peaking plant bayonne (nj/usa) - siemens energy sector · pdf file9/25/2016 ·...

Peaking plant Bayonne (NJ/USA) A flexible solution to support a volatile grid based on aero-derivative turbines

Tom Scarinci & Tobias Aschoff

siemens.com/gasturbines Unrestricted © Siemens AG 2017

June 2017 Tom Scarinci & Tobias Aschoff / Siemens AG Unrestricted © Siemens AG 2017

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Case study – Bayonne Energy Center – Key facts

Owner (NYSE:MIC) Macquarie Infrastructure Corporation

Operator EthosEnergy Group

• Eight aero-derivative Siemens SGT-A65 TR* with 512 MW generating capacity, in operations since 2012

• Currently building additional 132 MW (two more SGT-A65 TR) on adjacent land owned by IMTT

• Also constructing additional gas lateral to Spectra TETLP M3 pipeline (already connected to Transco Z6)

• Dual fuel capable with liquid fuel connection from Buckeye Terminal

• Provides peak power to New York City via a 6.5-mile submarine cable

* formally know as Industrial Trent 60


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Bayonne Energy Center – Necessity

BEC is needed to ensure competitive peaking power and grid stability for NYC

Why …

3.000

4.000

5.000

6.000

7.000

8.000

9.000

Time Stamp 09/21/2016 09/22/2016 09/23/2016 09/24/2016 09/25/2016

3,500 MW spread

How … BEC is the New York City peaking facility providing the most flexible operating range and the only one offering 10min non-spinning-reserve with automatic dispatch

500 MW in 10 min

N.Y.C. load forecast

NYC load is predominantly driven by the ambient temperature and the weather forecast (A/C demand depending on temperature)

The NYC grid has a load spread of 3,500 MW and more per day

Most of the other NYC power plant facilities are more than 40 years old


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Bayonne Energy Center – Purchasing Criteria

BEC Requirements SGT-A65 TR

Multiple starts and stops per day Unlimited cycles per day, no lock-out

Low cost per start Low parasitic loads, fast acceleration

10 minute start (non-spinning reserve) 500 MW in <10 minutes (cold to full load)

High full and part load efficiency Best in class efficiency levels

High availability and starting reliability Very low eFORd, very high starting reliability

High power density Highest MW output on BEC’s footprint

Black start capable Low starting power requirement (<350 kW)

Automatic generation control Automatically starts & achieves MW set point

Low operation and maintenance costs Two operators on shift for eight turbines

State of the art (SOTA) emission levels Best achievable emission performance


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BEC supports the volatile demand of the NY grid using high cycle capable units

Bayonne Energy Center – High cycling capability

March 7, 2016: 33 total start (six starts on unit 2)

Total plant Output (~500 MW peak)

Unit No. 2 Output (64 MW max)

Total plant Output (~500 MW peak)

Unit No. 2 Output (64 MW max)

No EOH counter


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Bayonne Energy Center – 10 minutes start up capability & low cost per start

Cost per start: $40-60

Based on ≈20 MMBTU gas required to accelerate to base load and $2-3 per MMBTU

0

2000

4000

6000

8000

10000

12000

0 50 100 150 200 250 300 350 400 450 500 550 600

High

Spe

ed S

pool

Spee

d (NH

) (rp

m)

Time (Seconds)

Start permissivesare met, then start

Ventilation system @ 5s

Base

load A

chiev

ed

Light-off to Sub-Sync Idle (20s)

Start InitiationStart LO & Hydr.

Systems &Enclosure Ventilation

(70s)

GT Rotation to Purge Speed(60s)

Ramp RateIncrease - 0.35 MWe/sDecrease - 0.17 MWe/s

Droop Control – 0.65 MW/s (Max)

Sub Sync Idle (SSI)

Dwell(90s)

Accel from SSI

to SI(40s)

Auto Sync check & in Progress

and breaker close(30s)

Acceleration to 66MW (194s)

Begin

G.T.

Rot

ation

to P

urge

G.T.

Purg

e Spe

ed A

chiev

ed

Sub-

Sync

Idle

Achie

ved

GT W

arm-up

Com

plete

Sync

Idle

Achie

ved

Comp

lete P

urge

Brea

ker C

losed

Cold Purge

(21s) RR Std Pkg,

Site Specific)ISO 21789

Total air volume purged by gas turbine only is 124.14 m3. Code requirements define volume and time requried

SGT-A65 TR WLE (Gas Fuel) – 10 min start sequence

Fast start enables 10 min non-spinning-reserve and low start up costs due to less time at lower efficiency


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Bayonne Energy Center – High full and part load efficiency

Multiple unit concept enables flexibility and optimized efficiency at all operating points

Advantages of multiple unit power plants

Plant Efficiency Curve*

0 50 100 150 200 250 300 350 400 450 500 550

42 40

34

38 36

32 30 28 26

0

Efficiency (%)

Power (MW)

High simple cycle full load efficiency

Better efficiency at most part load operating points

Fast start and steep ramp rates

Low station power loss during gas turbine maintenance outage (up to 448 MW available)

Turndown to <5% plant output

Emission compliance over entire curve

* Schematic

BEC efficiency higher than most other NYC peaking facilities


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Bayonne Energy Center – High availability and starting reliability

IEEE Standard – eFORd

A measure of the probability that a generating unit will not be available due to forced outages or forced derating when there is a demand on the unit to generate

Average simple cycle eFORd ≈ 5.30%

BEC 2016 YTD eFORd = 0.86 %

Only 13 failed starts out of 2653 attempts.

Average failed start ≈ 15 minutes

Report Summary

Month (2016) Att. Act. Rel. eFORd EAF

January 207 206 99.5% 0.40 96.82

February 263 261 99.2% 0.73 99.90

March 512 511 99.8% 1.76 98.50

April 423 422 99.8% 0.29 88.07

May 328 325 99.1% 0.03 81.06

June 275 273 99.3% 0.14 99.89

July 311 311 100.0% 0.59 97.63

August 334 331 99.1% 1.30 97.90

Report Totals 2653 2640 99.5% 0.86 94.94

Att. = Attempted Starts | Act. = Actual Starts | Rel. = Starting Reliability | eFORd = Equivalent Demand Forced Outage Rate EAF = Equivalent Availability Factor


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Bayonne Energy Center – Highest power density

Optimal land utilization in the high price NYC area

Bayonne Energy Center (“BEC”): 6.8 acres (≈27,500 m²) +132 MW BEC Expansion Site

The applied solution enables about 20% more power on the give ground

SGT-A65 TR Other solutions

512 MW ~400 MW

19 kW/m² 14.5 kW/m²


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Siemens SGT-A65 TR Heritage from Rolls-Royce Aero Trent

Trent 800 SGT-A65 TR

SGT-A65 TR

~30 Million – Aero Trent 800 hours

1.2 Million – SGT-A65 TR fleet hours

104 – Total engines sold


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Siemens SGT-A65 TR Combustion Systems

Wet Low Emission (WLE)

Dry Low Emission (DLE)

Dual fuel with water injection burner No EOH on liquid operation.


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Siemens SGT-A65 TR Package

Weights GT Skid 75,000 kg GT Package Roof 18,000 kg GT Engine 14,000 kg Filter 21,300 kg Generator Skid 107,000 kg

Designed for Maintainability and Quick Installation

Engine weighs less than 11 tonnes and is air freight transportable

Small footprint (~220 m²)

Installation possible <75 days

Engine change-out within <48 hours


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SGT-A45 TR Mobile Unit – Fast Power. Superior Performance. Trusted technology.

Key benefits 44 MWe (ISO) – highest power density

2-weeks installation

Delivered by road, air or sea

Performance optimized for hot climates

50 Hz or 60 Hz

Liquid and gas fuel

Emissions as low as 25 vppm NOx

Proven turbomachinery

Minimal site interfaces and preparation


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Conclusion & Outlook

Conclusion Outlook

BEC is a successful plant for grid support in a weather driven, highly volatile grid due to • Fast start and operational flexibility • High full and part load efficiency • High reliability and availability

Flexible Combine Cycle Plants with up to 53.6% efficiency

Bayonne recently extends the plant by two more units due to good experience and great performance

The concept can be applied to other volatile grids – e.g. with high share of renewables

Hybrid plants • SGT-A65 TR with heavy duty large gas turbine

(using the same boiler) • SGT-A65 TR combined with battery storage for

back start and quick response • SGT-A65 TR with CSP plant

(using the same boiler)

Mobile Power SGT-A45 TR Mobile Unit with 44MW launched


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Thank you for your attention

Tobias Aschoff Power and Gas Division Distributed Generation PG DG SPM

Mobile: +49 173 5133163 E-mail: [email protected]

Tom Scarinci Power and Gas Division Distributed Generation PG DG GCS

Mobile: +1 514 4636283 E-mail: [email protected]

siemens.com

mailto:[email protected]

mailto:[email protected]


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Package sliding doors

Combustion air inlet filter (incl. ducting for Inlet Fogging or Chilling coil)

LP BOV ductwork

Package ventilation ductwork

Exhaust stack

OAC AC Gen

Package base plate

SGT-A65 TR

Siemens SGT-A65 TR Package Layout

BACK-UP


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Disclaimer

This document contains statements related to our future business and financial performance and future events or developments involving Siemens that may constitute forward-looking statements. These statements may be identified by words such as “expect,” “look forward to,” “anticipate” “intend,” “plan,” “believe,” “seek,” “estimate,” “will,” “project” or words of similar meaning. We may also make forward-looking statements in other reports, in presentations, in material delivered to shareholders and in press releases. In addition, our representatives may from time to time make oral forward-looking statements. Such statements are based on the current expectations and certain assumptions of Siemens’ management, of which many are beyond Siemens’ control. These are subject to a number of risks, uncertainties and factors, including, but not limited to those described in disclosures, in particular in the chapter Risks in Siemens’ Annual Report. Should one or more of these risks or uncertainties materialize, or should underlying expectations not occur or assumptions prove incorrect, actual results, performance or achievements of Siemens may (negatively or positively) vary materially from those described explicitly or implicitly in the relevant forward-looking statement. Siemens neither intends, nor assumes any obligation, to update or revise these forward-looking statements in light of developments which differ from those anticipated.

Trademarks mentioned in this document are the property of Siemens AG, its affiliates or their respective owners.

TRENT® and RB211® are registered trade marks of and used under license from Rolls-Royce plc. Trent, RB211, 501 and Avon are trade marks of and used under license of Rolls-Royce plc.

peaking plant bayonne (nj/usa) - siemens energy sector · pdf file9/25/2016 ·...

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