WinDS-H2 Model and Analysis · 2013. 9. 26. · WinDS-H2 Model and Analysis Walter Short, Nate...
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WinDS-H2 Model and Analysis
Walter Short, Nate Blair, Donna Heimiller, Keith ParksNational Renewable Energy Laboratory
May 27, 2005
Project AN4
This presentation does not contain any proprietary or confidential information
NREL/PR-560-38187
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Project Overview
•
Schedule–
Start Sept 2003–
End Oct 2004–
100% complete•
Total funding $225k–
DOE $225k–
FY04 $225k–
FY05 $200k new focus started April 2005
•
Technology Validation Barriers addressed–
C. Lack of a Macro-System Model
–
D. Stove-piped/siloed analytical capabilities
–
E. Transition to a H2
economy
•
Partners/collaborators–
H2A–
Utility Wind Interest Group–
UC Davis H2
System Modeling Workshop
–
NREL: Wind, GIS
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Objective
• Identify the regions in the United States that have the greatest potential for employing wind turbines to produce both electricity and hydrogen, and the conditions and time frame under which they are likely to become economical?
• Identify the opportunities for reducing system cost, by designing hybrid wind-
based systems specifically for production of electricity and hydrogen?
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Approach •
Developed a regional model that can simulate the market potential of both hydrogen and electricity from wind. Requires evaluation of both hydrogen and electricity as joint products
–
HyDS (Hydrogen Deployment Systems model -formerly WinDS-H2) is a multi-regional, multi-time-period model that:
•
Enables accurate tracking of H2 transport and electricity transmission from remote wind sites
•
Accounts for the intermittency of wind•
Considers competition with other distributed sources of H2 production –
distributed electrolysis and SMR
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HyDS Regions
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Technical Accomplishments
•
Completed the HyDS model to assess H2
-from-wind potential
•
Developed a base case and sensitivity cases•
Showed that:–
If program goals are met, H2
production at wind sites competitive in many areas of the country when
•
Wind close to load center•
High-quality, fully developed wind site, very remote from load–
Distributed electrolysis generally preferred over wind-sited electrolysis,
–
Distributed SMR, the preferred initial distributed production technology, wanes in later years with high gas prices
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Development of HyDS General Characteristics of HyDS
•
Linear program cost minimization for each of 26 two-year periods from 2000 to 2050
•
Includes hydrogen production from wind electrolysis, distributed
electrolysis, and steam methane reforming
•
Hydrogen used for transportation demands and/or on-peak electricity production
•
Hydrogen transport within and between regions•
Sixteen time slices in each year: 4 daily and 4 seasons•
5 wind classes (3-7), onshore and offshore shallow and deep•
Other generation technologies –
hydroelectricity, gas CT, gas CC, 4 coal technologies, nuclear, gas/oil steam
•
Existing and new transmission lines
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HyDS Representation of H2
Electrolyzer
H2 Storage
H2-fuel transport
Fuel cell
The Grid
Distr Electrolysis H2 SMR H2
City-gate Market
Fuel cell
H2 Storage
Hydrogen
Electricity
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Modeling Assumptions for H2
•
Hydrogen production and storage–
H2
produced only during off-peak electric load times–
Daily storage in wind turbine towers
•
Hydrogen for transportation fuel–
Competed on the basis of fuel cost
•
Produce up to regional demand level as long as you can make a profit at $2/kg at city gate (base case).
•
Hydrogen as a means of storing electricity–
H2
used in fuel cells only during on-peak times when the wind generators are not fully active, i.e. when there is transmission capacity available.
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Model Improvements Since 2004 HFCIT Program Review
•
Refined representation of distributed SMR•
Changed inter-region H2
transport from trucks to pipelines•
Incorporated cost synergisms with wind, i.e. in-tower storage, reduced cost of joint control system for wind and electrolyzer –
roughly 12% savings on electrolyzer and fuel
cell costs at windsite.•
Added possibility of grid electricity to power electrolyzer at a wind site
•
Added electrolysis/storage/fuel cells to HyDS in the general grid as a storage option
•
Changed county-gate markets to city-gate markets
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Base Case H2
Production* from Wind
* Kilotons/yr
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Capacities in the Base Case
0
5
10
15
20
25
2030 2040 2050
GW
e
Wind electrolyzersWind fuel cellsDist. ElectrolyzersDist. fuel cellsAdditional Wind
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Hydrogen Produced in the Base Case
0
1
2
3
4
5
2030 2040 2050
Billi
ons
of K
g
Wind-sited H2 fuel
Wind-sited H2 from grid power
Wind-sited H2 to fuel cells
Distr H2 fuel
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H2
from SMR
0
20
40
60
80
100
120
140
2000
2004
2008
2012
2016
2020
2024
2028
2032
2036
2040
2044
2048
H2
Prod
uctio
n (B
kg)
Cum Wind H2 fuel (Bkg)Distr Elec (Bkg)SMR (Bkg)Distr H2 to fcell (Bkg)
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Base Case Electricity Capacity
0
500
1000
1500
2000
2500
3000
2000 2010 2020 2030 2040 2050
Year
GW
e
Wind
nuclear
o-g-s
Coal-IGCC
Coal-new
Coal-old-noscrubCoal-old-scrub
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General Base Case Data Inputs
•
Fossil Fuel Prices – Source: AEO2004
•
Transportation fuel demand based on state gasoline demand and population; grows at 1.9%/year
•
Electric demands by NERC region –
1.8%/year -
Source AEO2004
0
5
10
2002
2010
2025
2050
GaspriceCoalprice
$/MBtu
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Base Case 2010 H2
Technologies Cost/Performance
Technology Capital Cost Efficiency %
Electrolyzer $150/kWe 80
Fuel Cell $400/kWe 50
Steam Methane Reformer
$4/kg-yr 70
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Modeling the Inter-regional Transport of H2
from Wind
y = 0.0023x + 0.381R2 = 0.9461
$0.00
$1.00
$2.00
$3.00
$4.00
$5.00
0 100 200 300 400 500 600 700 800 900
One-Way Delivery Distance (km)
Hyd
roge
n D
eliv
ery
Cos
t ($/
kg)
Compressed Gas Truck
Liquid H2 Truck
Pipeline (75 mi of 4-inch, remainder 8-inch)
Linear (Pipeline (75 mi of 4-inch, remainder 8-inch))
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Wind and Fuel Cell Capacities with Reduced Stationary Fuel Cell Costs
050
100150200250300
2020
2030
2040
2050
GW
e
Base WindDirect
FC200 WindDirect
FC200electrolyzers
FC200 FuelCells
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Conclusions•
Where wind resources are close to transportation fuel demand centers, electrolyzers at wind farms may be preferred to electrolyzers distributed close to the demand center.
•
Wind’s most substantial contribution may be as power to the grid to meet the additional demand for power required by distributed electrolyzers.
•
The use of electrolyzers and fuel cells at wind sites to store/shift wind generation from off-peak to on-peak periods occurs almost exclusively at remote, well-developed wind sites with good wind resource.
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Future Research and Model Improvements
•
Focus on other central hydrogen production and transportation technologies–
Add other central hydrogen sources, e.g. central SMR, coal gasification, biomass
–
Incorporate economies of scale in production for these new central sources
–
Optimize pipeline routes from these central production plants incorporating
•
pipeline economies of scale •
increasing capacity utilization after installation
•
Examine/identify scenarios with increased hydrogen production–
Collaborate with other scenario developers
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Producer -Delivered -
Supply Curve for H2 Supply from SMR
$0.00
$0.50
$1.00
$1.50
$2.00
$2.50
$3.00
0 200 400 600 800
H2 Production (kg/day 000s)
$/kg
Supply Curve by City
Tampa $1.06
Jacksonville $1.08
St. Petersburg $1.11
Miami $1.13
Lakeland $1.14
Fort Lauderdale $1.19
Boca Raton $1.27
Bradenton $1.28
Orlando $1.32
Gainesville $1.41
Sarasota $1.43
West Palm Beach $1.46
Tallahassee $1.50
Kissimmee $1.52
Melbourne $1.71
Pensacola $1.81
Fort Myers $1.84
Ocala $1.85
Fort Pierce $1.94
Key West $2.10
Naples $2.16
Leesburg $2.24
St. Augustine $2.40
Example H2 Regional Supply Curve
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Presentations•
American Wind Energy Association WindPower 2005, Denver CO, May 18 2005, poster
•
ITS-Davis Hydrogen Systems Modeling Workshop, September 20, 2004, Davis CA
•
15th
Annual U.S. Hydrogen Conference, April
27, 2004, Anaheim CA•
HFCIT Program Review, May 25, 2004
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Hydrogen Safety•
There are no hydrogen hazards associated with this project