Solar Energy in Alaska - Alaska Rural Energy Conference

Solar Energy in Alaska - Alaska Rural Energy Conference

Solar Energy in Alaska
AK Rural Energy Conference
Fairbanks, AK – April 27, 2010
P
Presented
t d by
b B
Brian
i Hi
Hirsch,
h Ph
Ph.D.,
D
Senior Project Leader – Alaska
Brian.hirsch@nrel.gov
(907) 299
299-0268
0268
Visit us online at www.nrel.gov
National Renewable Energy Laboratory Innovation for Our Energy Operated
for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by the Alliance for Sustainable Energy, LLC
Future
Major
j DOE National Laboratories

Pacific Northwest
INEL
N ti
National
lR
Renewable
bl
Energy Laboratory
Lawrence Berkeley

Lawrence Livermore


B kh
Brookhaven
Argonne


NETL
Oak Ridge
g
 Los Alamos
Sandia
 Defense
D f
P
Program L
Labs
b
 Office of Science Labs
 Energy Efficiency and Renewable
Energy Lab
 Environmental Management Lab
 Fossil Energy Lab

Ugashik Traditional Village Renewable Energy Project
Project Goals:
•Reduce generator run-time/minimize fuel use
•Determine optimum mix between wind and
solar
•Develop local technical capacity for RE
system installation & maintenance
•Launching off point for central utility or
distrib ted generation with
distributed
ith load clusters
cl sters
•Automate and experiment with “useful” dump
load controls
Project
Timeline
j
•Wind study 6/01 -6/02
SECAP formed - 2002
•SECAP
•Feasibility study - 2004
IGAP determination of support for
•IGAP
RE - 2005
IGAP Special Needs funding - 2006
•IGAP
•Wind turbine installation - 2007
PV Solar tracker installation – 2007/08
•PV
•BBEDC funding - 2007
Remote dump loads and monitoring
•Remote
installation - 2010 (hopefully)
UTV Renewable Energy
UTV Renewable Energy System Components
 2 – 2500 Watt Proven wind turbines (84 foot towers)
 1 – 2200 Watt photovoltaic system on dual axis tracker
 1 – 3600 Watt Outback inverter
 1 – 1375 amp‐hr HUP battery bank
 1 – 12000 Watt Lister diesel generator
 Remote control dump loads: water heater; space heaters
Tribal Communityy Hall,,
Offices, & Health Clinic
2200 Watt Photovoltaic System
on Dual Axis Tracker; Generator
B ildi
Building
Turbines,
Community & Equipment Buildings
Challenges
 Logistics & coordination
 Delivery of supplies &
equipment –
i
tried to save money
i d  NEPA process and other permitting/siting
 Merging/integrating old and new technology
M i /i
i ld d h l
 Variability of resources and storage (wind, solar, batteries)
 Coordinating multiple funding sources (EPA, BBEDC, DOE/NREL)
/
)
Recent & Future Improvements
 New inverter (one quit)
 New “mate” (system integrator)
 System monitoring
 Tower lift system
 New diesel generator
 Remote control dump load (result in more fuel savings)
i )
Monitoring Performance
Monitoring Performance
Current RE Performance Monitoring Effort: UTV, NREL, ACEP, AEA, Specialty
Electric
Focus: What is the proper combination of wind/solar?
How much diesel is displaced?
To Track or Not to Track?
Cold Climate Housing Research Center – 4 different PV arrays
Solar array type
SB3000/A1/JXC 180
SB3000/A2/SW 165
SB3000/A3/Sharp 170
SB3000/A4/SW 165
kWhrs 2009
2156.52
3714 24
3714.24
3782.86
2557.36
12210.98
kW
2.16
2 64
2.64
2.72
2.64
Trking Si
Y
Mono
Y
Mono
Y
Poly
N
Mono
kWhrs norm’ed Annual Cap Factor
998.3888889
11.40%
1406 909091
1406.909091
16 06%
16.06%
1390.757353
15.88%
968.6969697
11.06%
In Fairbanks, dual axis tracking results in ~ 40%
increase in capacity factor
factor, all else being equal
Data courtesy CCHRC; Analysis courtesy Rich Stromberg, AEA
Mono or Polycrystalline?
Panel
Technology
Sharp poly
Poly
Kyocera KD215GX-LPU
KD215GX LPU
Poly
Kyocera KD135GX-LPU poly
Poly
Solar World mono
Mono
Sharp mono
Mono
Sharp mono
Mono
Sharp poly
Poly
Sharp mono
Mono
Solar World mono
Mono
Solar World mono
Mono
Sharp mono
Mono
Solar World mono
Mono
Technology
Mono
Poly
Watts
176
215
135
230
230
230
224
175
230
175
175
175
Price
$440
$623
$415
$724
$729
$732
$720
$581
$793
$634
$670
$745
$/watt
$2.50
$2.90
$3.07
$3.15
$3.17
$3 18
$3.18
$3.21
$3.32
$3.45
$3.62
$3.83
$4.26
Average $/watt
$3.50 $0.58 Delta between mono and polycrystalline PV
$2.92 19.70% % delta
Analysis courtesy Rich Stromberg, AEA
PV Polycrystalline Output in Nome:
2008‐2010
Analysis courtesy Rich Stromberg, AEA
Looking Ahead
 Renewables‐focused village utility
 Continuing energy awareness, conservation, efficiency improvements
 Village‐wide and Regional impact through demonstration outreach education
demonstration, outreach, education
For More Information
 National Renewable Energy Laboratory www.nrel.gov
 Alaska Energy Authority www.aidea.org/AEA/
 University of Alaska ‐ Alaska Center for Energy and Power www.uaf.edu/acep
 Cold Climate Housing Research Center www.cchrc.org
C ld Cli
H i R
h C
h
 University of Alaska Cooperative Extension Service www uaf edu/ces/
www.uaf.edu/ces/