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Oregon cost analysis

How Much Does It Cost to Grow Cannabis at Home in Oregon?

Oregon electricity runs 11.4¢/kWh — we factor that into every calculation below. Spoiler: growing beats buying for most home growers.

Electricity rate

11.4¢/kWh

Very low — hydro power keeps rates down

Plant limit

4 plants

per household

Dispensary price

$150/oz

avg. retail

Home-grow cost

~$25/oz

all in, all tiers

Three Tiers of Home Grow Cost in Oregon

Budget (2x2)

2x2 tent · 4 oz/harvest

Startup equipment$400
Annual electricity$122
Seeds + nutes (yr)~$200
Annual yield16 oz
Cost per oz$20

First-year savings

$1,678

vs $2,400 at dispensary

Full 2x2 tent setup →
Most popular

Standard (2x4)

2x4 tent · 10 oz/harvest

Startup equipment$800
Annual electricity$203
Seeds + nutes (yr)~$200
Annual yield40 oz
Cost per oz$10

First-year savings

$4,797

vs $6,000 at dispensary

Full 2x4 tent setup →

Premium (4x4)

4x4 tent · 20 oz/harvest

Startup equipment$1400
Annual electricity$406
Seeds + nutes (yr)~$200
Annual yield80 oz
Cost per oz$8

First-year savings

$9,994

vs $12,000 at dispensary

Full 4x4 tent setup →

What's Different About Growing in Oregon?

Very low — hydro power keeps rates down. 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: Oregon's dispensary prices (averaging $150/oz) determine how fast your grow pays for itself.

Measure 91 (Oregon Control, Regulation, and Taxation of Marijuana) allows up to 4 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: Oregon residential average of 11.4¢/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: $150/oz average retail in Oregon

• First-year savings assume you use or value everything you grow. Your mileage will vary.

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