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Distributed Energy Resources Site Visits. Presented by Bevan R. Smith Jr., Director Virgin Islands Energy Office September 23, 2006. A Presentation for the Decisionmakers. Virgin Islands Water and Power Authority and the Virgin Islands Energy Office. Distributed Generation.

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Distributed energy resources site visits

Distributed Energy Resources Site Visits

Presented by

Bevan R. Smith Jr., Director

Virgin Islands Energy Office

September 23, 2006


A presentation for the decisionmakers

A Presentation for theDecisionmakers

Virgin Islands Water and Power Authority

and the

Virgin Islands Energy Office


Distributed generation
Distributed Generation

  • small scale environmentally friendly technologies

  • installed on and designed primarily to serve a single end-user’s site

  • any generation built near to a consumer’s load regardless of size or energy source


Virgin islands dg public policy goals
Virgin Islands DG Public Policy Goals

  • Secure Partnership with WAPA

  • Research utilization of renewable/alternative energy resources as Distributed Energy Resources

  • Conduct workshops for WAPA governing Board, the PSC and general public

  • Development and Implementation of an interconnection policy for the Territory


Formation of dg team
Formation of DG TEAM

Jim GibsonMay Cornwall, Guy Lacombe Bevan Smith Greg Willocks Melton Smith

Park Service WAPA FP&L VIEO WAPA WAPA


Usdoe funds and participates
USDOE funds and participates

David Waldrop (USDOE)

Joins team at utility sponsored sites



Virgin islands dg public policy goals1
Virgin Islands DG Public Policy Goals

  • Research utilization of renewable/alternative energy resources as Distributed Energy Resources


Viable dg technologies
Viable DG Technologies

  • FUEL CELLS

  • MICROTURBINES

  • PHOTOVOLTAIC SYSTEMS

  • WIND


Birch state park
Birch State Park

  • 5 kW grid tied fuel cell

  • Unit contains two major components:

    The fuel processor and power conditioner


Findings on the fuel cell unit plug power model su 1
Findings on the Fuel Cell unit Plug Power Model SU-1

  • the fuel reformer processes a hydrocarbon fuel into a hydrogen rich gas

  • the power conditioner converts the low voltage current produced by the fuel cell to a high voltage DC

  • An inverter transforms the high voltage DC to 120 or 240 volts AC

  • Batteries in the power conditioner ensure sufficient coverage for power surges

  • consider the more cost effective 200 kW model that uses a phosphoric acid membrane


Findings on the fuel cell unit plug power model su 11
Findings on the Fuel Cell unit Plug Power Model SU-1

  • Provides 5 kW to park operations office

  • Utilizes natural gas as an energy source (model Genesis 5C utilizes propane gas)

  • H electrons and protons separate through PEM the (membrane) system

  • Power produced per unit of energy has an efficiency rating between 30 – 55%

  • An interconnection policy exists

  • Grid tied utilizing dual metering system


Problems within fuel cell unit
Problems within Fuel Cell unit Plug Power Model SU-1

  • system is only about 25% efficient

  • water purification problems caused by algae

  • rodents/insects have chewed wiring

  • costs upwards of $100,000.00

  • operating cost is $7.00/mbtu

  • inverter trips on power output efficiency, unstable or loss of grid power,low gas flow, high temperature and low water


Dg team visits st thomas university
DG TEAM VISITS Plug Power Model SU-1St. Thomas University

  • A stand-alone PV power system provides 5kW to the University.

  • The Florida Power and Light and St. Thomas University have a Cooperative Fuel Cell and a Solar PV Project


Hillsborough landfill
Hillsborough Landfill Plug Power Model SU-1

  • Tampa Electric Company maintains a 30 kW Capstone microturbine at this condemned landfill site


Hillsborough landfill1
Hillsborough Landfill Plug Power Model SU-1


Noteworthy findings on microturbine on landfill
Noteworthy Findings on microturbine on landfill Plug Power Model SU-1

  • site is UL approved for interconnection

  • process takes 2-3 % of methane gas from the ground

  • filters remove large particulates

  • refrigerator gas dryer adjusts the temperature

  • gas equipment is $70,000 and $30,000 for the microturbine


18 kw grid tied photovoltaic system
18 kW grid-tied photovoltaic system Plug Power Model SU-1

TECO

Subsidizes this system that utilizes 100% of solar energy produced


Findings at tampa electric company sponsored dg projects
Findings at Tampa Electric Company Plug Power Model SU-1Sponsored DG projects

  • TECO is 3rd largest investor-owned utility

  • Produces 4000 MW daily using 99% coal

  • Believes economics for DG systems are unjustifiable

  • Established an interconnection policy for small systems 10kW<

  • Enforces dual metering arrangement

  • Disallows net metering


One hundred fifty 120 watt panels
One hundred fifty 120-watt panels Plug Power Model SU-1



University of south florida s parking electric car charging station
University of South Florida’s Plug Power Model SU-1Parking/Electric Car Charging Station

  • Provides power for charging station

  • Includes a switching system that allows batteries to be charge according to their need

  • Excess is fed to the campus grid only

  • USF conduct experiments on three semiconductors for pv cells: silicon, copper indium gallium di-selenide and cadmium telluride.

  • Seeks to get Hydrogen from non-fossil fuel source such as a by-product of fertilizer



Findings at the island school
Findings at the Island School system.

  • 16 kW solar array and a 7.5 kW wind turbine provides 100% of school’s power

  • Solar water heaters assist in keeping school within its consumption limits

  • Hybrid system operates the same as pv except you have a wind component

  • A constructed wetland, camouflaged as a floral garden, aids in water resource management


Florida solar energy center
Florida Solar Energy Center system.

  • Review Industry-accepted Standards

  • Photovoltaics Economics

  • PV Sytems design review program

  • Inverter non-islanding

    feature Tests


Development of an interconnection policy
Development of an interconnection policy system.

  • Investigate interconnection standards

    UNDERWRITERS LABORATORY (UL) 1741

    INSTITUTE OF ELECTRONICS AND ELECTRICAL ENGINEERS (IEEE) 929 & 1547

  • Investigate site permitting and design

  • Investigate building energy codes


Florida solar energy center1
Florida Solar Energy Center system.

Photovoltaics Economics






Importance of dg research
IMPORTANCE OF DG RESEARCH system.

  • Implementation of Act No. 5006 which amended Section 1, Title 30, of the Virgin Islands Code. This allows small power production facilities to interconnect with the local electric utility and sell excess generated electric energy to that utility.

  • To pilot ten photovoltaic grid-interconnected small power production systems for grantees who submitted innovative renewable energy proposals


Importance of dg research1
IMPORTANCE OF DG RESEARCH system.

  • Assist the PSC determining such requirements relative to the minimum size, fuel use and efficiency of a “Qualifying Cogeneration Facility”.

  • Assist WAPA in addressing safety issues pertaining to interconnectivity to the utility grid


Piloting grid tied pv power systems of vieo grantees partners
Piloting Grid-tied PV Power Systems of VIEO Grantees/Partners

  • Innovative Renewable Energy Grant recipients = 10kW

  • Nature Conservancy = 8 kW

  • Stefan Larsen = 6.5 kW (hybrid)

  • Estate Concordia Eco = 5kW


Bamboula haven
BAMBOULA HAVEN Grantees/Partners

  • 1 KW PV SYSTEM OPERATES EQUIPMENT IN THE MULTI-PURPOSE ROOM OF THE CENTER


Werner wernicke s inverter console
WERNER WERNICKE ‘S INVERTER CONSOLE Grantees/Partners

  • Sharp 165W (24 V nominal): 2Sx3P

  • Xantrex 5548 with GTI

  • Xantrex Combiner box

  • Xantrex C40 Charge Controller

  • Outback mounting panel

  • Rolls 4 V, 546 Ah, 12Sx1P


Lloyd william s battery bank
LlOYD WILLIAM’S BATTERY BANK Grantees/Partners

  • Batteries provided 26 kWh of energy storage


Edwin hatchette s rack mounted pv panels
EDWIN HATCHETTE’S RACK MOUNTED PV PANELS Grantees/Partners

  • Sharp 175W (24 V nominal)

  • 2Sx3P

  • Xantrex 5548 with GTI

  • Xantrex Combiner box

  • Outback mounting panel

  • Rolls 4 CS 17PS 4 V, 546 Ah, 12Sx1P


Roof mounted pv panels
ROOF MOUNTED PV PANELS Grantees/Partners


Brian emerich s tilted array
BRIAN EMERICH’S TILTED ARRAY Grantees/Partners

  • Sharp 175W (24 V nominal): 2Sx3P

  • Xantrex 5548 with GTI

  • Xantrex Combiner box

  • Outback mounting panel

  • MK 8G4DLTP 12 V, 183 Ah, 4Sx1P



Dual meters increase costs
DUAL METERS INCREASE COSTS Grantees/Partners

  • Electricity drawn from WAPA appears on the “IN” meter and Electricity sent to WAPA’s grid appears on the “OUT” meter


Mt victory camp
MT. VICTORY CAMP Grantees/Partners

  • PV Module: Kyocera KC-50

  • PV Array: 4S x 5P


Inverter console and battery bank
INVERTER CONSOLE AND BATTERY BANK Grantees/Partners

  • Battery: Deka Marine Master

  • Battery Bank: 4S x 3P

  • Inverter: Xantrex 4048 w/ GTI


Curtis johnson
CURTIS JOHNSON Grantees/Partners

  • Mobile 1 kW unit with Grid Tie capabilities


Solar water heater collector
Solar Water Heater Collector Grantees/Partners

  • Solar thermal energy for water heating is commercially viable

  • WAPA look into the bulk purchase of solar water heaters and market them as a replacement for electric water heaters


Wind energy case study
WIND ENERGY CASE STUDY Grantees/Partners

  • St. Thomas’ diurnal wind speed range from 14.5 mph to 16.9

  • St. John’s is 12.3 mph to 13.2 mph

  • St. Croix’s is 15.8 to 16.9 mph


Tilt down type machines or fixed machines
Tilt-down type machines or fixed machines Grantees/Partners

  • A determination of the added cost of hurricane risk mitigation for wind power development needs to be conducted


Stand alone hybrid system on st croix s east end
Stand Alone Hybrid System on St. Croix’s East End Grantees/Partners

  • Stefan Larsen and Jan Mitchell anxiously awaits Net Metering to store renewable energy on the grid and run A/C units at nighttime


Dg team s next steps
DG Team’s Next Steps Grantees/Partners

  • Coordinate workshops for WAPA governing Board and the PSC on behalf of the Executive Director

  • Identify and conduct training for local Building Inspectors

  • Immediate approval for the Implementation of an interconnection agreement for the Territory

  • Produce videos, reports, and workshop packages for distribution


Thank you
THANK YOU Grantees/Partners

U.S. VIRGIN ISLANDS DISTRIBUTED GENERATION

Team Member

Bevan Smith Jr.

Director

VI Energy Office


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