Power-GEN Middle East Flexibility In A Changing Fuel Landscape

Power-GEN Middle East
Flexibility In A Changing Fuel
Landscape
Jeffrey Goldmeer, Ph.D. and Aileen Barton
Abu Dhabi, UAE | 12-14, October 2014
© 2014, General Electric Company. Proprietary information. All rights reserved.
GE Power & Water
© 2014, General Electric Company.
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All relative statements are with respect to GE technology unless otherwise noted.
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Agenda
• Market dynamics and outlook
• Fuel flexibility and economic drivers
• Case studies
• Summary
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© 2014, General Electric Company. Proprietary information. All rights reserved.
Growing economies … what is the economic
cost of traditional power generation?
Compound average annual
growth in energy use (‘85-’10)
On average, 1.3 bbls of oil =
1MWhr of electricity;
Opportunity cost of 0.139
USD/kWhr
Source: A roadmap for Renewable Energy in the MENA, Jan 2014
© 2014, General Electric Company. Proprietary information. All rights reserved.
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Hydrocarbons to electricity … what is available
to meet the demand?
Hydrocarbon substitution
predicted in the OECD
(Organization for economic co-operation and
development)
Source: BP 2013
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Momentum is building … driven by cost and
availability
2013 Global GW
30
CN shale
U.S. shale
25
Russia
Shale &
CBM
CN LNG
Poland &
EU shale
China
CBM &
shale
KSA
20
GW to fuel
spec
15
Algeria
shale
India
shale
10
Columbia
shale
Indonesia
CBM & shale
CBM to
LNG
Argentina shale
S.Africa
shale & CBM
Australian
Shale
GW with
Non-Trad
fuels
5
0
H Class
F Class
B/E Class
Tight oil shale
Unconventional gas
Unconventional gas and oil sources
Over 50% of new capacity is evaluating “opportunity fuels”
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Fuel flexibility … key to economics
Sour gas
$16.5/MMBTU
$3.5/MMBTU US
$28/Mt
$2.4/US gal
$106/bbl
$860/Mt
$890/Mt
$107/bbl
$386/Mt
$108/bbl
$622/Mt
… with little or no change in the availability and reliability associated with
traditional natural gas operated units
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Case Studies
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Using natural gas variation to an advantage
Not all natural gas is the
same
• MWI
• Price
Variation causes
• Multiple fields into single
pipeline
• Blending NG, shale gas,
LNG due to economics
• Source … regional profile,
transportation costs,
availability
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Accommodating natural gas variation
1150
Heating value
(Btu/SCF)
1
The gas turbine handles the
variation without trips, emissions
deviations or performance
shortfalls
Monthly gas heating value variability
(May 1-31, 2013)
1000
Source: Pipeline and Natural Gas Journal, July 2011
Output
remains
stable
~70 Btu/SCF
(~7% MWI)
change in ~30
min
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Gas turbine response during rapid fuel Wobbe
transient
Event overview
46.5
MW I
45.5
9.0
MW I
8.8
NOx
8.6
45.0
8.4
44.5
8.2
44.0
8.0
43.5
7.8
43.0
7.6
42.5
7.4
42.0
7.2
41.5
11:24 AM
NOx (ppm @ 15% O2)
46.0
7.0
11:38 AM
11:52 AM
12:07 PM
12:21 PM
Time
90
80
47
Frequency 1
Frequency 2
MWI
46
46
70
45
60
45
50
44
40
44
30
43
20
43
10
42
0
11:24 AM
42
11:38 AM
11:52 AM
12:07 PM
12:21 PM
MWI
100
Combustion Dynamics
Amplitude (% Target)
1
Can the gas turbine handle the
variation without trips, emissions
deviations or performance shortfalls
?
• LNG terminal less than 200 km from
2x7F.03combined-cycle power plant
• LNG storage tank originally purged
with CO2 … not all CO2 removed before
LNG was introduced to tank
• CO2 / LNG entered pipeline and
reached site at 11:24 am
• Initial Modified Wobbe Index (MWI)
value decreased 5.6% due to presence
of CO2 in fuel
• MWI increased 8.7% due to LNG
• Maximum rate of change in MWI
reached 9.5%/minute
• The control system enabled with
AutoTune maintained acceptable
emissions and dynamics levels
throughout event … no runback/trip
Time
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Evaluating natural gas variation … supply and
economics
MENA natural gas production will exclusively
serve domestic needs (except for LT contracts)
…. Is it enough? What is the subsidy level?
Will MENA turn to US shale?
2
Source and availability?
3
Economics … what is variable
composition worth?
LNG capacity additions
Example: 2x7F.03 gas turbines in CC (ISO day
operation) comparing LNG to LNG/shale mix
1.
2.
3.
4.
30% lower “delivered’ shale gas price
Shale supplements 25% of current
consumption
LNG price at $15/MMBTU (contract price)
Plant performance (GTCC) remains equal
# of trains
Annual savings at baseload operation: $29MM
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What’s next ? 100% ethane, propane and more
Ethane example: what’s changed ?
• Ethane price collapsed to
methane price
• Improved GE ethane combustion
capability up to 100% ethane in
F-class GTs
What’s the value?
Blended fuel savings $MM
• Run profile
• NG Fuel
• Peak Power
Pricing
Ethane potential
Ethane blend recast
• 25% blend
• Ethane 40% less expensive
than NG
• Move to first
dispatched
• Net profit based on
incremental power +
lower fuel price
$9MM/year avg. customer value potential
© 2014, General Electric Company. Proprietary information. All rights reserved.
• Based on gas turbine simple
cycle ISO output and heat rate
• 8000 hrs/yr all ISO’s except
MISO
• 7000 hrs/yr MISO
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Summary
• Regional trends,
configuration/operational constraints
and fuel availability will continue to
drive the power generation industry
towards non-traditional fuels
• Gas turbines have demonstrated
flexibility and economics to operate on
a wide variety gaseous and liquid fuels
• GE has successfully tested/operated
many of these fuels and decreased
operational and capital expense
impacts to the heavy duty gas turbine
… goal is for performance like it is
operating on natural gas
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