Gas turbine efficiency and power upgrade Vuosaari power plant 2011

Siemens Energy Day, December 15,

Dipl. Eng. Christoph Sorgenfrey E S SF REU 242

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Energy Day 2011, Helsinki

Part 1:

Gas Turbine Modernization V94.2 / SGT5-2000E

Christoph Sorgenfrey

Marketing Service Agreements/GT Mods/LTE E-

class GT

Contents

Market Challenges & Modernization Potential

SGT5 2000E Power Plants 4

Si3D Benefits 6

Advantages of Power Limit Increase (PLI) 9

Vuosaari Major Outage 2011 on GT5 12

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Market Challenges for

V94.2 / SGT5-2000E Combined Cycle Power Plants

High Efficiency

High Availability High Power Output

• Fuel price

• Fuel consumption

• “Green MW”

• Electricity price

• Baseload/

Peak power

• Hot gas parts life

• Refurbishment

• Maintenance intervals

High Flexibility

• Start up capability

• Dual Fuel use

• Grid requirements

• Min Load decrease

Increase

operating range

Low Emission

• NOX & CO limits

• CO2 „trading“

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Example for Modernization Potential of

V94.2 / SGT5-2000E Combined Cycle Power Plants

Modernization potential: *

Up to 9% (40 MW) power output

increase

Up to 11% (50 MW) additional

power output increase with WetC

1% points or more

combined cycle efficiency

improvement

Significant operating cost reduction

Cutting NOX & CO2 emissions

* Subject to specific technical plant evaluation,

expected values with test tolerance @ ISO condition.

Reference: 15 year old CCPP (2x1) rated at 450 MW

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Energy Day 2011, Helsinki

Part 1:

Gas Turbine Modernization V94.2 / SGT5-2000E

Christoph Sorgenfrey

Marketing Service Agreements/GT Mods/LTE E-

class GT

Contents

Market Challenges & Modernization Potential

SGT5 2000E Power Plants 4

Si3D Benefits 6

Advantages of Power Limit Increase (PLI) 9

Vuosaari Major Outage 2011 on GT5 12

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Flexibility of Si3D on turbine stages 1 to 4

More than 1.5 %-pts. gas turbine efficiency

improvement on average

at constant power output fuel cost reduction of 2,5%

and CO2 reduction by 20.000 t p.a.

or more power at constant fuel

consumption = “Green MW”

Extra potential benefits:

extended maintenance cycles

longer service life

more starts per interval

Increased Power Limit* >> 173MW

Siemens innovative 3-Dimensional blades

Technology for higher efficiency and reduced CO2 emissions

Si3D upgrade investment provides fast customer payback

* To be released after testing

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

What does Green Power mean in case of the Si3D upgrade? • CO2 free

• without additional fuel

• it does not create additional operating costs

• equivalent to environmental effect of four 4 MW class wind turbines at same availability

“Green Power” of Si3D upgrade stage 1 to 4

+4 MW @ ~99% availability 16 MW @ ~25% availability

Value of

Green MW

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Energy Day 2011, Helsinki

Part 1:

Gas Turbine Modernization V94.2 / SGT5-2000E

Christoph Sorgenfrey

Marketing Service Agreements/GT Mods/LTE E-

class GT

Contents

Market Challenges & Modernization Potential

SGT5 2000E Power Plants 4

Si3D Benefits 6

Advantages of Power Limit Increase (PLI) 9

Vuosaari Major Outage 2011 on GT5 12

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Power Limit Increase (PLI) – Benefits:

Power increase also on cold days Upgrade Potential of V94.2(3)

Ambient Temperature

Pow

erReference (V94.2(3))

V94.2(3) + Si3D 1-4

(including PLI)

V94.2(3) + Si3D 1-4

(including PLI /

TT1=1065°C)

Gas T

urb

ine P

ow

er

Ou

tpu

t [M

W]

Compressor Inlet Temperature [°C]

Reference V94.2(3) @ ISO conditions

V94.2 with Si3D 1-4 & PLI @ reference level

V94.2 with Si3D 1-4 & PLI @ reference +15K

173 MW

> 180 MW

Additional benefit of

power limit increase

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Relative Exhaust Energy

90

92

94

96

98

100

102

104

Ambient Temperature

Exh

aust

En

erg

y [%

]

Reference (V94.2(3))

V94.2(3) + Si3D 1-4

(including PLI)

V94.2(3) + Si3D 1-4

(including PLI /

TT1=1065°C)

Compressor Inlet Temperature [°C]

Power Limit Increase (PLI) – Benefits:

Exhaust Gas Energy

Reference V94.2 @ 1060°C*

V94.2 with Si3D1-4 & PLI @ 1065°C*

V94.2 with Si3D1-4 & PLI @ 1080°C*

Exh

au

st

En

erg

y [

%]

* Turbine inlet temperature TT1iso

Advantage for district heating / process steam:

More exhaust gas energy at cold ambient temperatures

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

After the validation test in 2012 all V94.2 / SGT5-2000E with

Si3D stages 1 to 4 will get the release for increased maximum power:

More power also on colder days

More potential power for peak load applications

More exhaust gas energy for district heating

Increased potential for flexible grid response

Increased Combined Cycle efficiency

+ Si3D Efficiency benefit over the entire ambient temperature range

Power Limit Increase (PLI) – Benefits:

Summary

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Energy Day 2011, Helsinki

Part 1:

Gas Turbine Modernization V94.2 / SGT5-2000E

Christoph Sorgenfrey

Marketing Service Agreements/GT Mods/LTE E-

class GT

Contents

Market Challenges & Modernization Potential

SGT5 2000E Power Plants 4

Si3D Benefits 6

Advantages of Power Limit Increase (PLI) 9

Vuosaari Major Outage 2011 on GT5 12

Christoph Sorgenfrey E S SF REU 242 Marketing Service Agreements / GT Mods

Outlook for the PLI winter test

.....we hope it will be a cold

finnish winter!