Why is g/W used as the benchmark?

Don't care what you think. I have 2 people that helped dry trim, weigh and jar it up. They left with two 1/2 gallon ball jars each and huge smiles. I'm still about 4oz over the legal limit. I may not believe it either if I read it online. I figured all autos for about 4zips max, each, with luck.

BTW, never top an auto, you could end up with only 6.5oz dry. (Don't try this at home kids, I think it boils down to timing but need more testing)

You got 3.5 oz off two plants using a 400W HPS and two COB.

There is no way you got 2 g/W using six COB's.

Shoot, a decade ago people were selling LED light fixtures saying they would replace a 600W HPS.

I laughed then.. I'm laughing now.

BLNT

What you believe doesn't change facts.

BTW, you got 2 things wrong and another only half right in your opening sentence. If you want to use my 1st grow as some kind of measurement, get the facts correct first. 4 plants. Weights is way off. 1 of the 4 plants was partially under COB for about 3 weeks because she was slow.
The COB was added over the auto Cheese and a Panama Lime as a a final attempt with Kind soil as I seriously f'd up using it the first time. Panama Lime died from the soil still being too hot, cheese loved it. I started the Amnesia in coco and added COB #2 with 1 week to go on my final plant from the 1st grow. Would you like details on the mistakes I made with training and the medium that stunted 2 of my plants on the 1st grow? Maybe when I added lights or topped the auto cheese?
Or, do you know all that too?
I'm still smoking that 1st grow and have enough herb for a year now.

Anyway, good luck with your g/W and keep laughing.

overgrow.com had the best grams per watt per hour calculator

Creature1969 said:

What you believe doesn't change facts.

Click to expand...

Let me be very clear here, either you are lying now or you were lying when you wrote it in your own grow journal.

You also wrote that grow was the first one in 25 years, the last post was sometime spring of this year and it is only July.

Do you actually think I'm going to believe you were able to grow two grams per watt under LED after you botched your first grow in 25 years?

You destroyed your own credibility.

lol. You need to lay off the pipe. Better reading comprehension may help a bit there too.

Already told you I don't care what you think. Pics were posted of this harvest.

BTW, just because YOU can't improve or correct mistakes from one day to the next, doesn't mean no one can. Stick to what you think you know.

Lmao. Whatever. Reading comprehension obviously isn't you're strong suit.

Pics were posted of this harvest. I have nothing to prove to you. Couldn't give a shit what you think you know. Keep struggling with g/w.

You showed your ignorance. I'm done.

On your first grow in 25 years you managed 3.5 oz from two plants using a 400W HPS/MH and two COB's.

That is less than 0.25 grams per watt, that is to be expected from a new grower.

Your second run with 330W of COB was better, but you still only managed 0.5 grams per watt.

No one with a brain will listen to you.

You have no credibility.

Grams per watt isn't useless. It is certainly imperfect. It is driving towards a metric that is valuable to anyone who is concerned with cost.

Grams per watt probably is most valuable for commercial growers as it is their highest reoccurring monthly cost. For the rest of us something like monthly yield/monthly cost makes more sense.

For me my monthly cost should contain my increase in power bill (which includes fans and everything), my nutes, bulbs, carbon filters, medium, water... Etc.

If I wanted to get real serious I could think about how many grows I'll get before my fan will need to be replaced or other costly equipment.

My yield isn't every month, but in my perpetual setup it's every two and could be divided in half to get my monthly yield.

Most people who are simply using grams per watt are ignoring veg watts, ac, dehumidifiers, fans and on and on and on.

On of the biggest cost no one considers is sqft. Your house isn't free. A less energy efficient setup that utilizes more space may actually be more efficient. Of course if you're a home grower you probably consider the space in your closet "free".

GrowyMcGrowFace said:

Grams per watt isn't useless. It is certainly imperfect. It is driving towards a metric that is valuable to anyone who is concerned with cost.

Grams per watt probably is most valuable for commercial growers as it is their highest reoccurring monthly cost. For the rest of us something like monthly yield/monthly cost makes more sense.

For me my monthly cost should contain my increase in power bill (which includes fans and everything), my nutes, bulbs, carbon filters, medium, water... Etc.

If I wanted to get real serious I could think about how many grows I'll get before my fan will need to be replaced or other costly equipment.

My yield isn't every month, but in my perpetual setup it's every two and could be divided in half to get my monthly yield.

Most people who are simply using grams per watt are ignoring veg watts, ac, dehumidifiers, fans and on and on and on.

On of the biggest cost no one considers is sqft. Your house isn't free. A less energy efficient setup that utilizes more space may actually be more efficient. Of course if you're a home grower you probably consider the space in your closet "free".

Click to expand...

Great points. Seems to me that it's possible to throw a hell of a lot of money at a grow for a small increase in g/w.

You can over complicate things if you want, but as electronic equipment wears its efficiency does as well which will make it look like your are doing worse over time as opposed bettering your growing.

Keep.It.Simple.Stupid

Using your lighting source as the yardstick will give you a better representation of the efficiency.

You can calculate and test everything else, which I can see commercial growers doing. That way they can see monthly operational costs to build a budget.

If you're growing to get rich then calculating every last thing would be advantageous.

If you're growing for yourself it would be a waste of time.

Yet, it would be easy!

Let's say, home growers will use on average 1kW every hour for 24 hours for 30 days on a billing cycle. At worst, $0.10 per kW, so we multiply by 24 & 30 and we get $72, if you know how many cycles you can use your nutes then divide by that number and add it in.

But hey, who has time to do all of that when we have all this bud to burn? Leave that up to the tycoons that don't smoke.

Enigma said:

You can over complicate things if you want, but as electronic equipment wears its efficiency does as well which will make it look like your are doing worse over time as opposed bettering your growing.

Keep.It.Simple.Stupid

Using your lighting source as the yardstick will give you a better representation of the efficiency.

You can calculate and test everything else, which I can see commercial growers doing. That way they can see monthly operational costs to build a budget.

If you're growing to get rich then calculating every last thing would be advantageous.

If you're growing for yourself it would be a waste of time.

Yet, it would be easy!

Let's say, home growers will use on average 1kW every hour for 24 hours for 30 days on a billing cycle. At worst, $0.10 per kW, so we multiply by 24 & 30 and we get $72, if you know how many cycles you can use your nutes then divide by that number and add it in.

But hey, who has time to do all of that when we have all this bud to burn? Leave that up to the tycoons that don't smoke.

Click to expand...

I agree that you can make it as complicated or as easy as you want. There is a saying that goes something like "All models are wrong, some are useful".

I think gpw is wrong and can be useful (just like the formula I proposed).

The obvious hole in something like gpw is time. Vegging longer or getting a higher yield with a longer flower period haven't necessarily made you more efficient.

It could be useful to keep track of these cost. If you live in a legal state prices are plummeting. Maybe it won't be worth it for you to grow at some price per oz. Or maybe it always will and you just enjoy doing it.

While the price is as high as it is maybe efficiency doesn't matter at all. For commercial growers being inefficient but having a higher overall yield is probably better financially.

amyg88 said:

Great points. Seems to me that it's possible to throw a hell of a lot of money at a grow for a small increase in g/w.

Click to expand...

Ahem... COBs

GrowyMcGrowFace said:

I agree that you can make it as complicated or as easy as you want. There is a saying that goes something like "All models are wrong, some are useful".

I think gpw is wrong and can be useful (just like the formula I proposed).

The obvious hole in something like gpw is time. Vegging longer or getting a higher yield with a longer flower period haven't necessarily made you more efficient.

It could be useful to keep track of these cost. If you live in a legal state prices are plummeting. Maybe it won't be worth it for you to grow at some price per oz. Or maybe it always will and you just enjoy doing it.

While the price is as high as it is maybe efficiency doesn't matter at all. For commercial growers being inefficient but having a higher overall yield is probably better financially.

Click to expand...

People growing for profit will be concerned about every last Watt being consumed.

Everyone else uses grams per watt to gauge their growing skill.

For example, a 400W HID is capable of a pound. If you are doing less than this then there is something that needs to be changed in your setup.

LED are still relatively new, by that I mean the latest and greatest, we all know how little the 1W/3W/5W emitters produce, yet they still grow great bud because of the spectrum.

So far, I've seen LED produce less than 0.25 grams per Watt up to 0.5 grams per Watt. The startup cost is greater but the longevity is better. The only problem is, as new tech comes out your light will be replaced and to keep up you'll have to rebuild.

I really want an LED setup, I just can't make sense of it given the restraints.

The advertising hasn't changed in a decade either, they are still claiming to be able to replace a HID of double the Wattage and for some reason they NEVER market the lights at thier true Wattage.

The other thing to realize, not only are homegrowers not growing for profit but they usually don't have more than a veg/clone box and a flower box. In reality, they will produce more at home for less than they can buy it anywhere.

Once you get into a warehouse commercial grow then you'll need to worry about total power consumption.

Leave all of that for the commercial tycoons, we, as homegrowers, don't need a business model or a budget. We will be saving money with a properly built setup no matter what.

Sure, like I said I think gpw can be useful. I am by no means a commercial growers and am concerned about cost. I do realize that I'm likely in the minority as well.