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Grams-Per-Watt is an erroneous measure of productivity

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StealthyStalks

Efficiency always matters, no matter where you are growing.
I will give gpw sometimes if someone asks, but my own measure of productivity includes profit per year, without sacrificing quality.

Good luck with that.
I have seen "anyone" fail many times.
I have also been doing this long before I had my current "conditions."


You sound like you're taking offence for me using your grow room as an example; please don't. I think yours is one of the most efficient operations I've seen the short time I've been on here and I love the simplicity of your approach. I just used you as an example because your grow is quasi-legal and energy consumption is a very, very small part of the equation.

I have been growing for over 25 years so I guess saying "anyone can do it" comes from a skewed perspective. I do find that a lot of people literally love their plants to death, so maybe just not “everyone” can do it.
 
S

StealthyStalks

With electricity prices already high here and set to double within a few years , increasing efficiency and reduceing waste is fast becomeing a religion.

Grammes per watt says something general ,

Grammes per Kwh says more about the local climate in many cases and could be skewed by AC or dehumidifiers essential to that location ,

With a long running permanent floweroom the only usefull figure i could come up with is an overall Grammes per Kwh consumed per year.

0.57 grammes per Kwh consumed

Cost per gramme of bud £0.207 or about five pounds per ounce.

Only of personal interest but has gone up steadily over the years with better techniques and higher yielding genetics despite adding males and seed plants to the mix , and i like to put numbers on things


You are absolutely correct, even the geographical location would have to be taken into account because of the differing heating, cooling and humidity needs.
 
S

StealthyStalks

about right. I pull about 2016 to 2200 grams per harvest with/1600 watts. Thats in a Aero system. But I never veg~~~clones go straight into bloom and 45 to 60 days later. :smokeit:


That is truly amazing production! Not including the negligible amount of energy used for the clones, you are pulling in about 2 grams per kilowatt hour of lights!!! Very impressive!!!
 

antimatter

Active member
Veteran
It only costs me $25 to run a 1000w bulb for 12 hours/day for 30 days and $38 to run a 1000w for 18 hours/day for 30 days so it doesn't matter if I veg for 7 days or 8 weeks the cost is nothing compared to end product price, LBs per Bulb/GPW all the way could care less how much wattage im using to veg as long as its running perpetually.

If my electricity was very expensive and limited then I would go for efficiency in KW/hr used, but still measure my productivity by lbs per bulb/GPW
 
S

StealthyStalks

It only costs me $25 to run a 1000w bulb for 12 hours/day for 30 days and $38 to run a 1000w for 18 hours/day for 30 days so it doesn't matter if I veg for 7 days or 8 weeks the cost is nothing compared to end product price, LBs per Bulb/GPW all the way could care less how much wattage im using to veg as long as its running perpetually.

If my electricity was very expensive and limited then I would go for efficiency in KW/hr used, but still measure my productivity by lbs per bulb/GPW


:wallbash:

Dude, I am really sorry I even put this post up. Either the commenter’s don't get it or they are pricks when they express their opinions. What a waste of my time. I really thought this would be a cool place to meet like minded people; my mistake.

So to reiterate what I have ALREADY STATED MANY TIMES.

I only put this post up because of the erroneous grams-per-watt comparisons I kept seeing people use in this forum to show how productive their methods are. Grams-per-watt says nothing other than you got this much from this big of a light. It doesn't take into account the time factor.

So, IF someone wants to brag about how efficient their growing method is for a particular strain, then they need to use Grams-Per-Kilowatt Hour, which tells the whole picture, and not just Grams-Per-Watt, which tells me nothing other than the size light you used.

This isn't rocket science! :wallbash:
 

NotsoFla

Member
long thread short.

g/Kwh is more accurate, everything minus certain things

g/w is much much easier for lazy stoners.

something tells me this g/w thing will be here a while
 
S

StealthyStalks

long thread short.

g/Kwh is more accurate, everything minus certain things

g/w is much much easier for lazy stoners.

something tells me this g/w thing will be here a while


Thanks for cracking me up, dude. I am about ready to quit this site!
 
S

StealthyStalks

Pics or it didn't happen.


I guess it didn't happen then. You believe what you want to believe. I have been an outside gorilla grower for longer than you have probably been on this earth. I know I was one of the first people in my state to get my seeds from the original Seed Bank in the Netherlands back in the 80's because they just started advertising in High Times then and you actually got a catalog in the mail. So yes, I have been growing for over 25 years. I started out doing indoor ebb and flow in clay balls with great results (not sure if it was called Hydroton at the time) but realized I could pull in much more with less risk going outdoors with the proper strains. I even have my own strain that I have been growing for years derived from Durban Poison, Skunk#1 and Northern Lights#5 that is ready at my latitude by September 14.

Since I bought a new house I have decided to do indoor grows during the winter months, I came on this site to learn a little about all the new nutrients and such that are available for indoor hydro now and the methods used by others. I came to learn something, but so far all I have learned is there are a bunch of assholes on here. I did learn the feasibility of using coco in ebb and flow from your post though, so I guess it has been somewhat worth my time.

If you want pics I’ll be glad to email you with them when I am up and running the ebb and flow and give you a blow by blow of my growing progress so you’ll know I’m no neophyte; I do have a couple of decades under my belt, so I think I know a thing or two. All I can give you at the moment is a picture of the room, light and air handling equipment. I ditched the bubble buckets I started using because of the noise the air pumps caused; I need to keep things stealthy because I don’t live in a state like yours and I don’t need anyone knowing what I am doing. I am waiting for the clone mother at the moment.
 

MeanBean

Member
Stealthy: Glad your sticking around, this concept is a great piece of info! Not sure why people are so agressive towards it. Buut that usually means they know your right and are trying to convince themslefs your not... Sorry your at the butt of this at the moment!!
 

blackone

Active member
Veteran
g/kWh of course - with everything factored in.
Yes people in hot climates will have a harder time reaching the same g/kWh because of AC electricity usage but that's simply a manifestation of the truth - that the southern grower has to spend more electricity to get the same yield. In this case it doesn't say anything about the grower's capabilities vs the northern grower of course.

I mostly use g/W myself to measure a grow because I rarely veg a lot under the big lights so using g/W (or simply harvest weight because my light never changes) to compare 2 grows is almost as good as g/kWh because of the similar conditions.
 

antimatter

Active member
Veteran
:wallbash:

Dude, I am really sorry I even put this post up. Either the commenter’s don't get it or they are pricks when they express their opinions. What a waste of my time. I really thought this would be a cool place to meet like minded people; my mistake.

So to reiterate what I have ALREADY STATED MANY TIMES.

I only put this post up because of the erroneous grams-per-watt comparisons I kept seeing people use in this forum to show how productive their methods are. Grams-per-watt says nothing other than you got this much from this big of a light. It doesn't take into account the time factor.

So, IF someone wants to brag about how efficient their growing method is for a particular strain, then they need to use Grams-Per-Kilowatt Hour, which tells the whole picture, and not just Grams-Per-Watt, which tells me nothing other than the size light you used.

This isn't rocket science! :wallbash:

Im a little confused what did I say that was hostile towards your thread? electricity is very cheap where I live and I have no problem with running a veg room, its my personal opinion that having 1-2 large plants per 1000w that yield equivalent or more to SOG is alot better from a legal standpoint then running a no veg efficient SOG, big plants are funner to grow.
 

antimatter

Active member
Veteran
If your running 8x1000w you gotta have a veg room with at least 2x1000w lights for vegging while your flowering, now for me to run 2x1000w lights to veg for 8 weeks it is only gonna cost me $152 and if those 8 lights are producing anywhere from 8-16 lbs of AAA bud 5-6x a year whats the point of looking at $152 ?

So sure I could run 10 lights and not have a veg room but whats the point in doing that my plant numbers would be so high that if the grow ever went down it would be like swimming in shit.
 
D

dongle69

I have been an outside gorilla grower for longer than you have probably been on this earth.
I'm over 40. :whistling:
How long you have been growing doesn't matter anyway, unless you are measuring Grams-Per-Kilowatt Hour-Per year of age.;)
I see people make the same mistakes year after year.
My measurement is still via net profit without compromise of quality.
Not many people can make a quarter million dollar profit off of a space smaller than a garage.
Make sure you figure in your time, rent/mortgage, nutrients used, etc.


 

antimatter

Active member
Veteran
Not everyone is in your situation bub..

My situation is great but I also have some of the lowest commercial prices in all of Canada so having low electricity prices isn't really a huge advantage, if your down in the US and paying 4x as much for electricity as me chances are you also are getting paid 2x what im getting paid for my bud and having lower plant numbers is an even greater advantage in case of getting busted.

If your legal with no limit on plant numbers be my guest and run a no veg Sea of Green with hundreds of plants.
 

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