take the weight
of a harvest and divide it with the number of days grown to find out
how much was produced each day.
Calculating the grams per day for each harvest will allow a
gardener to compare the success of different harvests, even if the
number of days in each cycle is different.

.
Grams per what hours??
 

oill

Well-Known Member
just woundering people's opinan on there top few things to achieving one gram per watt , I seem to have hit my ceiling last few grows at around 65-70% . That's without co2 , Would co2 be right for me My grow space is only 8x2 1/2x8 and it's not sealed I have air coming in and exiting , and my environment is pretty dailed in don't really want to redo it so just wounder peoples tricks of the trade that could help me in taking my yeilds to next level , thanx
Try og #18. That will get you close
 

Greenhouse;save

Well-Known Member
I try and pull a harvest (8 plants)every 4-6 weeks but for this I need 4 rooms 2 being a decent size 1room in constant flower and 1room being used for late veg and early flower........it's better when it's closer to 6 weeks between harvests because I don't have to hold my plants to long in flower in my 6+3(can get cramped)space and can get them into my 8+4 in pretty good shape(trust me it matters).....
 

jayjay777

Well-Known Member
The only true way to compare yeild to power is kWh for total grow.

For instance, I use nearly 2000 kWh month which is about $200.

For power, I only pay 15¢ per gram
 

jayjay777

Well-Known Member
Well I average about 1.5 oz day and use 65,000 watts???

All this being said, its about 1.5 per light or .75 gpw.
 
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Reporichter

Member
Right that's 65 1000 watt bulbs lol why does he need our help he needs a fucking power plant. That would b like more than one warehouse using more than one floor each huge building mistype or b.s.
 

Carolina Dream'n

Well-Known Member
Right that's 65 1000 watt bulbs lol why does he need our help he needs a fucking power plant. That would b like more than one warehouse using more than one floor each huge building mistype or b.s.
Definitely can do 65,000 watts on a single story warehouse with 400 amps service. Could get away with that many lights in a 2500 sq foot warehouse.
 

SweetHayz

Well-Known Member
Definitely can do 65,000 watts on a single story warehouse with 400 amps service. Could get away with that many lights in a 2500 sq foot warehouse.
A warehouse as a factory? Factory for what? Are you aware factory companies are inspected every while for safety reasons?
How many people need to be involved to keep that place running? Unless you live in somewhere where law covers you, I can see this myth busted. As well HE would not be averaging, because a single person can not run setup like this.
 

Carolina Dream'n

Well-Known Member
A warehouse as a factory? Factory for what? Are you aware factory companies are inspected every while for safety reasons?
How many people need to be involved to keep that place running? Unless you live in somewhere where law covers you, I can see this myth busted. As well HE would not be averaging, because a single person can not run setup like this.
I run a 48000 watt warehouse. No one inspects it because it's not a company. I run it 100% myself. A "warehouse" can be as simple as a metal building behind your house. Or as complex as a full wooden or concrete structure in commercially zoned property.
People talk out their ass about shit they don't know constantly on here. Kinda getting annoying.
Where's the forums for commercial growers that understand an can hold a real conversation?!?!?
 
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