How Much Does It Cost to Grow Cannabis at Home in Arizona?
Arizona electricity runs 14.2¢/kWh — we factor that into every calculation below. Spoiler: growing beats buying for most home growers.
Electricity rate
14.2¢/kWh
Around national average, hot summers mean more AC demand
Plant limit
12 plants
per household
Dispensary price
$220/oz
avg. retail
Home-grow cost
~$25/oz
all in, all tiers
Three Tiers of Home Grow Cost in Arizona
Budget (2x2)
2x2 tent · 4 oz/harvest
First-year savings
$2,768
vs $3,520 at dispensary
Standard (2x4)
2x4 tent · 10 oz/harvest
First-year savings
$7,547
vs $8,800 at dispensary
Premium (4x4)
4x4 tent · 20 oz/harvest
First-year savings
$15,495
vs $17,600 at dispensary
What's Different About Growing in Arizona?
Around national average, hot summers mean more AC demand. Your electricity cost is a baseline driver — higher than average states like California and New York mean a few hundred dollars more per year in power costs. Offsetting factors: Arizona's dispensary prices (averaging $220/oz) determine how fast your grow pays for itself.
Proposition 207 (Smart and Safe Arizona Act) allows up to 12 plants per household, which sets an upper limit on how much you can legally grow. Most home growers run fewer plants but bigger — 4 plants in a SCROG yields more than 8 plants crowded together.
Our assumptions (click to expand)
• Electricity: Arizona residential average of 14.2¢/kWh (EIA data)
• Light runs 18/6 in veg, 12/12 in flower — averaged to 15 hours/day
• 30% power overhead added for fans, accessories
• 4 harvests/year (perpetual setup) with autoflowers or photoperiods rotating
• Yield estimates are median — experienced growers hit the high end, first-timers the low end
• Nutrients, seeds, and consumables estimated at $200/year (more if you buy premium seeds)
• Dispensary price: $220/oz average retail in Arizona
• First-year savings assume you use or value everything you grow. Your mileage will vary.
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