NREL is a national laboratory of the U.S. Department of Energy, Office of EnergyEfficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.

Contract No. DE-AC36-08GO28308

Spring 2011 Composite Data ProductsBackup Power

J. Kurtz, K. Wipke, S. Sprik, T. Ramsden, C. Ainscough, G. Saur

Technical Report NREL/TP-5600-51578March 2011

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NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.

Spring 2011 Composite Data ProductsBackup Power

J. Kurtz, K. Wipke, S. Sprik, T. Ramsden, C. Ainscough, G. Saur

March 29th, 2011

TP-5600-51578

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-01Backup Power Fuel Cell Systems Deployed

2009 Q3 2009 Q4 2010 Q1 2010 Q2 2010 Q3 2010 Q40

20

40

60

80

100

120

140

160

180

200

10 14 14 31

44

189

Backup Power Fuel Cell Systems Deployed

Cu

mu

lati

ve S

yste

ms

1,2 D

eplo

yed

NREL cdp_bu_01

Created: Mar-07-11 1:38 AM 1) Sites may have more than one FC system2) Not all FC systems are suppling operation data

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-02Deployed kW Capacity for Backup Power

2009 Q3 2009 Q4 2010 Q1 2010 Q2 2010 Q3 2010 Q40

50

100

150

200

250

300

350

400

450

50 70 70

104

130

420

Deployed kW Capacity for Backup Power

Cu

mu

lati

ve D

eplo

yed

Cap

acit

y [k

W]

NREL cdp_bu_02

Created: Mar-07-11 1:38 AM

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-03Backup Power Deployments

Backup Power Deployments

1-10

11-20

21-30

31-40

41-50

51-60

61-70

71-80

81-90

91-100

>100

NREL cdp_bu_03

Created: Mar-07-11 1:38 AM

State kW Capacity SitesArizona 40 9

California 146 23Colorado 24 5Florida 6 1Illinois 4 2Indiana 24 10

Michigan 102 25South Carolina 50 1

Utah 36 9

Totals 432 85

Site Capacity (line height proporational to installed site kW capacity)

Number ofSites in State

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-04Fuel Cell System Starts by Month

0

10

20

30

40

50

60

70

80

Sta

rts

Starts by Month

07/0

908

/09

09/0

910

/09

11/0

912

/09

01/1

002

/10

03/1

004

/10

05/1

006

/10

07/1

008

/10

09/1

010

/10

11/1

012

/10

Calendar Month

408 of 409 Starts Successful (99.8%)59% Conditioning Starts

Starts

Conditioning1 StartSuccessful Start

0

20

40

Rep

ort

ing

FC

Sys

tem

s

NREL cdp_bu_04

Created: Mar-16-11 12:59 PM1) FC system conditioning is an automated operation for regularsystem checks; activitated after long periods of no operation.

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-05Fuel Cell System Run Hours by Month

0

5

10

15

20

25

30

35

40

45

50

07/0

908

/09

09/0

910

/09

11/0

912

/09

01/1

002

/10

03/1

004

/10

05/1

006

/10

07/1

008

/10

09/1

010

/10

11/1

012

/10

Calendar Month

Cal

cula

ted

Ru

nti

me

[ho

urs

]

Run Hours by Month

218 Total Runtime Hours

Run Hours

Conditioning1 Hours

NREL cdp_bu_05

Created: Mar-16-11 1:00 PM1) FC system conditioning is an automated operation for regularsystem checks that are run after long periods of no operation.

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-06Cumulative Hydrogen Consumed by Month

0

5

10

15

20

25

30

35

40

07/0

908

/09

09/0

910

/09

11/0

912

/09

01/1

002

/10

03/1

004

/10

05/1

006

/10

07/1

008

/10

09/1

010

/10

11/1

012

/10

Calendar Month

Hyd

rog

en k

gs

Co

nsu

med

Cumulative Hydrogen Consumed by Month

32.3 kgs Total Consumed H2

12,707 scf Total Consumed H2

NREL cdp_bu_06

Created: Mar-16-11 1:00 PM

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-07Fuel Cell System Starts by Day of Week

Sun Mon Tues Wed Thur Fri Sat0

5

10

15

20

25

30

35

40

45System Starts by Day of Week

Sta

rts

[%]

DayNREL cdp_bu_07

Created: Mar-16-11 5:01 PM

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-08Fuel Cell System Starts by Time of Day

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 240

5

10

15System Starts by Time of Day

Sta

rts

[%]

Time of Day

Starts

Conditioning1 Starts

NREL cdp_bu_08

Created: Mar-16-11 4:59 PM1) FC system conditioning is an automated operation for regularsystem checks; activitated after long periods of no operation.

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-09Continuous Fuel Cell System Run Time

0 1 2 3 4 5 6 7 8 9 100

10

20

30

40

50

60

70

80

90

100

Continuous Run Time [hours]

Sta

rts

[%]

Continous System Run Time

0 10 20 30 40 50 600

10

20

30

40

50

Continuous Run Time [Mins]S

tart

s<=

60 m

ins

[%]

NREL cdp_bu_09

Created: Mar-16-11 1:01 PM

NATIONAL RENEWABLE ENERGY LABORATORY

CDP-BU-10Unsuccessful Operation Categories

0

1

2

Un

succ

essf

ul O

per

atio

ns/

Sta

rts

Unsuccessful Operation Categories

EStop

NREL cdp_bu_10

Created: Mar-16-11 4:37 PM