HomeMy WebLinkAbout6/3/2015 - STAFF REPORTS - 3.A. OF 4AlM SA?
i ,'L
N CITY COUNCIL STAFF REPORT
r .
C1I F01tN\'
DATE: June 3, 2015 LEGISLATION
SUBJECT: AN ORDINANCE OF THE CITY OF PALM SPRINGS, CALIFORNIA,
AMENDING SECTIONS 5.35.110 AND 5.35.120 OF, AND ADDING
SUBSECTION C TO SECTION 5.35.340 OF, THE PALM SPRINGS
MUNICIPAL CODE RELATING TO MEDICAL CANNABIS CULTIVATION
AND INCREASING THE NUMBER OF PERMITTED MEDICAL CANNABIS
COOPERATIVES OR COLLECTIVES FROM FOUR (4) TO SIX (6).
FROM: David H. Ready, City Manager
BY: Douglas Holland, City Attorney
SUMMARY
The City's existing comprehensive medical cannabis regulatory program limits the
number of medical cannabis cooperatives or collectives in the city and only allows
cultivation of cannabis within the location of each medical cannabis cooperative, or
collective. This Ordinance increases the number of permitted medical cannabis
cooperatives or collectives to 6 and allows permitted cooperatives and collectives to
engage in cannabis cultivation at locations other than the locations of the collective or
cooperative.
RECOMMENDATION:
1. Waive text and introduce for first reading an Ordinance of the City Council "AN
ORDINANCE OF THE CITY OF PALM SPRINGS, CALIFORNIA, AMENDING
SECTIONS 5.35.110 AND 5.35.120 OF, AND ADDING SUBSECTION C TO SECTION
5.35.340 OF, THE PALM SPRINGS MUNICIPAL CODE RELATING TO MEDICAL
CANNABIS CULTIVATION AND INCREASING THE NUMBER OF PERMITTED
MEDICAL CANNABIS COOPERATIVES OR COLLECTIVES FROM FOUR (4) TO SIX
(6)-"
Douglas Holland David H. Ready, Es
City Attorney City Manager
Attachment: Draft Ordinance
REM NO.
ORDINANCE NO.
AN ORDINANCE OF THE CITY OF PALM SPRINGS, CALIFORNIA,
AMENDING SECTIONS 5.35.110 AND 5.35.120 OF, AND ADDING
SUBSECTION C TO SECTION 5.35.340 OF, THE PALM SPRINGS
MUNICIPAL CODE RELATING TO MEDICAL CANNABIS CULTIVATION
AND INCREASING THE NUMBER OF PERMITTED MEDICAL
CANNABIS COOPERATIVES OR COLLECTIVES FROM FOUR (4) TO
SIX (6).
City Attorney Summary
The City's existing comprehensive medical cannabis regulatory program
limits the number of medical cannabis cooperatives or collectives in the
city and only allows cultivation of cannabis within the location of each
medical cannabis cooperative, or collective. This Ordinance increases the
number of permitted medical cannabis cooperatives or collectives to 6 and
allows permitted cooperatives and collectives to engage in cannabis
cultivation at locations other than the locations of the collective or
cooperative.
The City Council of the City of Palm Springs, California, ordains:
SECTION 1. Section 5.35.110 of the Palm Springs Municipal Code is amended by
adding the following definition of "Medical Cannabis Cultivation Facility" to the Palm
Springs Municipal Code:
"Medical Cannabis Cultivation Facility" or "MCCF" means a fully enclosed building or
portion of a building that is solely used for the purpose of planting, growing, harvesting,
drying, processing, or storage of one or more cannabis or marijuana plants or any part
thereof.
SECTION 2. Section 5.35.120 of the Palm Springs Municipal Code is amended to read:
5.35.120 Maximum Number of Medical Cannabis Cooperatives and
Collectives.
No more than six (6) permitted MCCCs shall be maintained or operated in the City at
any time. This maximum number or permitted MCCCs shall not include any MCCF
approved pursuant to Section 5.35.340.0 of this Code.
SECTION 3. Subsection C is added to Section 5.35.340 of the Palm Springs Municipal
Code to read:
C. Medical Cannabis Cultivation Facility.
02
Ordinance No. _
Page 2
1. Each permitted MCCC may operate and maintain one (1) MCCF, subject
to the requirements of the City's Zoning Code. Nothing in this Section shall prohibit two
or more permitted MCCCs may operate or maintain such MCCF.
2. One hundred percent (100%) of all cannabis or marijuana cultivated at
each MCCF shall be distributed solely to a MCCF permitted pursuant to the provisions
of this Chapter.
3. Each MCCF shall be used exclusively for cultivation and for no other use
or purpose. This prohibition includes without limitation distribution or sales to patients.
4. No Person shall cultivate, plant, grow, harvest, dry, process, or store one
or more cannabis or marijuana plants or any part thereof in the City unless such activity
has been approved or authorized pursuant to the provisions of this Chapter.
SECTION 4. The Mayor shall sign and the City Clerk shall certify to the passage and
adoption of this Ordinance and shall cause the same, or the summary thereof, to be
published and posted pursuant to the provisions of law and this Ordinance shall take
effect thirty (30) days after passage.
PASSED, APPROVED, AND ADOPTED BY THE PALM SPRINGS CITY
COUNCIL THIS DAY OF 2015.
STEPHEN P. POUGNET, MAYOR
ATTEST:
JAMES THOMPSON, CITY CLERK
03
Ordinance No. _
Page 3
CERTIFICATION
STATE OF CALIFORNIA )
COUNTY OF RIVERSIDE ) ss.
CITY OF PALM SPRINGS )
I, JAMES THOMPSON, City Clerk of the City of Palm Springs, hereby certify that
Ordinance No. is a full, true and correct copy, and was introduced at a regular
meeting of the Palm Springs City Council on the _ day of , 2015, and adopted at
a regular meeting of the City Council held on the day of , 2015, by the
following vote:
AYES:
NOES:
ABSENT:
ABSTAIN:
JAMES THOMPSON, CITY CLERK
City of Palm Springs, California
04
Study- Pot Growers Inhale 1%of U.S. Electricity, Exhale GHGs of 3... http://www.nytimes.com/gwire/2011/04/11/llgeenwire-study-pot-gr...
the;\du flork gima i AR
a�f UJUING CROWD
April 11,2011
Study: Pot Growers Inhale i% of U.S.
Electricity, Exhale GHGs of 3M Cars
By COLIN SULLIVAN of
Indoor marijuana cultivation consumes enough electricity to power 2 million average-sized
U.S. homes,which corresponds to about 1 percent of national power consumption, according
to a study by a staff scientist at the Lawrence Berkeley National Laboratory.
Researcher Evan Mills' study notes that cannabis production has largely shifted indoors,
especially in California,where medical marijuana growers use high-intensity lights usually
reserved for operating rooms that are 500 times more powerful that a standard reading lamp.
The resulting price tag is about $5 billion in annual electricity costs, said Mills, who conducted
and published the research independently from the Berkeley lab. The resulting contribution to
greenhouse gas emissions equals about 3 million cars on the road, he said.
Narrowing the implications even further reveals some staggering numbers. Mills said a single
marijuana cigarette represents 2 pounds of CO2 emissions, an amount equal to running a
ioo-watt light bulb for 17 hours.
"The added electricity use [to an average home] is equivalent to running about 30
refrigerators," Mills wrote. "Processed cannabis results in 3,000 times its weight in CO2
emissions. For off-grid production, it requires 7o gallons of diesel fuel to produce one indoor
cannabis plant, or 140 gallons with smaller,less-efficient gasoline generators."
Mills went on to compare an average pot-growing facility to the electric power intensity of a
data center. In California, which is the top producing state and one of 17 states to allow
medical use of marijuana, cultivation accounts for 3 percent of all electricity use and 8 percent
of household use, he said.
Mills added that he completed his research with no external sponsorship, insisting that he does
not mean to pass judgment on the merits of cannabis cultivation or use. He also suggested that
the minimal amount of information available and the almost complete lack of regulation of the
industry mean energy consumption could easily be lowered.
61k-A16 254-c17T-
1 of 2 6/3/2015 4:20 PM
Study- Pot Growers Inhale 1%of U.S. Electricity, Exhale GHGs of 3... htip://www.nytimes.com/gwire/2011/04/11/1lgreenwire-study-pot-gr._.
"If improved practices applicable to commercial agricultural greenhouses are any indication,
the energy use for indoor cannabis production can be reduced dramatically," he said. "Cost-
effective efficiency improvements of 75 percent are conceivable,which would yield energy
savings of about $25,000/year for a generic io-module growing room."
Mills, a member of the U.N. Intergovernmental Panel on Climate Change, drew his data from
open literature and interviews with horticultural equipment retailers.
By some estimates, marijuana has long been the largest cash crop in the United States-- ahead
of corn, soybeans and hay. The industry has been pegged at about $4o billion in value,with
California,Tennessee, Kentucky, Hawaii and Washington the top five production states.
Water consumption is also an issue when it comes to environmental impact,with each
marijuana plant said to need between 3 and 5 gallons of water per day to grow to fruition.
Click here (pdf) to read Mills' study.
Sullivan is based in San Francisco.
Copyright 2011 E&E Publishing.All Rights Reserved.
For more news on energy and the environment, visit www._greenwire.com.
Greenwire is published by Environment&Energy Publishing. Read More >>
2 of2 6/3/2015 4:20 PM
ENERGY UP IN SMOKE
THE CARBON FOOTPRINT OF INDOOR CANNABIS PRODUCTION
Evan Mills, Ph.D.s
April 5, 2011
* The research described in this report was conducted and published independently by the
author, a long-time energy analyst and Staff Scientist at the Lawrence Berkeley National
Laboratory, University of California. Scott Zeramby provided valuable insights into
technology characteristics, equipment configurations, and market factors that influence
energy utilization.
The report can be downloaded from: http://evan-mills.com/energy-associates/Indoor.html
On occasion,previously unrecognized spheres of energy use come to light. Important
examples include the pervasive air leakage from ductwork in homes,the bourgeoning
energy intensity of computer datacenters, and the electricity "leaking" from millions of
small power supplies and other equipment. Intensive periods of investigation, technology
R&D, and policy development gradually ensue in the wake of these discoveries.
The emergent industry of indoor Cannabis production appears to have joined the list. This
report presents a model of the modern-day production process—based on public sources
and equipment vendor data—and provides national scoping estimates of the energy use,
costs, and greenhouse-gas emissions associated with this activity in the United States.]
Large-scale industrialized and highly energy-intensive indoor cultivation of Cannabis is a
relatively new phenomenon, driven by criminalization, pursuit of security, and the desire
for greater process control and yields.''' The practice occurs in every state,4 and the
415,000 indoor plants eradicated in 20095 represent only the tip of the iceberg.
Aside from sporadic news reports,0 7 policymakers and consumers possess little
information on the energy implications of this practice.' Substantially higher electricity
demand growth is observed in areas reputed to have extensive indoor Cannabis
cultivation. For example, following the legalization of cultivation for medical purposes in
California in 1996, Humboldt County experienced a 50% rise in per-capita residential
electricity use compared to other areas°Cultivation is today legal in 17 states, albeit not
federally sanctioned. In California,400,000 individuals are authorized to grow Cannabis
for personal medical use, or sale to 2,100 dispensaries.10 Official estimates of total U.S.
production varied from 10,000 to 24,000 metric tons per year in 2001,4 making it the
nation's largest crop by value.'' As of 2006, one third of national indoor production was
estimated to occur in California.12 Based on a rising number of consumers (6.6% of U.S.
population above the age of 12),13 national production in 2011 is estimated for the
purposes of this study at 17,000 metric tons, one-third occurring indoors.14
Driving the large energy requirements of indoor production facilities are lighting levels
matching those found in hospital operating rooms (500-times greater than recommended
for reading) and 30 hourly air changes (6-times the rate in high-tech laboratories, and 60-
times the rate in a modem home). Resulting electricity intensities are 200 watts per square
foot, which is on a par with modem datacenters. Indoor carbon dioxide (CO2) levels are
often raised to four-times natural levels in order to boost plant growth.
Specific energy uses include high-intensity lighting, dehumidification to remove water
vapor, space heating during non-illuminated periods and drying, irrigation water pre-
heating, generation of CO2 by burning fossil fuel,and ventilation and air-conditioning to
remove waste heat. Substantial energy inefficiencies arise from air cleaning, noise and
odor suppression, and inefficient electric generators used to avoid conspicuous utility bills.
Based on these operational factors, the energy requirements to operate a standard
production module—a 4x4x8 foot chamber—are approximately 13,000 kWh/year of
electricity and 1.5 x 106 BTU/year of fossil fuel. A single grow house can contain 10 or
more such modules. Power use scales to about 20 TWh/year nationally (including off-grid
production and power theft), equivalent to that of 2 million average U.S. homes. This
corresponds to 1% of national electricity consumption or 2% of that in households--or the
output of 7 large electric power plants.15 This energy, plus transportation fuel, is valued at
$5 billion annually, with associated emissions of 17 million metric tons of CO2—
equivalent to that of 3 million average American cars. (See Figure 1 and Tables 1-5.)
1
Fuel is used for several purposes, in addition to electricity. Carbon dioxide, generated
industrially16 or by burning propane or natural gas, contributes about 2%to the carbon
footprint. Vehicle use for production and distribution contributes about 15% of total
emissions, and represents a yearly expenditure of$l billion. Off-grid diesel-and gasoline-
fueled electric generators have emissions burdens that are three- and four-times those of
average grid electricity in California. It requires 70 gallons of diesel fuel to produce one
indoor Cannabis plant, or 140 gallons with smaller, less-efficient gasoline generators.
In California, the top-producing state, indoor cultivation is responsible for about 3% of all
electricity use or 8% of household use, somewhat higher than estimates previously made
for British Columbia.17 This corresponds to the electricity use of 1 million average
California homes, greenhouse-gas emissions equal to those from 1 million average cars,
and energy expenditures of$3 billion per year. Due to higher electricity prices and cleaner
fuels used to make electricity, California incurs 70%of national energy costs but
contributes only 20% of national COz emissions from indoor Cannabis cultivation.
From the perspective of individual consumers, a single Cannabis cigarette represents 2
pounds of CO2 emissions, an amount equal to running a 100-watt light bulb for 17 hours
assuming average U.S. electricity emissions (or 30 hours on California's cleaner grid).
The emissions associated with one kilogram of processed Cannabis are equivalent to those
of driving across country 5 times in a 44-mpg car. One single production module doubles
the electricity use of an average U.S. home and triples that of an average California home.
The added electricity use is equivalent to running about 30 refrigerators. Producing one
kilogram of processed Cannabis results in 3,000 kilograms of CO2 emissions.
The energy embodied in the production of inputs such as fertilizer, water, equipment, and
building materials is not estimated here and should be considered in future assessments.
Minimal information and consideration of energy use, coupled with adaptations for
security and privacy, lead to particularly inefficient configurations and correspondingly
elevated energy use and greenhouse-gas emissions. If improved practices applicable to
commercial agricultural greenhouses are any indication, such large amounts of energy are
not required for indoor Cannabis production."Cost-effective efficiency improvements of
75% are conceivable, which would yield energy savings of about $25,000/year for a
generic 10-module operation. Shifting cultivation outdoors virtually eliminates energy use
(aside from transport), although, when mismanaged,the practice imposes other
environmental impacts.19 Elevated moisture levels associated with indoor cultivation can
cause extensive damage to buildings. °Electrical fires are an issue as well?1 For legally
sanctioned operations, the application of energy performance standards, efficiency
incentives and education, coupled with the enforcement of appropriate construction codes
could lay a foundation for public-private partnerships to reduce undesirable impacts.22
Were compliant operations to receive some form of independent certification and product
labeling, environmental impacts could be made visible to otherwise unaware consumers.
Current indoor Cannabis production and distribution practices result in prodigious energy
use, costs, and greenhouse-gas pollution. The hidden growth of electricity demand in this
sector confounds energy forecasts and obscures savings from energy efficiency programs
and policies. More in-depth analysis and greater transparency in the energy impacts of this
practice could improve decision-making by policymakers and consumers alike.
2
FiLyure 1. Carbon Footprint of Indoor Cannabis Production
CO2
1EIe
generator High-intensity lamps
HeaterVentilated
Light fixture
� d f,
Water purifier
generator
Submersib Drying `„
Water heater 1% Vehicles
16% _
77
Water handling
Lighting
w Pump `` _ � 1 32%
z
CO2 production w, Ballast
Vehicles p 300
2% —
Space heat 4
4% ..
_ kgCOz/kgno
,
Indoor `
Cannabis
Motorized lamp
rails
Air-
conditioning Air conditioning
18%
Ventilation&
5�
LfIn-line duct fan,
coupled to lights
Controllers 3
Oscillating fan
Dehumidifier
Table 1. Configuration, Environmental Conditions, and Setpoints -
Production parameters
Growing module 16_square feet(excl.
. walking area) ..
Number of modules in a room. 10
Area of room 240 square feet
Cycle duration 78 days
Production continuous throughout the year 4.7 cycles
Illumination _. Leafphase' Flowering phase
Lamp type ,. Metal halide High-pressure sodium
Watts/lamp 600: 1000
Ballast losses (mix of magnetic&digital) - 136/e 13%
Lamps per growing module 1 1
Hours/day 181 12
Days/cycle 18 60
Daylighting none: none
Ventilation ......... ..._... _. _...,.,.
Ducted luminaires with"sealed" lighting CFM/1000W of light
compartment 150,(free flow)
Room ventilation (supply and exhaust fans) 30 ACH
Filtration Charcoal filters on exhaust; HEPA on supply
Oscilating fans: per module, while lights on 1
Water
Application. 40 gallons/room-day
Heating - Electric submersible heaters
75 F _.
Space conditioning
Indoor setpoint-day 82 F
Indoor setpoint- night 68 70 F
AC efficiency 10.0 SEER
Dehumidification 7x24 hours
CO2 production -target concentration (mostly
natural gas combustion in space) 1500 ppm
Electric space heating when lights off to maintain indoor setpoint
Target indoor humidity conditions 40-50%
Fraction of lighting system heat production 300/
removed by luminaire ventilation
Ballast location Outside conditioned space
Drying
Space conditioning, oscillating fans, maintaining 7.days
50% RH, 70-80F
Electricity supply.... ._.. . ._.
grid 85%
grid-independent generation (mix of diesel, 15%'.
propane, and gasoline)
Vehicle use
workers during production 2089 vehicle miles/cycle
wholesale distribution 750 vm/cycle
retail distribution 1 bounce 3520 vm/c cle
4
Table 2. Assumptions & conversion factors Fuels
_.S.ervice Levels _.._. .._... _ . .. Propane[b] 91,033BTU/gallon
Illuminance* 25-100,OOO lux Diesel [b] 138,690 BTU/gallon
Airchange rates* 30 changes per hour Gasoline [b] 124,238 BTU/gallon
Operations - Electric Generation Mix*
Cycle duration** 78 days _ Grid 85% share
Cycles/year** 4.7 continuous production Diesel generators 8% share
Production module area* 16 square feet(excl walking area) Propane generators S% share
Production module volume** 192 cubic feet
Airflow** 96 cubic.feet per minute Gasoline generators 2%.share
Modules per room` 10 Emissions Factors
Lighting _ Grid electricity -US[c] 0.609 kgCO2/kWh
Leafing phase Grid electricity -CA[c] 0.384 kgCO2/kWh
Lighting on-time*.. 18 hrs/day Grid electricity -non-CA US [c] 0.648 kgCO2/kWh
Duration* 18 days/cycle Diesel generator** 0,9221 kgCO2/kWh
Flowering phase Propane generator-- 0.877kgCO2/kWh
Lighting on-time* 12hrs/day Gasoline generator** 1.533',kgCO2/kWh
Duration" 60 days/cycle Blended generator mix** 0989',kgCO2/kWh
Drying ,. Blended on/off-grid generation -CA** 0475.kgCO2/kWh
Hours/day- 24 hrs Blended on/off-grid generation -US** 0.666 kgCO2/kWh
Duration* 7 days/cycle Propane combustion 63.1 <9CO2/MBTU
Equipment Prices
Average air-conditioning age 5 years Electricity price -grid (California - PG&E) [d] $0.390',per kWh(Tier 5)
Air conditioner efficiency(SEER) 10 Minimum standard as of 1/2006 Electricity price -grid (US, excl..CA) [e] $0.127'.per kWh
Electricity price
Fraction of lighting system heat production -gff-gnd** $0.390 per kWh
removed by luminaire ventilation 30^/0 Electricity price -blended on/off- CA** $0.390 per kWh
Diesel generator efficiency* 27% 551<W Electricity price - blended on/off- US** $0.166 per kWh
Propane generator efficiency* 2S% 27kW Propane Price[f] $2.20.per gallon
Gasoline generator efficiency* 15% 5.5kW Gasoline Price -US average [f] $3 68 per gallon
Fraction of total prgd'n with generators* 15% Diesel Price US average[f] $3 981.per gallon
-Water use findcorl* I gallons/day plant - Wholesale price of Cannabis [g] $4,000.$/kg
Transportation: Production phase(10 modules) 25 miles roundtrip Production
Daily service(1 vehicle) 78 trips/cycle.Assume 20% Irve plants per production module* 4.'
on site - -
Biweekly service(2 vehicles) 11 trips/cycle - - - Net production per production module [h] 0 7'kg/cycle
Harvest(2 vehicles) _ _ 10 trips/cycle US production (2011) [i] 16,974;metric tonnes/y
Total vehicle miles** 2089.vehicle miles/cycle California production (2011) [i] 5,922 metric tonnes/y
Transportation: Distribution Fraction produced indoors[i] 33%
Amount transported wholesale. - 5 kg per trip _. . US indoor production modules** 1,727,283
Mileage(roundtrip) 750 vm/cycle Calif indoor production modules** 602,597-
Retail(0 25oz x 5 miles roundtrip) 3520 vm/cycle -- - -
Total** 4270 vm/cycle Cigarettes per kg** _ 3,000!,
_,...,.._,Fuel economy, typical car [a] 22 mpg Other
-- _.- Average refrigerator 450';kWh/ ear
Annual emissions,typical car [a] 5195 kg CO2 g 9 Y
_.__.. -.
0.416 kg CO2/mile 173 kgCO2/year(US
Annual emissions,44 mpg car** "` 2598 kg CO2 average)
0.208 kg CO2/mile Electricity use of a typical US home- 2009 [7] 11,646.kWh/year
Electricity use of a typical California home-
Cross-country US mileage 2790 miles 6,96E kWh/year
+* trade and product literature; interviews with equipment vendors
** calculated from other values
5
Table 3, Carbon footprint of indoor Cannabis Production
(Average US conditions)
kWh/kg kgCO2emissions/kgr
Lighting 1,479 985 32.2%
Ventilation & Dehumid. 1,197' 797 26.1%
Air conditioning 827 551 18.0%
_ .
Space heat 197 131 ` 4.3%
CO2 production 54 r 49 1.6%
Water handling 28 19; 0.6%
_._
Drying _. 73 48 1.6%
Vehicles 479 15.7%
Total 3,855 3,059 ' 100.0%
Note: "CO2 production" represents combustion fuel to make on-site CO2. Assumes 15% of
electricity is produced in off-grid generators. As the fuels used for CO2 contain moisture,
additional dehumidification is required (and allocated here to the CO2 energy row). Air-
conditioning associated with CO2 production (as well as for lighting, ventilation, and other
incidentals) is counted in the air-conditioning category.
6
Table 4. Equivalencies
Indoor Cannabis production U of California's total o of California's n of total US o of US
3 la 8 /o household 1 /o electricity, 2 /o household
consumes._ electricity, and
electricity and electricity
million
'. tonnes per
U.S. Cannabis production &distribution $5 Billion, and results in the 17 '.. year of equal to the 3 averlion
age
energy cost... emissions of greenhouse emissions of
'gas emissions cars
(CO2)
U.S. electricity use for Cannabis 2 million average US homes
production is equivalent to that of...
million
tonnes per million
California Cannabis production and Billion, and results in the year of equal to the
distribution energy cost $3 emissions of 4 greenhouse : emissions of 1 average
':. gas emissions cars
(CO2)
California electricity use for Cannabis 1 million average California :.
production is equivalent to that of... homes
A typical 4x4x8-foot production average average
module, accomodating four plants at a 1 average U.S. homes, or 2 California or 28 new
time, consumes as much electricity as... homes refrigerat
ors
Every 1 kilogram of Cannabis produced : cross-country trips
using national-average grid power 2.8 tonnes of CO2 equivalent to 4.9 in a co mpg car
results in the emissions of...
Every 1 kilogram of Cannabis produced
using a prorated mix of grid and off- 3 1 tonnes of CO2 equivalent to 5,3 cross-country trips
grid generators results in the emissions in a 44mpg car
of..
Every 1 kilogram of Cannabis produced untry trips
using off-grid generators results in the 4.3 tonnes of CO2 equivalent to 7.4 in a cross-country
mpg car
emissions of..
kilograms . .. .
of CO2
Transportation (wholesale+retail) 52 gallons of gasoline per kg or $1 billion dollars 479 per
consumes._ annually, and kilogram
- of final
product
pounds of CO2,
One Cannabis cigarette is like driving... 15 miles in a 44mpg car emitting 2 which is equivalent 17 hours
about to operating a 100
watt light bulb for
Of the total wholesale price... 24 is for energy (at average
%®
U.S. prices)
7
per cycle, per'. per year, per
"fable S. Indicators (Average us conditions) production production
module. module
Energy Use
Connected Load 3,039 watts/module
Power Density 190 ' watts/ft2
Elect 2,698 12,626 kWh/module
Fuel to make CO2 0.3 1.5 MBTU
Transportation fuel 37' 172,gallons
On-grid results
Energy cost 592 2,770]$/module
Energy cost . . .. . _. 846 $/kg__. _.
Fraction of wholesale price 21%
CO2 emissions 1,988 9,302kg . .. _.
CO2 emissions 2,840 kg/kg
_._
Off-grid results (diesel) - ......... _,._
Energy cost 1,196 5,595 $/module
Energy cost 1,708 $/kg
Fraction of wholesale price 43%
CO2 emissions 3,012 14,094 kg
CO2 emissions 4,303 kgCO2/kq
Blended on/off grid results
Energy cost 682 3,194 $/module
Energy cost 975,$/kg .__.
Fraction of wholesale price 24%
CO2 emissions 2,141 10,021 kg
CO2 emissions _ 3,0591kgCO2/kg
Of which indoor CO2 production 9 42 kgCO2
Of which, vehicle use
Fuel use _ ..
During Production 14 gallons/kg
Distribution 39 gallons/kg
Cost
During Production - $50 $/kg
Distribution $143 $/kg _. . . . _.
Emissions ..... _... .. _.
During Production 124 kgCO2/kg
Distribution 355 k CO2/k
8
Number of'.
4x4x8-loot'. Input Hours/day.Hours/day: Days/cycle Days/cycle kWh/year per
Table 6. Model Energy type Penetration Rating production energy per Units ((leaf (flower (flower kWh/cycle production
modules module phase) phase)' (leaf phase). phase) module
___. _ ..._. . . ... ..served:_
Light....... . _.
Lamps(HPS) elect _ 100% 1000 1 1000 W 12 60r 720 3,369
Ballasts(losses) - elect .100% 13% 1 130 W 12 60' 94' 438
Lamps(MH) elect 100% 600 1I 600 W 18 18 r 194 910
Ballast(losses) elect 100% 13% 1' 78 W 18. 18 r 25' 118
Motorized rail motion elect 5% i5 P 0.3' W is 12 18 60 0 1
Controllers elect 50% 10 10' 1 W 24 24 18 60 2 9
Ventilation and moisture control .
Luminare fans(sealed from conditioned space) elect 100% 454 10". 45 W 18. 12 18 60 47 222
Main room fans-supply Bled 100% 242' 8 1'. 30 W 18 12 18 60 31 145
_ .. :.
Main room fans-ezhaust elect 100% 242 B.P. 30. W 18 12 18 60 31 145
Circulating fans(18") elect 100%. 130:. 1 130 W 24. 24 18 60 242 1,134
Dehumidification elect 100% 1,035 4 259. W 24 24 18 60r 464' 2,267
Controllers elect 50% 10. 10'. 1 W 24 24 18 60 2 9
Spai
Resistance heat[when lights off] : 90%. 1,850 _ 10: 167 W '. 6 12 18 60 138 645
Carbon Dioxide.... . _.
Parasitic electricity elect 50-A 100 10 5 W 18 12 18 60 5 24
AC(see below) elect 100°h' _. _. ... .
In-line heater elect 5% 115 301 0.6 W 1B 12 18 60 1 3
Dehumidification(10%adder) elect . . 500A 104: 0.4, 26 W IB 12 18 60r 27 126
Monitor/control elect 50% 50 30__ 3 W 24 24 18 60 5... 22
Water
Heating elect 100% 300 101 30 W 18 12 18 60 19 89
Pumping-irrigation elect 100% 55. 10-. 55 W 1 1 18 60 0 2
Drying... ._
Dehumidification elect 75% 1,850 10 139 W 24 ]r 23' 109
Circulating fans elect 1D0% 130 5. 26 W : 24 ]r 4' 20
Heating elect 75% 1,650` IOI 139 W 24 ]r 23; 109
Electricity subtotal elect r 2y19 91918
Air-conditioning 579 2,709
Lighting loads 239 1,117
Loads that can be rem ted elect 100% 1,180 10: 118 W 221 1,034 '.
Loads that can'[be remoted elect 100%' 450: 30: 45 W 84 394
_._..
CO2-production heat removal elect . SO%-. 1,118- 16.7- 34 W 18 12 18': 60 35 164
Electric ltv Total elect ♦ 3,039 W - 2,698 12,626
Number of'.
QN-SITE FUEL Units Twhnol Rating 4x4x8-foot Input Hours/day Hours/day Days/cyde
o gy' (BTU/', production! energy per (leaf (flower Days/cycle. (flower MBTU or; MBTU or
Mix hour)'. modules' module phase). phase) (leaf phase). phase) koc02/ryde' koCD2/year
served'
On-sitnCO2 production
Energy use propane 45%,.11,176'. 167'. 671 BTU/ho : Ie. 12 18 60': 0.3 1.5
CO2 production -> emissions kg/CO2 20 93
Externally produced Industrial CO2 5%. 1 0.011 gallonsC 18 12 18 60I 1 3
02/hr :Weighted-average on-site/purchased kgCO2 : 2 10
Weigh ed average on-site/purchased lug CO2 .. 9. . 42
9
Notes for Tables
[a]. U.S. Environmental Protection Agency. "Emission Facts: Average Annual Emissions and
Fuel Consumption for Passenger Cars and Light Trucks."
http://www.epa.gov/oms/consumer/fDO013.htm [accessed February 5, 2011]
[b]. Energy Conversion Factors, U.S. Department of Energy,
http://www.eia.doe.gov/encrgyexplained/index.cfm?page=about_energy_units [Accessed
February 5, 2011]
[c]. U.S. Department of Energy, "Voluntary Reporting of Greenhouse Gases Program"
http://www.eia.doe.gov/oiaf/1605/ee-factors.htmi [Accessed February 7, 2011]. CA:
Marnay, C., D. Fisher, S. Murtishaw, A. Phadke, L. Price, and J. Sathaye. 2002.
"Estimating Carbon Dioxide Emissions Factors for the California Electric Power Sector."
Lawrence Berkeley National Laboratory Report No. 49945. http://industrial-
energy.lbl.gov/node/148
[d]. PG&E residential tariff as of I/1/1 I, Tier 5
http://www.pge.com/tariffs/ResE[ecCurrent.xls [Accessed February 5, 2011]. In practice
a wide mix of tariffs apply, but the relative shares are not known.
[e]. State-level residential prices, weighted by Cannabis production from [Reference 4],with
actual tariffs and U.S. Energy Information Administration, "Average Retail Price of
Electricity to Ultimate Customers by End-Use Sector, by State,"
http://www.cia.doe.gov/electricity/epm/table5_6_a.html [Accessed February 7, 2011]
[f]. U.S. Energy Information Administration, Gasoline and Diesel Fuel Update (as of
2/14/2011) - see http://www.eia.gov/oo�,,/info/¢du/gasdiesel.asp Propane prices -
http://www.eia.gov/dnav/pet/pet_pri_prop_a_EPLLPA_PTA_dpgal_m.htm [Accessed
April 3, 2011]
[g]. Montgomery, M. 2010. "Plummeting Marijuana Prices Create A Panic in Calif."
http://www.npr.org/templates/story/story.php?storyld=126806429
[h]. Toonen, M., S. Ribot, and J. Thissen. 2006. "Yield of Illicit Indoor Cannabis Cultivation
in the Netherlands."Journal of Forensic Science, 15(5):1050-4.
http://www.ncbi.nlm.nih.gov/pubmed/I 7018080
[i]. See Reference 14 for derivation.
[j]. Total U.S. Electricity Sales: U.S. Energy Information Administration, "Retail Sales of
Electricity to Ultimate Customers: Total by End-Use Sector"
http://www.eia.gov/cneaf/electricity/epm/table5 _I.html [Accessed March 5, 2011]
[k]. California Energy Commission. "Energy Almanac."
http!//energyalmanac.ca.gov/electricity/us per capita_electricity.htmI [Accessed
February 19, 2011). See also Total California Electricity Sales: California Energy
Commission. 2009. California Energy Demand: 2010-2020--Adopted Forecast. Report
CEC-200-2009-012-CMF), December 2009 (includes self-generation).
10
References
1. This report presents a model of typical production methodologies and associated
transportation energy use. Data sources include equipment manufacturer data, trade media,
the open literature, and interviews with horticultural supply vendors. All assumptions used
in the analysis are presented in Table 2. The resultant normalized (per-kilogram) energy
intensity is driven by the target environmental conditions,production process, and
equipment efficiencies. While less energy-intensive processes are possible (either with
lower per-unit-area yields or more efficient equipment and controls), much more energy-
intensive scenarios are also possible (e.g., rooms using 100% recirculated air with reheat,
hydroponics, and loads not counted here such as well-water pumps and water purification
systems). The assumptions about vehicle energy use are likely conservative, given the
longer-range transportation associated with interstate distribution. Some localities (very
cold and very hot climates) will see much larger shares of production indoors, and have
higher space-conditioning energy demands than the typical conditions assumed here. Some
authors [See Plecas, D. J. Diplock, L. Garis, B. Carlisle, P. Neal, and S. Landry.Journal of
Criminal Justice Research, Vol. 1 No 2.,p. 1-12.] suggest that the assumption of 0.75kg
yield per production module per cycle is an over-estimate. Were that the case, the energy
and emissions values in this report would be even higher, which is hard to conceive.
Additional key uncertainties are total production and the indoor fraction of total production
(see note 14), and the corresponding scaling up of relatively well-understood intensities of
energy use per unit of production to state or national levels by weight of final product.
Greenhouse-gas emissions estimates are in turn sensitive to the assumed mix of on-and
off-grid power production technologies and fuels, as off-grid production tends to have
substantially higher emissions per kilowatt-hour than grid power. Costs are a direct
function of the aforementioned factors, combined with electricity tariffs, which vary widely
across the country and among customer classes. More in-depth analyses could explore the
variations introduced by geography and climate, alternate technology configurations,and
production techniques.
2. U.S. Department of Justice. National Drug Threat Assessment: 2010
http://www.justice.gov/ndic/pubs38/38661/marijuana.htm#Marijuana
3. World Drug Report: 2009. United Nations Office on Drugs and Crime, p. 97,
http://www.unodc.org/unodc/en/data-and-analysis/WDR-2009.htmi For U.S. conditions,
indoor yields per unit area are estimated as up to 15-times greater than outdoor yields.
4. Hudson, R. 2003. "Marijuana Availability in The United States and its Associated
Territories." Federal Research Division, Library of Congress. Washington, D.C.
(December). 129pp. See also Gettman,J. 2006. "Marijuana Production in the United
States," 29pp. http://www.drui,,science.org./Archive/bcr2/app2.htmi
5. See http://www.justice.gov/dea/programs/marijuana.htm
6. Anderson, G. 2010. "Grow Houses Gobble Energy."Press Democrat, July 25.See
http://www.pressdemocrat.com/article/20100725/ARTICLES/100729664
7. Quinones, S. 2010. "Indoor Pot Makes Cash, but Isn't Green."SFGate,
http://www.sfgate.com/cgi-bin/article.egi?f�=/c/a/2010/10/2 I/BAPO I FU9M S.DTL
8. A study by RAND appears to have severely underestimated the true energy costs. See J. P.
Caulkins. 2010. "Estimated Cost of Production for Legalized Cannabis."RAND Working
Paper, WR-764-RC. July. Although the study over-estimates the hours of lighting required,
11
it under-estimates the electrical demand and applies energy prices that fall far short of the
inclining marginal-cost tariff structures applicable in many states, particularly California.
9. Lehman, P. and P. Johnstone. 2010. "The Climate-Killers Inside."North Coast Journal,
March 11.
10. Harvey, M. 2009. "California Dreaming of Full Marijuana Legalisation." The Sunday
Times, (September).
http://business.timesonline.co.uk/tol/business/industry_sectors/health/article6851523.eee
11. See Gettman, op cit., at ref 4.
12. See Gettman, op cit., at ref 4.
13. U.S. Department of Health and Human Services, SAMHSA, 2009 National Survey on
Drug Use and Health(September 2010). https://nsduhweb.rti.org/
14. Total Production: The only official domestic estimate of U.S. Cannabis production was
10,000 to 24,000 tonnes for the year 2001. Gettman(op cit., at ref. 4)conservatively
retained the lower value for the year 2006. This 2006 base is adjusted to 2011 values
using 10.9%/year net increase in number of consumers between 2007 and 2009, per U.S.
Department of Health and Human Services (op cit., at ref. 12). The result is
approximately 17 million tonnes of total production annually (indoor and outdoor).
Indoor Share of Total Production: The three-fold changes in potency over the past two
decades, reported by federal sources, are attributed at least in part to the shift towards
indoor cultivation [See http:/,�www.justice.gov/ndic/pubs37/37035/tiational_litm and
Hudson op cit., at ref 4].A weighted-average potency of 10% THC (U.S. Office of Drug
Control Policy. 2010. "Marijuana: Know the Facts"), reconciled with assumed 7.5%
potency for outdoor production and 15% for indoor production implies 33.3%::67.7%
indoor::outdoor production shares. For reference, as of 2008, 6%of eradicated plants
were from indoor operations, which are more difficult to detect than outdoor operations.
A 33% indoor share, combined with per-plant yields from Table 2, would correspond to a
4% eradication success rate for the levels reported (415,000 indoor plants eradicated in
2009)by the DEA (op cit., at ref 5). Assuming 400,000 members of medical Cannabis
dispensaries in California(each of which is permitted to cultivate), and 50% of these
producing in the generic 10-module room assumed in this analysis, output would slightly
exceed this study's estimate of total statewide production. In practice, significant indoor
production is no doubt conducted outside of the medical marijuana system.
15. Koomey, J., et al. 2010. "Defining A Standard Metric for Electricity Savings."
Environmental Research Letters, 5, doi:10.1088/1748-9326/5/1/014017.
16. Overcash, Y. Li, E. Griffing, and G. Rice. 2007. "A life cycle inventory of carbon dioxide
as a solvent and additive for industry and in products."Journal of Chemical Technology
and Biotechnology, 82:1023-1038.
17. Specifically, 2% of total Provincial electricity use or 6% of residential use, as reported by
BC Hydro in Garis, L. 2008. "Eliminating Residential Hazards Associated with
Marijuana Grow Operations and The Regulation of Hydroponics Equipment," British
Columbia's Public Safety Electrical Fire and Safety Initiative, Fire Chiefs Association of
British Columbia, 108pp. See also Bellett, G. 2010. "Pot Growers Stealing $100 million
in Electricity: B.C. Hydro studies found 500 Gigawatt hours stolen each year."Alberni
Valley Times. October 8. Analysis by B.C. Hydra in 2006 identified nearly 18,000
residential utility accounts in Vancouver with suspiciously high electricity use [see Garis
2008]. There were an estimated 10,000 indoor operations in B.C. in the year 2003,
generating $1.2413 in wholesale revenue [See Plecas et al., op cit., at ref 1.].
12
18. See, e.g., this University of Michigan resource
http://www.hrt.msu.edu/energy/Default.htm
19. "Environmental Impacts of Pot Growth." 2009. Ukiah Daily Journal. (posted at
http://www.cannabisnews.org/united-states-cannabis-news/env ironmental-impacts-of-
pot-growth/)
20. For observations from the building inspectors community, see
http://www.nachi.org/marijuana-grow-operations.htin
21. See Garis, L., op cit., at ref 17.
22. The City of Fort Bragg, CA, has implemented elements of this in TITLE 9—Public
Peace, Safety, & Morals, Chapter 9.34.
http://city.fortbragg.com/pages/searchResults,lasso?-
token.editChoice-9.0.0&SearchType—MC superSearch&CurrentAction—viewResult#9.32
.0
13
Bill Bradbury Jennifer Anders
Chair Vice Chair
Oregon Montana
Henry Lorenzen Pat Smith
Oregon Montana
W.Bill Booth Tom Karler
Idaho Northwest Power and Washington
James A.Yost Conservation Council Phil Rockefeller
Idaho Washington
September 3, 2014
MEMORANDUM
TO: Power Committee
FROM: Massoud Jourabchi
SUBJECT: Electrical load impacts of indoor commercial cannabis production
BACKGROUND:
Presenter: Massoud Jourabchi and Maggie Lahet
Summary: Under state of Washington initiative 1-502 legal production of cannabis
started in 2013-2014. Council analysis estimated the demand for electricity for the
growers of cannabis represent about 80-163 Mwa of new load to the regional system.
Relevance: Producing a long-term Load forecast is a requirement of the Act. In
responding to this requirement, Council's load forecast keeps track of all forms of
electricity consumptions, in particular new and emerging loads. Three such emerging
loads are data centers, electric vehicles and in-door cannabis production. In this
presentation we will present results of preliminary analysis on load impact from
cannabis production.
Workplan: 1.D. Update long-term load forecast. In preparation of the Seventh Power
Plan, forecast of loads from cannabis producers will be incorporated into
the long-term demand forecast.
Background: The State of Washington, through its initiative process, enacted a law
allowing for recreational use of cannabis. Hundreds of producers have now been
licensed to grow and process cannabis. Those producers using indoor growing facilities
place a significant load on the electrical system to provide lighting, HVAC and other
required services for the plants. Staff conducted interviews with a number of these
producers in order to develop estimates of existing and forecast of electrical loads from
these operations.
More Info: NA
9/3/2014
IMPACT OF CANNABIS
PRODUCTION IN THE PACIFIC
NORTHWEST ON REGIONAL
ELECTRICITY LOADS
September 9, 2014
Acknowledgement
THIS PRESENTATION BENEFITED FROM INDUSTRY BACKGROUND
WORK DONE BY CLEARESULT COMPANY.
*Narthxes�Powv ancf
CO.FM..ft.C�- rcti
Why are we doing this study
■ Better understanding of impact of I-502
on electric loads in state of Washington.
■ Indoor cannabis production can be a very
electricity intensive.
■ Provide information on energy efficiency
potential for Seventh Plan development
�No,mwes w...n
Conwnvlkm Gauncn
1
9/3/2014
Presentation Overview
■ Growing Cycle — Why Growing Has Moved
Indoors
• Stages and pace of plant development in nature
• Stages and pace of plant development in modern indoor
growing facilities
■ Results from Council's survey of I-502
producers
■ Load Forecast Range
■ Identify Potential Energy Efficiency Options
N.gMi t PON.nntl
Consawib•Cwncr
.
-t ,tiiia IIN' i4'uz -cam—`�. 'm." Ji W 11131i'k 3;
F _ d
Aw4w.w'
Northwest o. nntl
Cervmrvdlan Cwr>Lil '
2
9/3/2014
Estimated State Shares of National
Cannabis Production (2006)*
L
—D t
HE ,.
Idaho
_ ox
'As estimated by Oregon --'--Montana
Federal Government .. oy�
' 1%
}�Northwest rawv arM
'y�Comwvaaon Cw:c'
Natures Growing Cycle
Time Mid Up to Summer Mid Late
Spring Solstice Summer Summer
v,
> Seedling Vegetative Flower Seed
Plant Mode g
Mode Mode Mode
12-14 weeks � "8-12 weeks
LONG DAYS SHORTER,
Norttr V Po Ono
Cansarvallvn Cwru.i: iW
3
9/3/2014
Method of Production
120%
100%
sorb
Indoors
40%
■outdoors
*�.,fP war d
Cwvw,vft.C",e.
Why producers go indoors?
Indoor operations seek to:
■ Reduce cycle time
• Replicate and standardize ideal outdoor
conditions:
• Temperature
• Lighting
Atmosphere
• Watering
• Nutrients / plant food
■ Increased security
Gonwewibn Gwrw'r.
4
9/3/2014
Modern Indoor Growing Cycle
Time Always Always Always Always
Clone Vegetative Flower Seed
Plant ModeeMode Mode Mode
6-8 weeks � � 18-10 weeks
LONG DAYS SHORTER DAYS
Nona ,f F..aM
CtlM1iNlWWn�(KIS
G
11 1 it
An indoor grow module accommodating 4 planb
sucks as much electricity as zg refrigerators.
NorlFwest Poww nrc1
COn10fYOaOn Cwr4R
5
9/3/2014
Electricity Use in Indoor Production
Nam,r,1„rrrnx� �Aluminum Production^16 KWH/kg
Co-mwe"Cv rv; Indoor Cannabis production^5D00 KWH/kg
Hourly Load profile of one indoor
producer
Producers do not have a flat profile
ca—1z I TIM 11q 17"120 W-TF M 11"12 WlM.bOI a-�
E I
_
North a r laww nntl
Contmrallon Cauru:i
6
9/3/2014
Hourly Load Shapes
(one producer)
Can contribute significantly to winter peak
25
20 _..
1s
10 _. .,.._.. ,.
Average '
+Maximum
Minimum
0 _. _..
.-1 N M V Ul t0 n W Ot O .-1 N M V �'1 lD r W Ol O ti N M V
Hour of the Day
Northwest Pared oMl
Co.�ss�w�Me Ce4ea�
Findings from Council 's Survey of
1-502 Producers
■ 121 out 2626 Producers approved in July
■ 1,913 Processor applications
■ 2,167 Retail applications
■ 13 Indoor producers were surveyed
■ Square footage, facility layout, plant strain
and number of plants etc. vary by producer
■ Lighting ,directly or indirectly, accounts for 8o%
of electricity use
Ncr"r OP.and
C011t01YCIi�D11CWltiil
9/3/2014
Survey Results (continued)
Baseline for indoor production:
• Vegetation Room
• i,000W Metal Halide,plus other lights
• 2-8 plants per lamp
• Operated 24 hours on, 18 hours on/6 hours off
• Flowering room
• 1000W High Pressure Sodium w/adjustable ballast 600W-1150W
• 2-3 plants per lamp
• Operates 12 hours on/12 hours off
• HVAC
• Rooms have separate HVAC and lighting
• Mini split for every 1,000 sq.ft.with additional large unit
• Temperature and Humidity set points
Nartttteesf Powv�rxi
Cmnenallon Coux+!
Preliminary Estimate of Demand for Cannabis
2014-2035
400 _
350
a 300 ...
m N
Vf 250 .._. ...... ._ e ,
200 --- € Y
xr
m
E 100 rr -yi
ou 50 }a 1
0
2014 2015 2020 2025 2030 2035
*Washington Low 103 217 139 164 187 214
Washington central. 131 350 178 210 241 277
11 d Washington high 161 3,g4 17n 261 300, 346 .i
CPoiA40e0O CW IA:iI
8
9/3/2014
Preliminary Estimate of Demand for Cannabis
2014-2035
800
700
VIf€
a 600 _.. .. _..
n
3 I11
W
ur 500
400
s w 300 a ::
E 200
10
2014 2015 2020 2025 2030 2035
■Regional Low 205 233 276 325 371 424
w Regional central'; 261 297 353 418 479 549
a Re81_ondl high 320 366 437 518 595, J 685
sNf}O ,t Pm..,.I
COIIFNWN9n CcJ„L
Forecast of Demand from Producers*
2014-2035
(preliminary)
200
250
c
150 _.. _.
•o
so
m lOD e
2014 2015 2020 2025 2030 2035
■Idaho 10 12 14 17 20 22
W Montana 8 10 11 13 15 17
■Oregon 37 43 51 60 68 78
WWashingtonl 57 65 77 91 104 120
Kanm v now-r and * Does not include processors and retailers ..
ConavMbn Caur.;
9
9/3/2014
Range of Forecast of Demand
for Electricity
■ 6o MWa calculated using estimated demand for
cannabis in Washington and borrowed metric of
kWh/kg
■ 8o MWa calculated using % of total sq. ft. that
each tier occupies and primary source metric of
.04 kW/sq. ft.
■ 16o MWa calculated using total allowable
square footage for Washington cannabis
production and using borrowed metric of
kWh/sq.ft./cycle
Forecasted range of 6o 16o MWa
NOrt1AYCSf PONY Olid
r.Pe1OlNPaPn CW pCt
Efficiency Potential
• Surveyed Washington producers expressed interest in
switching to energy efficient lighting (concerned
about cost of LED lamps)
• LED Lighting Being Tested
Test t-Cannabis Strain:Bio-Diesel
LIPS:
• 1.6816s total Yield,1,000W,q'xq'area,1.53lb/kW,27.95%THC
LED:
• 1.9lbs total yield,780W,q'xq'area,2.44lb/kW,26.07%THC
Test 2-Cannabis Strain:Durban Poison
HPS:
1.751bs total yield,11O0W,q'xq'area,i.6lb/kW,14.39%THC
LED:
1.85 lbs total yield,78oW,4'x4'area,2.371b/kW,22.28%THC
Findings:LED provided 6%increase in yield,48%increase in conversion efficiency in lb/kW
Ivorthuesi P.and
CP ffvalbn council
10
9/3/2014
Savings Potential Washington
2014-2035
40
35
30
25 Na
c 20
10
15 •`R w`
h
x yr
5 �T
".
2014 2015 2020 '.. 2025 : 2030 2035
'.■Savings from HVAC 1 1 1 1 2 2
u Savings from lighting 17 19 23 27 31.. 36
NOffI1WCSf PW.Gf flntl
(y11}6rWl,pn COV,iCit
Summary
■ Indoor cannabis production is very energy
intensive.
■ There are significant efficiency gains
possible by:
• Using better lighting and HVAC
• Moving to greenhouses
• More research needed to establish the
current and future baseline.
A
11