basic grams per watts

Kushash said:

As said above by SPLFreak808 1000w hid lamps are not a good choice for a new grower even if there was room for them.

1000w HID plus interest in how many grams per watt can I get from a new grower sounds like a train wreck headed for the Plant Problem Section.

The good news is the pics won't be purple.

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Kushash is correct. You shoukd be worrying about much more basic things.

Too many hatefull growers and industries, dont allow the rest to do what they want

Saboo the Shaman said:

Exactly, and most modern growers aren't aware of that.

It doesn't have to be toxic, though. It would just be nice to have a way to objectively compare efficiency, and a ratio of KWH to harvest amount would do so, no?

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Kingrow1 said:

Too many hatefull growers and industries, dont allow the rest to do what they want

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There's nobody stopping me from doing what I want.

Saboo the Shaman said:

There's nobody stopping me from doing what I want.

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Hey i dont let anyone stop me either but many struggle to dry bud and that really fucked up the system too. Peeps with wetter boveda style early jarring, it all just made gpw complicated except for a few who understood better

ravak said:

I'm going to be buying 2 HPS 1000w lights soon and I'm using them to grow 4 plants, how much yield would there be?
I'm new to this so I'm trying to learn as much as i can before i start, thanks.

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Man there are so many variables like strain, temp, air flow, what soil you use and the nutes, the ph and ppm, pulse just you being in the garden maintaining the plants with topping, LST, HST, defoliation.
So I wouldn't even start guessing how much you would get with grams/watts untill you've done a grow or two

ravak said:

I'm going to be buying 2 HPS 1000w lights soon and I'm using them to grow 4 plants, how much yield would there be?
I'm new to this so I'm trying to learn as much as i can before i start, thanks.

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5 pound atleast, roughly 1 gpw and thats an ok grow, 2 gpw, 3 gpw, if you got the greenthumb

I had right about 1gpw on my first grow, growing one plant. I’m only on my second grow now, have more plants this time and yes half the veg. And I’ll give everything a fair shot, but I really don’t know if I like the idea of the more plants/less veg/smaller buds type of growing. I also just really like the way a tent looks filled with one plant.

And unless we are talking the same strain and growing medium, I don’t care to compare numbers with anybody else, pointless. Might show they have more money to buy expensive equipment, doesn’t mean crap about growing skills

I stopped comparing when everyone had 5gpw and i had a lot less

GPW is more of a large scale clone growers thing. Growing small plant numbers from seed in a tent is hit or miss.
You are working with a small plant count, and unknown phenos. Its more of a balance of your space, how much stretch, flower time etc.
Out of 12 reg seeds, i usually keep 2 that are growing similar after showing sex, then flip to flower and see what happens.
Got .5 gpw last time, hoping next is better.

Trying to cram 2000w into a 4x8 is definitely pretty hardcore. There's going to be a limit to how many grams per square foot you can fit in there that's going to bottleneck you at some point as well. Your plants need canopy space to absorb more light. You can't just dump an unlimited number of watts into a plant and get it to produce more. It'll just bleach out instead. And man is 2000w gonna get hot. Cool tubes will probably not be optional. My first grow was in a 4x4 with a 400w HPS and the adjoining room got pretty toasty. One of the big reasons that people choose LED over HPS is that heat is electricity that didn't get turned into light, and LED's waste a lot less electricity on heat than HPS bulbs do. Not to mention that there are only certain colors of light that the plants can use (PAR) and LED's produce only those colors while HPS/MH produce just one broad spectrum.

Also, if noise is any concern to you, remember these exhaust fans get loud but also getting a bigger exhaust fan and using a speed controller to turn it down can move the same amount of air with less noise.

It's never good to count yields ahead of time. Focus on the job at hand, growing. Failure to prevent catastrophes like pests or mold/mildew can ruin a crop. Then you get the square root of jack shit lol.

ravak said:

I'm going to be buying 2 HPS 1000w lights soon and I'm using them to grow 4 plants, how much yield would there be?
I'm new to this so I'm trying to learn as much as i can before i start, thanks.

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Depends on strain, many breeders and seedbanks share their g/m2 numbers.

I run straight hps for veg and flower ....my room is larger but I am using 8x8 of it now and heres me lighting

1000w ....400w...400w...400w...150w

I would consider a few things before buying two 1000s ....will you more than likely be upgrading from the closest space after this grow ?

If not I would run 3 pc 400w spaced equally with at least 500cfm exhaust and a fan blowing length wise under lamps ...

But if you plan to upgrade your room to a bigger size then I would consider buying more lights instead of the 2nd 1000w ....maybe 1000w and 2 400s or 3 pc 600w that way when you upgrade you can cover more area ...

Just a thought but good luck with your grow !

Saboo the Shaman said:

I've always thought the 'gram per watt' measuring stick was useless without other parameters like time taken into account.

If one plant grows 1000 grams with one month veg and a second grows 4000 grams with 6 months veg under the same 1000w light, which is making more efficient use of the electricity? The first was 1gram/watt, while the second was 4 grams/watt. It should be kwh/kg or some such.

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Your half right!

Craigson said:

Sea of Green crushes everything for efficiency as far as I know.

4x8 bed w12clones.
2wks in cloner
2wks veg
10wks flower
2x600 watt HPS
= 4.3lbs = 1.6gpw

Just dialing in notil bed still. Going to add CO2 next. Maybe supplemental side lighting. Hoping to hit 2gpw.

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Your getting there! Read the following..

I say the GPW thing is really useless.

Look at it this way.
Growing method is the real key. SOG kills gpw!

Taking different light strengths and different size grow area's, including different growing styles.
You can produce as much as 4.35 grams per watt. This was done in a 2x2 ebb. It ran 4 inch Rockwool cubes and had 35 plants in it.
High yield strain and each yielded an average of 32 gr. 250 watt HID, plants flipped at 8 inch's.

Now up to a 4x4 and 64 plants in soil and 1 gallon pots (Plant Warrior pots)
600w HID
Same flip size, same yield average.
3.4 gpw

Grams per watt is basically meaningless...

Yes sir's! It took several dial in's to do this.....It can be done.

You should see what a rotating garden can do!

Dr. Who said:

You can produce as much as 4.35 grams per watt. This was done in a 2x2 ebb. It ran 4 inch Rockwool cubes and had 35 plants in it.
High yield strain and each yielded an average of 32 gr. 250 watt HID, plants flipped at 8 inch's.

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Now I am seriously impressed. I really want to see some pics of that run please. And other than SoG, what factors do you believe were most responsible for hitting that level? What strain was that BTW? Details my friend because I want to replicate those results, or even close.

A agree that GPW is useless as a metric. Just changing from HPS to LED causes the numbers to be apples and oranges.

Something along the grams per square meter per year. I would even say that veg area should be counted if separate. Now that's a metric that would allow grows to be compared regardless of style, strain, lighting, veg time and such. Then one could factor in the cost to produce the grams.

Dr. Who said:

Your half right!




Your getting there! Read the following..

I say the GPW thing is really useless.

Look at it this way.
Growing method is the real key. SOG kills gpw!

Taking different light strengths and different size grow area's, including different growing styles.
You can produce as much as 4.35 grams per watt. This was done in a 2x2 ebb. It ran 4 inch Rockwool cubes and had 35 plants in it.
High yield strain and each yielded an average of 32 gr. 250 watt HID, plants flipped at 8 inch's.

Now up to a 4x4 and 64 plants in soil and 1 gallon pots (Plant Warrior pots)
600w HID
Same flip size, same yield average.
3.4 gpw

Grams per watt is basically meaningless...

Yes sir's! It took several dial in's to do this.....It can be done.

You should see what a rotating garden can do!

Click to expand...

OMFUCKINGG not this shit again.....and even more ridicules this time

Renfro said:

Now I am seriously impressed. I really want to see some pics of that run please. And other than SoG, what factors do you believe were most responsible for hitting that level? What strain was that BTW? Details my friend because I want to replicate those results, or even close.
[/Q

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tell me you don't believe this shit right???? renfro??? renfro???

Dr. Who said:

Your half right!




Your getting there! Read the following..

I say the GPW thing is really useless.

Look at it this way.
Growing method is the real key. SOG kills gpw!

Taking different light strengths and different size grow area's, including different growing styles.
You can produce as much as 4.35 grams per watt. This was done in a 2x2 ebb. It ran 4 inch Rockwool cubes and had 35 plants in it.
High yield strain and each yielded an average of 32 gr. 250 watt HID, plants flipped at 8 inch's.

Now up to a 4x4 and 64 plants in soil and 1 gallon pots (Plant Warrior pots)
600w HID
Same flip size, same yield average.
3.4 gpw

Grams per watt is basically meaningless...

Yes sir's! It took several dial in's to do this.....It can be done.

You should see what a rotating garden can do!

Click to expand...

2.4 pounds in a 2x2 with a 250 hps? I find this hard to believe.

Grams per kilowatt hour is a better way to think about it. And to keep it real pumps, timers hvac. Should be factored in, but that’s only if you care about who’s dick is bigger. Reality is women are happy with some dicks. It’s how you use them