Whether you put an amount on it or not there are so many factors that go into calculating GPW and efficienty that I doubt anyone can say for sure what their GPW is.
Is it weighed after or before trimming/drying, are the buds bone dry or still moist, do you flower a sativa strain for 100days versus an indica for 55 days, etc....
1 GPW is possible in any medium with a commercial strain and an optimized setup with Co2 and at least a 600W with an appropriate amount of space.
3 GPW is possible but it takes a hydro setup (bio-buckets would be my choice), a commercial strain your familiar with, minimum of 1000W if lighting with reflective material galore, environmental controls, the proper footprint for the light,and most important daily prayerr to the grow gods and THC fairies.
Is it weighed after or before trimming/drying, are the buds bone dry or still moist, do you flower a sativa strain for 100days versus an indica for 55 days, etc....
1 GPW is possible in any medium with a commercial strain and an optimized setup with Co2 and at least a 600W with an appropriate amount of space.
3 GPW is possible but it takes a hydro setup (bio-buckets would be my choice), a commercial strain your familiar with, minimum of 1000W if lighting with reflective material galore, environmental controls, the proper footprint for the light,and most important daily prayerr to the grow gods and THC fairies.