Table of Contents
CFL Electricity Calculations
Estimated Total Electricity Cost for CFLs and Fans ($0.12/kWh) = $27/month
This includes the cost of running the grow lights and fans.
Electricity Cost for CFLs: $16/month
Total hours: 558 light hours/month (CFLs are on 18 hours/day for 31 days)
CFL Wattage: Total of 244W for all CFLs
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $16.
HOURS x COST/HOUR =
558 x (0.12 x 0.244) = $16
Electricity Cost for Exhaust Fan: $6/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 68W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $6
HOURS x COST/HOUR =
744 x (0.12 x 0.068) = $6
Electricity Cost for 2 Clip-On Fans: $5/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 30W each x 2 = Total of 60W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $5.
HOURS x COST/HOUR =
744 x (0.12 x 0.060) = $5
Estimated Total Electricity Cost for CFLs and Fans = $59/month at $0.25/kWh
This includes the cost of running the grow lights and fans.
Electricity Cost for CFLs: $35/month
Total hours: 558 light hours/month (CFLs are on 18 hours/day for 31 days)
CFL Wattage: Total of 244W for all CFLs
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $35.
HOURS x COST/HOUR =
558 x (0.25 x 0.244) = $35
Electricity Cost for Exhaust Fan: $13/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 68W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $13.
HOURS x COST/HOUR =
744 x (0.25 x 0.068) = $13
Electricity Cost for 2 Clip-On Fans: $11/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 30W each x 2 = Total of 60W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $13.
HOURS x COST/HOUR =
744 x (0.25 x 0.060) = $11
Mini Tent with HLG 100 Electricity Calculations
Estimated Total Electricity Cost for HLG 100 and Fan ($0.12/kWh) = $10/month
This includes the cost of running the grow lights and fans.
Electricity Cost for HLG 100: $7/month
Total hours: 558 light hours/month (lights are on 18 hours/day for 31 days)
HLG 100 Wattage: Total of 100W
At $0.12/kWh (everyone is charged different rates, but this is the USA average)…
HOURS x COST/HOUR = Monthly Cost
558 x (0.12 x 0.100) = $7
Electricity Cost for Exhaust Fan: $3/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 29W
At $0.12/kWh (everyone is charged different rates, but this is the U.S. average).
HOURS x COST/HOUR = Monthly cost
744 x (0.12 x 0.029) = $3
Estimated Total Electricity Cost for HLG 100 and Fan = $20/month at $0.25/kWh
This includes the cost of running the grow lights and fans.
Electricity Cost for HLG 100: $14/month
Total hours: 558 light hours/month (lights are on 18 hours/day for 31 days)
HLG 100 Wattage: Total of 100W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities)…
HOURS x COST/HOUR = Monthly Cost
558 x (0.25 x 0.100) = $14
Electricity Cost for Exhaust Fan: $6/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 29W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities).
HOURS x COST/HOUR = Monthly cost
744 x (0.25 x 0.029) = $6
Starter LED Electricity Calculations
Estimated Total Electricity Cost for LEDs and Fans ($0.12/kWh) = $23/month
This includes the cost of running the grow lights and fans.
Electricity Cost for LED Grow Lights: $12/month
Total hours: 558 light hours/month (LEDs are on 18 lhours/day for 31 days)
LED Grow Light Wattage: Total of 185W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $12.
HOURS x COST/HOUR =
558 x (0.12 x 0.185) = $12
Electricity Cost for Exhaust Fan: $6/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 68W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $6.
HOURS x COST/HOUR =
744 x (0.12 x 0.068) = $6
Electricity Cost for 2 Clip-On Fans: $5/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 30W each x 2 = Total of 60W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $5.
HOURS x COST/HOUR =
744 x (0.12 x 0.060) = $5
Estimated Total Electricity Cost for LEDs and Fans ($0.25/kWh)= $49/month
This includes the cost of running the grow lights and fans.
Electricity Cost for LED Grow Lights: $25/month
Total hours: 558 light hours/month (LEDs are on 18 lhours/day for 31 days)
LED Grow Light Wattage: Total of 185W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $26.
HOURS x COST/HOUR =
558 x (0.25 x 0.185) = $26
Electricity Cost for Exhaust Fan: $13/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 68W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $13.
HOURS x COST/HOUR =
744 x (0.25 x 0.068) = $13
Electricity Cost for 2 Clip-On Fans: $11/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 30W each x 2 = Total of 60W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $13.
HOURS x COST/HOUR =
744 x (0.25 x 0.060) = $11
250W HPS Electricity Calculations
Estimated Total Electricity Cost for 250W Grow Light and Fans ($0.12/kWh) = $21/month
This includes the cost of running the grow lights and fans.
Electricity Cost for MH/HPS Grow Light: $17/month
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
MH/HPS Grow Light Wattage: Total of 250W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $17.
HOURS x COST/HOUR =
558 x (0.12 x 0.250) = $17
Electricity Cost for Exhaust Fan: $4/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 40W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $4.
HOURS x COST/HOUR =
744 x (0.12 x 0.040) = $4
Estimated Total Electricity Cost for 250W Grow Light and Fans ($0.25/kWh) = $43/month
This includes the cost of running the grow lights and fans.
Electricity Cost for MH/HPS Grow Light: $35/month
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
MH/HPS Grow Light Wattage: Total of 250W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $35.
HOURS x COST/HOUR =
558 x (0.25 x 0.250) = $35
Electricity Cost for Exhaust Fan: $8/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 40W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the exhaust fan is $8.
HOURS x COST/HOUR =
744 x (0.25 x 0.040) = $8
285W LED Electricity Calculations
Estimated Total Electricity Cost for 285W Grow Light and Fan ($0.12/kWh) = $23/month
This includes the cost of running the grow lights and fans.
Electricity Cost for LED Grow Light: $19/month
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
LED Grow Light Wattage: Total of 285W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $19.
HOURS x COST/HOUR =
558 x (0.12 x 0.285) = $19
Electricity Cost for Exhaust Fan: $4/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 40W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $4.
HOURS x COST/HOUR =
744 x (0.12 x 0.040) = $4
Estimated Total Electricity Cost for 285W Grow Light and Fan ($0.25/kWh) = $48/month
This includes the cost of running the grow lights and fans.
Electricity Cost for LED Grow Light: $40/month
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
LED Grow Light Wattage: Total of 285W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $40.
HOURS x COST/HOUR =
558 x (0.25 x 0.285) = $40
Electricity Cost for Exhaust Fan: $8/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 40W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is $8.
HOURS x COST/HOUR =
744 x (0.25 x 0.040) = $8
LEC Electricity Calculations
$0.12/kWh Electricity Cost – Estimated Total for 315W LEC Grow Light and Fans = $29/month
This includes the cost of running the grow lights and fans if your electricity costs $0.12/kWh (average cost of electricity in the US).
Electricity Cost for 315 LEC Grow Light: $22/month
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
LEC Grow Light Wattage: Total of 315W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is ~$21.
HOURS x COST/HOUR =
558 x (0.12 x 0.315) = $21.09
Electricity Cost for Exhaust Fan: $7/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 75W
At $0.12/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is ~$7.
HOURS x COST/HOUR =
744 x (0.12 x 0.075) = $6.70
$0.25/kWh Electricity Cost – Estimated Total for 315W LEC Grow Light and Fans = $58/month
This includes the cost of running the grow lights and fans if your electricity costs $0.25/kWh (the typical cost of electricity in big cities in the US)
Electricity Cost for LEC Grow Light: $44/month
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
LEC Grow Light Wattage: Total of 315W
At $0.25/kWh (everyone is charged different rates, but this is typical for big cities), the monthly cost of electricity for the light is ~$44.
HOURS x COST/HOUR =
558 x (0.25 x 0.315) = $43.94
Electricity Cost for Exhaust Fan: $14/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 75W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is ~$14.
HOURS x COST/HOUR =
744 x (0.25 x 0.075) = $13.95
400W HPS Electricity Calculations
Estimated Total Electricity Cost for 400W Grow Light and Fans = $96/month
This includes the cost of running the grow lights and fans.
Electricity Cost for MH/HPS Grow Light: $56/month
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
MH/HPS Grow Light Wattage: 400W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is…
HOURS x COST/HOUR =
558 x (0.25 x 0.400) = $56
Electricity Cost for Exhaust Fan: $23/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 120W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is…
HOURS x COST/HOUR =
744 x (0.25 x 0.120) = $23
Electricity Cost for 1 Clip-On Fan: $6/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 30W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is…
HOURS x COST/HOUR =
744 x (0.25 x 0.030) = $6
Electricity Cost for Oscillating Fan: $11/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 55W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is…
HOURS x COST/HOUR =
744 x (0.25 x 0.055) = $11
600W HPS Electricity Calculations
Estimated Total Electricity Cost for 600W Grow Light and Fans = $128/month
This includes the cost of running the grow lights and fans.
Electricity Cost for MH/HPS Grow Light: $84/month (based on $0.25/kWh)
Total hours: 558 light hours/month (grow lights are on 18 hours/day for 31 days)
MH/HPS Grow Light Wattage: 600W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is…
HOURS x COST/HOUR =
558 x (0.25 x 0.600) = $84
Electricity Cost for Exhaust Fan: $23/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 120W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is…
HOURS x COST/HOUR =
744 x (0.25 x 0.120) = $23
Electricity Cost for 2 Oscillating Fans: $21/month
Total hours: 744 fan hours (fan is on 24 hours/day for 31 days)
Exhaust Fan Wattage: 55W x 2 = 110W
At $0.25/kWh (everyone is charged different rates, but this is about average for cities), the monthly cost of electricity for the light is…
HOURS x COST/HOUR =
744 x (0.25 x 0.110) = $21
