King Grass could help supply U.S. Virgin Islands energy needs. Presentation made at Energy Development in Island Nations December 2013.

1. U.S. Virgin Islands Biomass/Biogas
Renewable Energy Project
December 12, 2013

2. The Team

3. Tibbar Energy USVI LLC
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Tibbar Energy USVI, LLC is a licensed,
100% woman owned and operated
business. The sole owner and principal
officer, Tania Tomyn, lives on St. Croix,
USVI.
Tania has been a successful government
contractor in the electrical field working
for such U.S. government agencies as:
Bureau of Reclamation, Defense
Logistics Agencies (Aviation, Land and
Maritime), Department of Energy, Army
Corps of Engineers, NAVFAC, Air Force,
Department of Veteran Affairs.

4. Renew Energy Owners Engineer
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SELECTED REFERENCES
Name
Year
Type
Capacity
Linkogas, Denmark
1990
1999
Project management,
engineering, supervision of
operations.
Schraden Biogas, Germany
Engineering, supervision of
operations.
2010
1994
Joint biogas plant.
Rebuilt to increase
capacity.
5,000 m3 new
digester.
New gas engine.
Joint biogas plant
360 tonnes/day.
550 tonnes/day.
Expanded to 700 tonnes/day.
Manure, corn silage and
organic waste.
3 MW power output.
300 tonnes/day.
Manure and organic waste.
1.7 MW power output.
Blaabjerg Biogas, Denmark
1996
Joint biogas plant
1997
Pilot plant
1999
Biogas plant
2004
Biogas plant
2007
Biogas plant
Blaabjerg Biogas, Denmark
2009
Existing joint biogas plant
Engineering, supervision of
operations.
KURANA, Lithuania
2010
Biogas and separation plant
integrated with an
ethanol plant. The
first biorefinery
project in the
world
300 tonnes/day.
Manure, corn silage and
organic waste.
1.5 MW power output.
40 tonnes/day.
Pig slurry and corn silage.
0.2 MW power output.
70 tonnes/day.
0.4 MW power output.
100 tonnes/day.
Pig slurry.
0.8 MW power output.
270 tonnes/day.
Manure, corn silage and
organic waste.
2 MW power output.
New 5,000 m3 digester and
rebuilding of existing.
2 x 2,500 m3 digesters.
400 tonnes manure, corn
silage and organic
waste/day.
1.6 MW power output.
800 tonnes of whole stillage
and organic waste per day.
4 MW power and 7 MW
steam.
5 x 5,000 m3 digesters.
Decanter centrifuge.
Ammonia stripper.
Reverse osmosis.
2011
Existing joint biogas plant
2012
Biogas and
separation plant
treating organic
waste. Producing
green energy.
Feeding system for
vegetable waste.
Project management.
Supervision of operations.
Sandager Skovgaard,
Denmark
Own pilot plant.
Lathen, Germany
Turnkey contract.
Agracor, The Azores
Turnkey contract.
Biokraft, Denmark
Turnkey contract.
Engineering,
operations.
running-in.
supervision
of
Start-up
and
Blaabjerg Biogas, Denmark
Turnkey contract. Supervision of
operations.
Fremont, Michigan, USA
Engineering, supervision of
operations, start-up and
running-in.
New 5,000 m3 digester and
new desulphurization system.
New 1.4 MW gas engine.
Total 3.0 MW
Increased capacity up to 600
tonnes manure, corn silage,
and organic waste per day.
350 tonnes/day.
Up to 28,000 Nm3 biogas/day
and 3 MW power output.
Renew Energy (www.renewenergy.dk ) is a
Danish biogas engineering/operations
company. Renew has successfully designed and
operated several silage biogas projects across
Europe and the United States.
The following selected references were
executed by Renew Energy A/S and/or by
Renew’s principals. Renew has 20 years of
experience in international biogas projects with
organic feedstock. In all projects, Renew was
responsible for start-up operations, running-in
and training of operators as well as ongoing
services for optimization of plant operation,
new feedstock etc.

5. EPC Contractor
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Tibbar has retained Layne as its EPC contractor for the anaerobic
digestion (biogas) and power generation components of the project
Layne-Christensen is a $1 billion global construction company with over
6,000 employees www.layne.com
Layne’s European partner, Entec, an Austrian biogas engineering
company, has built over 200 commercially operating silage AD power
plants. www.entec-biogas.com/en/
Layne has extensive experience with biogas projects and provides a full
wrap guarantee with one year of operation.

6. Diversification of Renewable Energy Portfolio
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Biogas generation from anaerobic digestion creates
permanent jobs
Wind and Solar provide intermittent power based on
meteorological conditions while biomass provides continuous
prime power.
Tibbar’s Biomass project diversifies USVI’s renewable energy
portfolio

7. Three components of a Biogas Operation
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Biomass projects require three components:
(1) Organic Feedstock
(2)
(3)
Anaerobic Digestion Facility (to create biogas from
the feedstock)
Power Generation (converting biogas to electricity)

8. Biomass/Anaerobic Digestion Facility

9. How a Biogas Facility Works
9

10. What is Anaerobic Digestion and how
does it produce power?
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In the absence of oxygen, naturally occurring bacteria breakdown organic
material (such as agricultural energy crops like Giant King Grass).
This results in the creation of methane and carbon dioxide, which
make up biogas. This process, called anaerobic digestion, occurs in
large enclosed tanks. The biogas is collected from the anaerobic
digestion tanks and is processed through a generator to produce
renewable electricity.

11. Is Anaerobic Digestion currently being used
as a Renewable Energy Source?
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For the last 30 years, Anaerobic Digestion
technology has commercially produced base load
renewable energy (primarily in Europe)
In Germany alone 3.8 million homes are fed
power from organic feed Anaerobic Digesters
Today over 10,000 plants operate in Europe in
small towns and agricultural based communities
The USVI’s fertile agricultural land and tropical
climate make it an ideal location for a biomass
project using agricultural energy crops.

12. Biogas Facilities in Europe
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13. Examples of Silage Power Plants in Europe
13

14. Tibbar’s Biomass Facility on 15 acres of VI Port
Authority’s property Land
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15. 3-D Site Plan of Biomass/Power Generation Facility
15

16. Interconnection to WAPA
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17. Site work has begun……
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18. Feedstock

19. USDA listed GKG as one of the Top 10 energy crops in 2012
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Tibbar has the 20 year exclusive license for this product in the USVI
The fresh cut silage would be cut on the farm and transported to and fed into the
AD tanks daily
Characteristics of Giant King Grass
• High crop yield (90-150 tons/acre/year)
• Drought resistant crop
• Sustainably grown, not a food crop
• Perennial grass
• Not genetically modified
• Not an invasive species
• Needs sunshine, warm weather & rain or irrigation-no freezing
• Fertilizer use is modest
• No pesticide
• Extensive bioenergy test data (2.7 cubic feet biogas/lb GKG)

20. Energy Crop Nursery in Operation on St. Croix
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Nursery Planted 9/28/12
Second Nursery Planted 1/25/13
USVI Senator Judi Buckley

21. Plant GKG every 10 to 15 years
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22. Giant King Grass Growing on St. Croix
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45 days of growth
after harvest

23. Silage Operations
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24. Silage Operations
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25. Farming with the Environment – Organic Fertilizer
25

26. Over 1,500 acres of Agricultural Land for Growing Giant King Grass
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27. Agriculture Feasibility Team
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Bioenergy Crops (www.bioenergycrops.com)
One of the leading third party auditing firms and
farm planning group for bioenergy crops
Dr. Tony Provin, Professor of Agronomy Texas
A&M
Dr. Provin has been working on bioenergy crops
in S. America, Brazil, and Caribbean for 20
years.
John Carroll, agronomist for VIA SPACE
Mr. Carroll launched GKG farm Hawaii and
Nicaragua, Africa, among others

28. Power Generation

29. Four 3 MW Generators
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Biogas generated through anaerobic
digestion will be flow to four 3 MW
Jenbaucher (GE) biogas generators.
(Four generators allows for rotation with
one spare available at all times.)
Generators will produce 3.9 kW per 1
cubic foot per minute of biogas at 42%
efficiency, 57% methane, and 550
BTU/ft3
Approximately 2,100 cubic feet per
minute (cfm) of biogas will produce 8.5
MW to cover WAPA power and parasitic
load
The Generators contain carbon filter gas
treatment, dehumidification system for
moisture removal of biogas, and H2S
filter media.
Jacket water will be used to heat
feedstock prior to anaerobic digestion
Emissions from the generator will be less
than 250 tons/year for all constituents.

30. Power Purchase Agreement (PPA)
30
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Tibbar’s PPA/Interconnection Agreement was fully executed by the USVI
WAPA on 7/24/13
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The PPA is for 7 MW over 25 years with a 5 year option
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The Commencement of Operations is June 30, 2015
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Tibbar’s project is the only proposed biomass renewable energy project in
the U.S. Virgin Islands.
Tibbar has also obtained Qualified Facility (for Small Power Generation)
approval from the USVI Public Services Commission.

31. USVI Government Partnerships

32. Project Benefits for the VI Department of Agriculture
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Tibbar will develop a water harvesting program with
multiple ponds on VIDOA land managing nearly 60
million gallons of run-off water.
The community gardening program will reap the
benefits from Tibbar farming operation through
shared irrigation water and organic fertilizer leading
to more consistent and higher yields at community
farms.
In addition, Tibbar will provide tillage services to
local farmers eliminating the current back log.

33. Additional Benefits to the Dept. of Agriculture
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The USDA cut the DOA hay program grants in 2012. Today it
is challenging for the DOA to produce hay for all 3 islands and
the program is at risk.
Tibbar will take over this commitment and supply the 1000
round hay bales per year for distribution through the DOA

34. Project benefits for VI Waste Management
Authority (WMA)
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Tibbar’s biogas facility provides an alternative outlet to
landfilling for several of WMA’s waste streams including:
 Fats Oils, and Greases (FOG)
 Food Waste
 Bio-solids
Using these streams as a feedstock for anaerobic
digestion is common practice in Europe
Tibbar’s agricultural operations provides a sustainable
outlet for the WWTP effluent as irrigation water.

35. USVI Governor’s Visit to Denmark
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On March 13, 2013 Governor John P. de Jongh, Jr.
met with Tibbar’s partner, Renew Energy, to discuss the
biogas project. The visit was part of the Governor’s
Economic Development Tour to promote business
opportunities in the USVI.

36. International Exposure
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Tibbar and the USVI
were featured in the
September 2013 Biomass
Magazine worldwide.

37. Overall Project Sustainability and Economic Benefits
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Brands St. Croix/USVI as sustainable/green island(s) directly benefiting tourism
Helps USVI reach its renewable energy goal of 22% by
2025 while producing 7 MW of base load cheaper,
cleaner power
Develop a commercial farming operation growing
energy crops that will spur an agricultural renaissance
Developed teaming agreements with VIWMA and DOA
on St. Croix
Creates over 35 high quality permanent jobs for the
next 25 years
Invests over $75 million in the USVI in 2013-2015