Greenhouse Electrical Cost Calculator
Calculate monthly electrical utility bills ($) for grow lights, ventilation exhaust fans, circulator fans, and water pumps based on kWh power rates.
Power Audit & Utility Bills: The Greenhouse Electrical Cost Calculator
Operating supplemental grow lights, ventilation exhaust fans, horizontal airflow (HAF) fans, irrigation pumps, and environmental automation systems consumes significant electrical power. The greenhouse electrical cost calculator (searched as greenhouse grow light power bill calculator, greenhouse electricity expense calculator, or greenhouse power consumption calculator) estimates daily, monthly, and annual utility bills based on regional $/kWh utility rates.
Equipment Wattage to Kilowatt-Hour (kWh) Equations
Electric utilities bill customers based on Kilowatt-Hours ($kWh$) consumed ($1 kWh = 1,000 Watts$ running for 1 hour):
Daily Kilowatt-Hours (kWh) = (Total Equipment Watts × Daily Operating Hours) / 1,000
Monthly Cost ($) = Total Daily kWh × Regional Electric Rate ($/kWh) × 30 Days
Common Greenhouse Electrical Loads:
- Supplemental Grow Lights: Four 600W LED fixtures ($2,400 Watts$) operating 14 hours daily consume $33.6 kWh/day$. At $0.14/kWh$, lighting costs $4.70/day$ or $141/month$.
- Exhaust Ventilation Fans: One 1/2 HP exhaust fan motor (~450 Watts) running 10 hours daily consumes $4.5 kWh/day$ ($0.63/day$).
- HAF Air Circulation Fans: Two 100W HAF fans running 24/7 consume $4.8 kWh/day$ ($0.67/day$).