flexible power generation enabling wide...
TRANSCRIPT
Flexible Power GenerationEnabling Wide Integration of RES
Kenneth Engblom,
Marketing Director, Power Plants
Wärtsilä Corporation
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
The European Power Generation Strategy Summit& Power Project Financing and New Technologies Forum
3rd-5th December 2012 | Four Seasons - Prague | Czech Republic
Wind chasing in Colorado, US
Coal power plants
Load
Wind generation
Gas generation
Plains End 1 & 2 power plants
Flexible generation
In systems with high wind penetration, thermal power plants face
• Lower average load & more part load operation
• Faster ramp up’s and down’s
• More starts and stops
Grid operator data from:
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
This is how it used to be!
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Production by technology
NUCLEAR
COAL
CC GT
OC GT
This is where it is heading!
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SOLAR
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FLEX
GEN 2
FLEX
GEN 1
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Commercial challenge
NUCLEAR
COAL
FLEX
GEN 2
SOLAR
WIND
FLEX
GEN 1
Conventional Plants-shorter Operating hours
-reduced thermal efficiency
-increased wear & tear
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Technical challenge
NUCLEAR
COAL
FLEX
GEN 2
SOLAR
WIND
FLEX
GEN 1
Quick Starts
& loading
Quick Stops &
de-loading
Part load & Spinning reserves
Smart Power Systems
Commercial challengeHow can market support investments in flexibility ?
How to differentiate between capacity and adequacy?
Regulation/Subsidy vs. market driven ?
Technical ChallengeWhat type of flexibility do we need ?
How is the flexibility technically achieved ?
How to maintaining high efficiency and low emissions?
How to avoid increasing Wear & Tear ?
Reliable Sustainable
Affordable
Smart
Power
System
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Options to make Power Systems smarter?
Demand Side
Management(Smart Grid)
Energy StorageInterconnection(Larger Smart Grids)
Smart
Power
Generation
Smart
Power
System
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
What makes Power Generation Smart?
• High efficiency
– Immediately & at any load
• Fuel flexibility
– Gas , Diesel, HFO, Bio Fuels, Hydrogen
• Reliable, Dependable and committable
– Multiple generating units & Firm capacity
• Operate on multiple markets
– Energy markets (kWh)
– Capacity markets (kW)
– Ancillary services markets (+/ - kW / s)
• Optimum plant location close to
consumers
– CHP opportunities
• Fast access to income through
fast-track project delivery
– Modular design, Step-vise investments
• Competitive O&M costs
– No impact of varying running conditions
Fuel
FlexibilityOperational
Flexibility
Energy
Efficiency
Smart
Power
Generation
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
What does this technology look like?
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Modern Gas Engines – Superior flexibility
From Stand-still:
Power out in <60s
From stand-still to 100 % load in less than 5 minutes
From 100 % - to total stop in 1 minute
While running:
From 0 – 100% load in <60s
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Combustion engine fast starting, loading and unloading
750
600
450
300
150
00 30 60 90 120 150 180 210 240 270 300
seconds
Speed acceleration (25s)
Synchronisation (<5s)rpm
80
70
60
50
40
30
20
10
0
90
100
Load %
330
rpm
Load
Prelubrication (30s)
Loading (< 4 minutes)
Only 5 minutes from start command to full load
Engines in HOT STANDBY mode, i.e. preheated (HT water temp. >70 °C)
Only 1 minut from full load to stop
After only 5 minutes, loading again
* Wärtsilä 34SG C2 50 Hz/750 rpm
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Multiple Units (Efficiency)
• Highest efficiency over wide plant
load range 10-100%
Engine 10Engine 9Engine 8Engine 4Engine 3 Engine 6
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Multiple Units (Step Wise investments)
Power Generation based on multiple engines
2013- 100MW
Simple Cycle
2015 -200MW
Simple Cycle
2017 -330 MW
Combined Cycle
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Fuel flexibility
• Fuel flexibility is important in locations where:
– Gas infrastructure becomes available later
– Gas supply interruptions occur
• Wärtsilä DF (dual fuel) engines can operate on a wide variety of fuels, including:
– Natural gas (NG), Liquified natural gas (LNG)
– Light fuel oil (LFO) , Heavy fuel oil (HFO) & Liquid biofuels (LBF)
• DF engines can transfer from gas to liquid fuel operation, or vice versa, during
operation, at any load, instantaneously and automatically
• Sangachal, Azerbajan
• 18X18V50DF, 308 MW
• Tri Fuel: Natural gas & LFO & HFO
• Year of completion: 2009
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Gas combustion engine, 50SG
Highest efficiency existing today
among all simple cycle power plants
50 Hz/500 rpm 18,3 MW Power (e)
60 Hz/514 rpm 18,8 MW Power (e)
Heat rate 7411 kJ/kWh *
Electrical efficiency 48.6 % *
*
Heat rate and electrical efficiency at generator terminals, including engine driven pumps, ISO 3046
conditions and gas LHV > 28 MJ/Nm3. Tolerance 5%. Power factor 0.8. Gas Methane Number > 80.
Nm3 defined at NTP (273.15 K and 101.3 kPa).
Example of a 480 MW combined cycle power plant with 24 generating
units of Wärtsilä 18V50SG and 1 steam turbine
With the Flexicycle™ solution the
advantages of a flexible simple cycle plant
are combined with the superb efficiency of
a combined cycle plant
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
WÄRTSILÄ 500 MW FLEXICYCLE
Combustion Engine:From standstill to Power Out in 1 min
10- 90% load in < 1 min 400MW in 1 min!
Steam Turbine:90-100% Load in < 15 min 100MW in 15 min
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
TIME: 0 Min
LOAD: 0 %
Efficiency: 0 %
-> 1 min
-> 10%
-> 30%
-> 2 min
-> 90%
-> >48%
-> 17 min
-> 100%
-> >50%
Dispatchers Dream:
0
20
40
60
80
100
Output (%)
SMART POWER GENERATION - VALUES & FEATURES
VALUE
• Grid stability
support
• Ancillary Service
market
VALUE
• Competitive life
cycle generation cost
• Any output, same
generation cost
1
2 3
4
5
1 FASTSTART 2 BASELOAD3 LOAD
FOLLOWING
4 LOW-LOAD
OPERATION5 FAST STOP
FEATURES
• Power to grid in
<1min
• 5 min to full power
• Start up efficiency
FEATURES
• Highest simple
cycle efficiency
• Multi unit -> high
firm capacity
• Flexicycle ™
VALUE
• Wind balancing
• Ancillary Service
market
FEATURES
• Part load efficiency
unaffected
• No EOH cost for
cycling
VALUE
• ”low load” = No load
• Not running when
no revenue
FEATURES
• 1min shutdown
• No minimum down
time
• Zero fuel cost
• Zero emissions
VALUE
• Not running when
no revenue
• PV enabler
FEATURES
• 1min shutdown
• No minimum up
time
• No EOH calculation
ALL in ONE !
EOH: Equivalent Operating Hours
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Do these Smart Power Generation type
plants exist?
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Some Natural Gas Power Plant references……
STEC Pearsall, USAOutput: 202 MW
Fuel: Natural Gas
Prime movers: 24 x Wärtsilä 20V34 SG
Operating mode: Wind following
Start of commercial operation: 2009
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
230 MW, USA
Plains End I and II, Colorado, USAFuel: Natural Gas
Prime movers: 20 x Wärtsilä 18V34 SG, 14 x Wärtsilä 20V34SG
Output: 231 MW
Operating mode: Peaking / Wind following
Year of completion: 2001 & 2006
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
163 MW, USA
Humboldt Bay Generating Station, California, USAFuel: Dual (Natural Gas & LFO)
Prime movers: 10 x Wärtsilä 18V50DF
Output: 163 MW
Operating mode: Flexible Baseload
Year of completion: 2010
Scope: EPC
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
260 MW, Estonia
Kiisa Power Plant, EstoniaFuel: Dual (Natural Gas & LFO)
Prime movers: 27 x Wärtsilä 20V34DF
Output: 250 MW
Operating mode: Grid stability (200 operating hours per year)
Year of completion: Planned 2013
Scope: EPC
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation
Conclusion, Smart Power Generation
www.smartpowergeneration.com
Reliable Sustainable
Affordable
Smart
Power
System
Enable!
Fuel
Flexibility
Operational
Flexibility
Energy
Efficiency
Smart
Power
Generation
Making Power Generation Smarter!
EPG Summit, Prague, Dec 4 2012 Kenneth Engblom , Wartsila Corporation