nogod_
Well-Known Member
Your 1080w lamp drops 605 par watts on your canopy.
My 1080w lamp drops 680 par watts on my canopy.
You're hoping to get 1.6gpw. How much more herb do you think I'm going to going to get from my +75 par watts?
I don't know where you live. Going rate here is $6-7/g. It's also .19/kwh.
How long do you think it's going to take me to make up that $800?
My 1080w lamp drops 680 par watts on my canopy.
You're hoping to get 1.6gpw. How much more herb do you think I'm going to going to get from my +75 par watts?
I don't know where you live. Going rate here is $6-7/g. It's also .19/kwh.
How long do you think it's going to take me to make up that $800?
In direct electrical consumption costs? Forever! In terms of a yield increase, that's dicier, because you won't get 7% more yield, at best you'd move one bar up the PPfd chart, a very small incremental increase. For twice the money in chips it just doesn't seem worth it, even when considering years for amortization.
This becomes a more immediate concern when dealing with the heat. Lower HVAC operating costs are where most of the power savings will actually come from.
Which leads me right back to a question I asked last night; how does one calculate performance changes due to chip temperature?
Just for grins, what would happen in terms of efficiency if we could run a chip super soft AND keep it really cool, like 70°f or even cooler?