3. Current Agritopia System
Current system for Agritopia
Yield:
● 3-6 months: 100 cubic yards
● 1 year: 200 cubic yards
Size:
● 10 windrows
● Each approximately 13’ x
9’ x 5.5’
4. System Cost Labor Cost Space req. Yield
O2 Compost Micro-Bin System $675 Minimal
(Continuous
Flow System)
4’ x 4’ (4 bins) or
4’ x 6’ (3 bins)
80 cubic yards/year
*Benchmark,
Cornerstone
$2375 Minimal
(Continuous
Flow System)
8’ x 8’ (4 bins) or
8’ x 12’ (3 bins)
65 cubic yards/month =
780 cubic yards/year
50/50: Micro-bin System
(above) + Windrows
$675 Minimal
(⅔ time
requirement of
current)
Micro-bin:
4’x6’ (3 bins)
Each windrow: 6’
x 10’ x 9’
80 cubic yards/year
+
200 cubic yards per year
___________________
280 cubic yards/year
Windrow
(new)
$0 - $3000 $8500/yr
(estimate)
Each windrow: 6’
x 10’ x 9’
400 cubic yards per year
Windrow (current) $0 $8500/yr
(estimate)
Each windrow: 6’
x 10’ x 5’
200 cubic yards per year
5. *Large In-Vessel Systems
Large In-Vessel systems may hold and compost 3 to
180 cubic yards at a time.
● Rotating Drum (pictured):
o At diameter 3.35 m. and length
36.58 m., can produce
approximately 185 cubic yards of
compost in 3 days
● Aerated Vessel (Benchmark):
o A system of 4 aerated Vessels at
8’x8’ or 8’x12’ can produce
approximately 65 cubic yards of
compost per month
6. In-Vessel Composting
PROS
● High Yield (rotating drum can
generate up to 185 cubic yards
in 3 days)
● Minimal Labor (for
Maintenance and refilling
drum)
● Potentiall Moveable (if drum
on trailer is purchased)
● Creates revenue (offers the
option of selling compost)
● Aesthetically pleasing
(compost is contained and out
of sight)
● Multiple sizes available
CONS
● Large initial investment
o including shipping
● Maintenance costs (Technically
greater than windrow method)
7. *O2 Benchmark System
1 month Process, Continuous Flow system (Filled every 30/40 days,
removed monthly)
Produces approximately 780 cubic yd. per year
$2,375 + shipping & Tax includes: Large Blower, Valves, Thermometer
2 size options:
4 8’x8’ side by side bins
3 8’x12’ side by side bins (pictured)
8. Mid-Size In-Vessel & Windrows
Mid-size In-Vessel arrangements may hold from .09 cubic
yards to 3 cubic yards and can be used in conjunction
with windrows.
9. Mid-Size In-Vessel & Windrows
PROS
● Guaranteed yield
● Cheap install
● Larg Storage Capacity
CONS
● Higher cost than windrows
only
● More labor intensive than
only in-vessel
10. O2 Micro System
1 month Process, Continuous Flow system (Filled every 30 days, removed
monthly)
Produces approximately 80 cubic yd. per year
$675 + shipping & Tax includes: blower, valves, thermometer
2 size options:
4 4’x4’ side by side bins
3 4’x6’ side by side bins (pictured)
11. Windrow Style
PROS
● Ease of transfer
o Requires only the
transfer of materials
● Inherent Knowledge of
System
● Historically preferred
● Only extra parts needed are
more dividers
● Exact yield known
CONS
● Smaller yield than in-vessel
system
● No progress
● Lesser potential for future
profit
● Same high workload
● Difficulties
o making windrows tall
enough to match/surpass
current yield
12. $2,497.00 $69.89 $291.00
Traffic Barricades for Windrows
$473.98
Cost Range Avg. Length Avg. Width
Jersey Barriers $250-$500 4-6 ft. 3 ft.
Concrete Barriers $650-$3000 6-8 ft. 4 ft.
13. Flora Options
Chinese Elm
Low Maintenance
Fast Growing
Wide Branch Span
Jacaranda
Gorgeous
Thrives in full sun
Large coverage
Australian Acacia
Fast Growing
Draught Tolerant
Low Maintenance
