I've seen many discussions, brags and harvest posts about GPW. The problem with a straight GPW reference it doesn't take into consideration time, so it's hard to compare what's real or not. Some grows go for say 10 weeks whilst others might in fact be 4 months. However if we used Gram per Kilowatt Hour then that would be more a comparative analysis than the straight GPW model used. I realise it's a little more difficult to calculate but in reality not that difficult:
Just a thought!
- "Light KWH draw" x hours/day on (This for photo's would need Veg and Flower calcs)
- "Fans KWH draw" x hours/day on
- "Inlet/outlet exhaust draw" x hours/day on
- "Heater/cooler KWH draw" x hours/day on
- Add them up for total KWH consumed and divide into Harvest Total
- Light - 0.63KWH x 18hrs x 90 days = 1020.6KWH
- Light - 0.63KWH x 12hrs x 70 days = 529.2KWH
- Fans - 0.2KWH x 24hrs x 160 days = 768KWH
- Inlet/outlet exhaust draw - 0.35KWH x 24hrs x 160 days = 1344KWH
- Heater - 0.9KWH x 12hrs x 160 days = 1728KWH
- Total = 5389.8KWH Consumed
- Harvest example = 600grams
- GPKWH = 0.1113
Just a thought!