Highest gram per watt known?

ANC

ANC

Well-Known Member
That is true hey, with this last little outdoor cheese plant there was no weighing and it was good.
Most unproductive I have been in a long time.
 
Kingrow1

Kingrow1

Well-Known Member
ANC said:
I'd like to see something like gram/Watt divided by the total number of weeks from clone or seed, multiplied by 100.

SO if you got 1g/w in 1 week the score is 100.
1g/10 weeks = 10
1g/12 weeks = 8.33
0.5g/12 weeks =4.17
0.5g/15 weeks =3.33
2g/20weeks = 10

This gives us a relatable quantum for both time and energy efficiency.
Anything approaching ten is next level growing.
Click to expand...
Close, grams per watt per time taken is the only measure used. When we factor in time we get a scale of productivity.

Really this only works for those growers who take the same amount of time per grow such as one month veg eight weeks flower.

This is how grams per watt works and anyone else is wrong. It is also the most productive way to grow for yeild and anyone not doing this has way too much time and weed on their hands or sold out their plant count to legality (which dosent equal equality).

If your doing a long veg and flower forget grams per watt, us quuick small growers outyeild you over the space of a year with all else being equal.

Grams per watt is just a base mathematical formula based on everyones own business model and expectations, like if i had an orange grove and i wanted to work out gross profit over a year...
 
ANC

ANC

Well-Known Member
Sure but now we need to start adding in Watts of airconditioning and fans too.

Ultimately what we want to know is how much time and money it took to grow x amount of weed.
 
Kingrow1

Kingrow1

Well-Known Member
ANC said:
Sure but now we need to start adding in Watts of airconditioning and fans too.

Ultimately what we want to know is how much time and money it took to grow x amount of weed.
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No, the cost of running your grow comes off the profit coloum in your books. This is a costings formulation, thus if we want to know the cost per gram we could use this number.

The final net profit depends on how much you pay for electricity and what you run but it isnt to be confused with productivity of each grow tent and grower skill :-)
 
Helmut79

Helmut79

Well-Known Member
Dr. Who said:
Isn't that really 1.484 gpw?

3.56 x 16 = 56.96 zips
56.96 x 28 = 1594.88 grams
1594.88 / 1075 av. watts = 1.4836 gpw (1.484 gpw)

Just say'in
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Yup, something went wrong with the conversion. I'm an european guy used with metric units.. so 1.60g per watt is correct though, which is 1.72kg or 3.79lb per light. Sry about that.
 
Helmut79

Helmut79

Well-Known Member
ANC said:
I'd like to see something like gram/Watt divided by the total number of weeks from clone or seed, multiplied by 100.

SO if you got 1g/w in 1 week the score is 100.
1g/10 weeks = 10
1g/12 weeks = 8.33
0.5g/12 weeks =4.17
0.5g/15 weeks =3.33
2g/20weeks = 10

This gives us a relatable quantum for both time and energy efficiency.
Anything approaching ten is next level growing.
Click to expand...
4 weeks vegging (counting from the point when clones got transplanted into coco)
10 weeks flowering (most of mass was picked at 9 weeks, but trimming took 3 weeks).
Could say a total of 14 weeks then?
1.6g/w divided by 14 weeks = 0.114 which multiplied by 100 is 11.4


I'm a next level grower then :D
 
Helmut79

Helmut79

Well-Known Member
ANC said:
Are you controlling all parameters, humidity, temp, CO2 and lights perfectly?
Are you creating plants with good roots that can feed properly without burning easily?
If your answer to all these questions is yes, then you should be approaching the maximum for the pheno you are running.
If you have these dialed in, the biggest factor determining yield is light. X amount of molls = x amount of grams of dried product (as long as you fill the whole footprint of the light with canopy 2 feet deep, you are maxing it)

How long did you flower for?
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Definitely did not manage to control all parameters perfectly. Actually I made few big mistakes. The biggest one was when the whole crop got so tight with first few weeks of flowering that air didn't get through, so under the crop (roots) was like 13C (55F) and on the crop was 33C (91F) at lights on. Crazy difference which stunted the growth for like 1-2 weeks imo. Didn't feel right at all until I threw away all 12 little piece of shit oscillating fans and installed 4 big ones instead with 6000m3/h capacity each.. pointed slightly at the ceiling to all different directions from the center. This evened up the temp quite well and since that moment temp was ideal - between 28 and 33 with 1100ppm of co2. I'm amazed I still got so big yield. Like a miracle.

I had a very deep and tight crop, I think it was exactly about 2 feet, but it was a hell to trim all those small nuggets from the bottom. I'd never want to deal with this again, but then it makes me wonder what if the light gets through to the floor? Sounds like a waste which might lower the yield. A contradictions. I believe somewhere is the sweet spot. Got to experiment with it :)
 
Dr. Who

Dr. Who

Well-Known Member
nxsov180db said:
I agree that GPW isn't the only thing that should be looked at but I do believe it is a good baseline to determine how good of a yield any given strain is capable of putting out and also growing skill of being able to pull decent weight. I actually go more by how much yield I get per square footage more so than gpw but I do calculate gpw every so often out of curiosity of how good my cob's are growing.
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The problem I have with that.
Variables!

A strain will yield no more then it's genetic potential.

How many here are reaching strain potentials?
Consistently?
Environmental variation. Unless you hold tight control of your grow. Less chance of potentials!
Feeding variation. How are you measuring the amounts given? Ever slip?
Then you have the watering variations (goes hand in hand with feeding). How many days between? How often does that change by environmental conditions?

See where I'm going here?

It could be a measure of your consistency!
And yet, what about pheno variations in that?
Even clones will environmental shift.

Variables man, variables!

It took 3 runs in that Ebb tray to hit close to potentials....
1-2 was dial in, and 3 was the adjusted goal run.
 
Helmut79

Helmut79

Well-Known Member
Dr. Who said:
I hate this - stupid GPW thing!

It's a measure of nothing!

You want to know how to blow the roof off of GPW?

SOG!

You better be able to do high # plant counts!

I'll give you a cpl of examples.

Both of these were run with Greenthumbs G13

5x5 tent with 64 plants in Plant Warrior #1 pots. (this is basically a 4x4 space of plants)
600w HID lighting
32 g average. per plant at harvest.
3.413 GPW!

One big mass of buds - Hydro method
2X2 Ebb table with 4" Rockwool cubes as the media.
250w HID lighting
Same 32 g harvest average.
3.968 GPW!

The Ebb table took a cpl of tries to get there per strain dial in.

The whole Idea of GPW being a measure of anything but personal satisfaction. Is stupid!

Could this be geared up to serious levels of production?

Sure thing! In fact, it's been done in Canada. Ever hear of that underground grow up in the mountains of BC?
What was it? 20 shipping containers (or maybe they were train cars) buried and run by an above ground generator? Fuel was trucked in.

That whole thing was SOG in soil, in table's (raised bed growing). Automated system too.

Story goes that the Canadian law enforcement knew of it and turned their backs on it. Till the US DEA bitched up a storm and they went in and pulled the plants. Took out the lights, cut the lines but, left the whole thing there other then the lights.... Generator, left over fuel, all of it but the lights and the lines (feed and electrical) being cut.
It's still there as far as I know.......I bet the RCMP keeps an eye on it though..

No one was ever charged for it either! If you went up and grabbed the remaining equipment. Bet you would be charged.....

It was in a documentary too (after the raid). If I remember right.....Anybody remember the name of that film?
Click to expand...
So as I understand, 3-4 grams per watt is doable with SOG method. Fucking inspiring :)
I guess another few essential compounds would be:
1) Co2
2) light movers
3) good reflectors with good digital ballasts
4) good reflective sheets on the walls
5) accurate temp and rh controlling (understanding VPD charts)
6) high yielding pheno
7) plastic net to hold the weight of flowers (lol)
8) optimistic view at life
 
Dr. Who

Dr. Who

Well-Known Member
Helmut79 said:
So as I understand, 3-4 grams per watt is doable with SOG method. Fucking inspiring :)
I guess another few essential compounds would be:
1) Co2
2) light movers
3) good reflectors with good digital ballasts
4) good reflective sheets on the walls
5) accurate temp and rh controlling (understanding VPD charts)
6) high yielding pheno
7) plastic net to hold the weight of flowers (lol)
8) optimistic view at life
Click to expand...
That was done with NO gassing.
No light movers
Simple Bat wing
cheap mylar draped down the sides (This is a steel caged unit, that I built to do hydro dial-ins with. It has a res below and a simple pump on a timer. 6 ft tall with the tray held in a section with 4 ft of frame above the tray level. Everything lighting, was suspended from the top...
Temps and Rh was fairly lose.
No netting - Plants were 12-14 inch's

Always!
 
ANC

ANC

Well-Known Member
Helmut79 said:
5) accurate temp and rh controlling (understanding VPD charts)
Click to expand...
The Dimlux ballasts can be run by a VPD controller that can take various sensors like leaf and air temp, CO2 etc, it even dims the ballast if nothing else helps.
 
bazoomer

bazoomer

Well-Known Member
Is it just me or does Helmut look like Freddy Mercury? His fucking Mug is everywhere! . Every time I come on RIU, (& I cum on it quite regularly!) all I see is Freddy all over the shop !
 
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