Kodiak Electric Renewable Energy Implementation

Colin YoungSystem Engineer

4/26/2016

Kodiak Electric

 Territory

2016 Grid

Kodiak Board Members Create a Vision in 2005

“Endeavor to produce 95% of energy sales with cost effective renewable power solutions by the year 2020”

• Reduce fuel oil price volatility • Cleaner Air• Increase reliability• Maintain Electric Rates• The vision included adding 3 wind turbines, then 3rd hydro unit, then 3 more wind turbines and a battery backup for the wind

First (3) 1.5 MW GE Wind Turbines• Wind Resource Report

• Class 7 (superb) wind power site• 8.5 m/s average wind speed

• Electric Power Systems, Inc study• Numerous transient stability cases were looked at using PSS/E software

• Terror lake hydros only• Diesels only• And combination of both• And adding wind to the mix

• Generations ability to handle wind turbine trips• Substation upgrade included (1) 5 MVA transformer• About (1) mile of 25KV overhead and underground cable run to the 

wind farm• Road upgrade• Under frequency load shedding scheme adjustment• Capacitor additions to improve system voltage • Sources of money

• $5 Million from the Alaska Energy Fund through the Alaska Energy Authority• $16 Million from Federal Clean Renewable Energy Bonds (CREB)

Next (3) 1.5 MW GE Wind Turbines• EPS Study

• Transient stability analysis found problems with frequency regulation

• 3 MW/2MWh lead acid battery system addition

• Substation upgrade included 2nd5 MVA transformer

• Source of money• $7.8 Million from the Alaska 

Energy Fund through the Alaska Energy Authority

• $13.2 Million from Federal Clean Renewable Energy Bonds (CREB)

3rd 12.5 MVA Hydro Turbine Addition 2014• Extra bay built with original hydro plant

• Pushes available peak to over 30 MW• Increased transient stability response• Substation upgrade included 30 MVA transformer

• Source of money• $7.5 Million from the Alaska Energy 

Fund through the Alaska Energy Authority

• $7.5 Million from Federal Clean Renewable Energy Bonds (CREB)

2008 Grid (Pre‐Wind Turbine Implementation)• 84% Hydro• 16% Diesel• 2 to 3 system wide outages

2015 Grid

• 80.4% Hydro• 19.3% Wind• 0.3% Diesel• Went 2 years without a system wide outage

• Estimated gallons of fuel saved since July 2009: 9.6 Million

• Veteran’s Day Wind Farm Loss 

Wind Direction Changed and 9 MW of Power Disappeared

57

58

59

60

61

62

63

‐10000

100020003000400050006000700080009000

1000011000120001300014000150001600017000180001900020000

‐30 ‐20 ‐10 0 10 20 30 40 50 60 70 80 90 100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390

HzKW

Seconds

SYSTEM RESPONSE TO WIND EVENT 11/11/2015 12:53 PM

BESS MW (Adjusted to 2.7 MW peak) FESS MW WIND TURBINES HYDRO MW FREQ

FREQUENCY

HYDRO

WIND TURBINES

BATTERYFLYWHEELS

New 1.5 MW Shipping Crane• ABB 2 MW Flywheels

• Crane mode • Frequency support mode

• KEA Total Cost $3.5 M• Feeder Ties  $1.1 M• Site Preparation, Feeder Tap, FESS $2.4 M 

• MATSON Contribution $400,000

• City of Kodiak Contribution $400,000

EPS Simulation of Flywheel‐Crane Relationship

2 MW Flywheels Use Two Modes

• Crane Mode• Matches crane power output • Crane goes into “de‐rate” when flywheels offline

• Frequency Support Mode• Responds to frequency changes if more than 60.1 Hz or less than 59.9 Hz

• Battery settings moved to 61 Hz and 59.7 Hz• Hybrid crane‐frequency support

‐1000‐900‐800‐700‐600‐500‐400‐300‐200‐100

0100200300400500600700800900

10001100120013001400

7:52:53 PM

7:52:57 PM

7:52:59 PM

7:53:02 PM

7:53:04 PM

7:53:12 PM

7:53:29 PM

7:53:32 PM

7:53:34 PM

7:53:36 PM

7:53:38 PM

7:53:40 PM

7:53:43 PM

7:53:45 PM

7:53:47 PM

7:53:50 PM

7:53:52 PM

7:53:55 PM

7:53:58 PM

7:54:01 PM

7:54:03 PM

7:54:07 PM

7:54:10 PM

7:54:13 PM

7:54:22 PM

7:54:32 PM

7:54:34 PM

7:54:38 PM

7:54:41 PM

7:54:44 PM

7:54:47 PM

7:54:50 PM

7:54:52 PM

7:54:55 PM

7:55:02 PM

7:55:16 PM

7:55:30 PM

7:55:49 PM

7:56:07 PM

7:56:11 PM

7:56:13 PM

7:56:16 PM

7:56:18 PM

7:56:20 PM

7:56:29 PM

7:56:33 PM

7:56:35 PM

7:56:37 PM

7:56:39 PM

7:56:42 PM

7:56:44 PM

7:56:47 PM

7:56:52 PM

7:56:56 PM

7:57:05 PM

7:57:15 PM

7:57:17 PM

7:57:19 PM

7:57:21 PM

7:57:26 PM

7:57:34 PM

7:57:43 PM

7:57:52 PM

7:58:06 PM

7:58:23 PM

7:58:36 PM

7:58:52 PM

KW

Time

Crane Full Power Mode (Endurance Test), 23 Ton Container, 12‐14‐15

Crane Power Total

‐1000‐900‐800‐700‐600‐500‐400‐300‐200‐100

0100200300400500600700800900

10001100120013001400

7:52:53 PM

7:52:57 PM

7:52:59 PM

7:53:02 PM

7:53:04 PM

7:53:12 PM

7:53:29 PM

7:53:32 PM

7:53:34 PM

7:53:36 PM

7:53:38 PM

7:53:40 PM

7:53:43 PM

7:53:45 PM

7:53:47 PM

7:53:50 PM

7:53:52 PM

7:53:55 PM

7:53:58 PM

7:54:01 PM

7:54:03 PM

7:54:07 PM

7:54:10 PM

7:54:13 PM

7:54:22 PM

7:54:32 PM

7:54:34 PM

7:54:38 PM

7:54:41 PM

7:54:44 PM

7:54:47 PM

7:54:50 PM

7:54:52 PM

7:54:55 PM

7:55:02 PM

7:55:16 PM

7:55:30 PM

7:55:49 PM

7:56:07 PM

7:56:11 PM

7:56:13 PM

7:56:16 PM

7:56:18 PM

7:56:20 PM

7:56:29 PM

7:56:33 PM

7:56:35 PM

7:56:37 PM

7:56:39 PM

7:56:42 PM

7:56:44 PM

7:56:47 PM

7:56:52 PM

7:56:56 PM

7:57:05 PM

7:57:15 PM

7:57:17 PM

7:57:19 PM

7:57:21 PM

7:57:26 PM

7:57:34 PM

7:57:43 PM

7:57:52 PM

7:58:06 PM

7:58:23 PM

7:58:36 PM

7:58:52 PM

KW

Time

Crane Full Power Mode (Endurance Test), 23 Ton Container, 12‐14‐15

Crane Power Total FESS Power Total

59

59.1

59.2

59.3

59.4

59.5

59.6

59.7

59.8

59.9

60

60.1

60.2

60.3

60.4

60.5

60.6

60.7

60.8

60.9

61

‐1000‐900‐800‐700‐600‐500‐400‐300‐200‐100

0100200300400500600700800900

10001100120013001400

7:52:53 PM

7:52:57 PM

7:53:00 PM

7:53:02 PM

7:53:05 PM

7:53:16 PM

7:53:30 PM

7:53:32 PM

7:53:35 PM

7:53:37 PM

7:53:39 PM

7:53:42 PM

7:53:44 PM

7:53:46 PM

7:53:48 PM

7:53:51 PM

7:53:54 PM

7:53:57 PM

7:54:00 PM

7:54:03 PM

7:54:07 PM

7:54:10 PM

7:54:13 PM

7:54:24 PM

7:54:33 PM

7:54:35 PM

7:54:38 PM

7:54:42 PM

7:54:45 PM

7:54:48 PM

7:54:51 PM

7:54:54 PM

7:54:59 PM

7:55:10 PM

7:55:25 PM

7:55:44 PM

7:56:03 PM

7:56:10 PM

7:56:13 PM

7:56:15 PM

7:56:17 PM

7:56:20 PM

7:56:29 PM

7:56:33 PM

7:56:35 PM

7:56:37 PM

7:56:39 PM

7:56:43 PM

7:56:45 PM

7:56:48 PM

7:56:53 PM

7:57:01 PM

7:57:10 PM

7:57:16 PM

7:57:18 PM

7:57:21 PM

7:57:23 PM

7:57:32 PM

7:57:41 PM

7:57:49 PM

7:58:03 PM

7:58:22 PM

7:58:35 PM

7:58:52 PM

HzKW

Time

Crane Full Power Mode (Endurance Test), 23 Ton Container, 12‐14‐15

Crane Power Total FESS Power Total Frequency

‐1000

‐900

‐800

‐700

‐600

‐500

‐400

‐300

‐200

‐100

0

100

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

2:32:12 PM

2:32:26 PM

2:32:36 PM

2:32:52 PM

2:33:01 PM

2:33:10 PM

2:33:27 PM

2:33:41 PM

2:33:55 PM

2:34:01 PM

2:34:14 PM

2:34:26 PM

2:34:35 PM

2:34:47 PM

2:35:01 PM

2:35:16 PM

2:35:34 PM

2:35:52 PM

2:36:09 PM

2:36:17 PM

2:36:26 PM

2:36:39 PM

2:36:48 PM

2:36:58 PM

2:37:09 PM

2:37:20 PM

2:37:29 PM

2:37:44 PM

2:37:59 PM

2:38:10 PM

2:38:19 PM

2:38:26 PM

2:38:34 PM

2:38:47 PM

2:38:56 PM

2:39:16 PM

2:39:28 PM

2:39:37 PM

2:39:51 PM

2:39:59 PM

2:40:11 PM

2:40:20 PM

2:40:30 PM

2:40:45 PM

2:40:54 PM

2:41:12 PM

2:41:33 PM

2:41:47 PM

2:41:56 PM

2:42:07 PM

2:42:18 PM

2:42:29 PM

2:42:43 PM

2:42:58 PM

2:43:07 PM

2:43:16 PM

2:43:28 PM

2:43:38 PM

2:43:49 PM

2:44:02 PM

2:44:14 PM

2:44:24 PM

2:44:33 PM

2:44:45 PM

2:45:07 PM

2:45:22 PM

2:45:33 PM

2:45:46  PM

2:45:56 PM

2:46:07 PM

2:46:22 PM

2:46:36 PM

2:46:55 PM

KW

Time

Crane De‐rate Mode (500 kW Max), 40 Ton Container, FESS 1 & 2 Offline, 12‐12‐15

Crane Power Output

59.5

59.6

59.7

59.8

59.9

60

60.1

60.2

60.3

2:32:12 PM

2:32:26 PM

2:32:36 PM

2:32:52 PM

2:33:01 PM

2:33:10 PM

2:33:27 PM

2:33:41 PM

2:33:55 PM

2:34:01 PM

2:34:14 PM

2:34:26 PM

2:34:35 PM

2:34:47 PM

2:35:01 PM

2:35:16 PM

2:35:34 PM

2:35:52 PM

2:36:09 PM

2:36:17 PM

2:36:26 PM

2:36:39 PM

2:36:48 PM

2:36:58 PM

2:37:09 PM

2:37:20 PM

2:37:29 PM

2:37:44 PM

2:37:59 PM

2:38:10 PM

2:38:19 PM

2:38:26 PM

2:38:34 PM

2:38:47 PM

2:38:56 PM

2:39:16 PM

2:39:28 PM

2:39:37 PM

2:39:51 PM

2:39:59 PM

2:40:11 PM

2:40:20 PM

2:40:30 PM

2:40:45 PM

2:40:54 PM

2:41:12 PM

2:41:33 PM

2:41:47 PM

2:41:56 PM

2:42:07 PM

2:42:18 PM

2:42:29 PM

2:42:43 PM

2:42:58 PM

2:43:07 PM

2:43:16 PM

2:43:28 PM

2:43:38 PM

2:43:49 PM

2:44:02 PM

2:44:14 PM

2:44:24 PM

2:44:33 PM

2:44:45 PM

2:45:07 PM

2:45:22 PM

2:45:33 PM

2:45:46 PM

2:45:56 PM

2:46:07 PM

2:46:22 PM

2:46:36 PM

2:46:55 PM

Hz

Time 

Frequency Output During Crane De‐rate, FESS 1 & 2 Offline, 40 Ton Container, 12‐12‐15

Frequency

‐1000‐900‐800‐700‐600‐500‐400‐300‐200‐100

0100200300400500600700800900

10001100120013001400

3:27:36 PM

3:27:39 PM

3:27:41 PM

3:27:44 PM

3:27:47 PM

3:27:52 PM

3:27:53 PM

3:27:56 PM

3:27:58 PM

3:27:59 PM

3:28:02 PM

3:28:03 PM

3:28:04 PM

3:28:05 PM

3:28:06 PM

3:28:07 PM

3:28:07 PM

3:28:07 PM

3:28:07 PM

3:28:08 PM

3:28:08 PM

3:28:08 PM

3:28:08 PM

3:28:09 PM

3:28:09 PM

3:28:10 PM

3:28:10 PM

3:28:10 PM

3:28:10 PM

3:28:11 PM

3:28:11 PM

3:28:11 PM

3:28:12 PM

3:28:12 PM

3:28:12 PM

3:28:12 PM

3:28:12 PM

3:28:13 PM

3:28:13 PM

3:28:13 PM

3:28:14 PM

3:28:14 PM

3:28:14 PM

3:28:14 PM

3:28:15 PM

3:28:15 PM

3:28:15 PM

3:28:16 PM

3:28:16 PM

3:28:17 PM

3:28:17 PM

3:28:17 PM

3:28:18 PM

3:28:18 PM

3:28:18 PM

3:28:18 PM

3:28:19 PM

3:28:19 PM

3:28:19 PM

3:28:19 PM

3:28:20 PM

3:28:20 PM

3:28:20 PM

3:28:20 PM

3:28:21 PM

3:28:21 PM

3:28:21 PM

KW

Time

Crane Transition from Full Power Mode to De‐rate Mode while Lifting 40 Ton Container, 12‐12‐15

Crane Power Total

Signal sent at this moment to crane to de‐ratepower output to 500 KW Max

59

59.2

59.4

59.6

59.8

60

60.2

60.4

60.6

60.8

0

500

1000

1500

2000

01818

3618

5418

7218

9018

1081

81261

81441

81621

81801

81981

82161

82341

82521

82701

82881

83061

83241

83421

93601

93781

93961

94141

9

Hertz

KW

Seconds

BESS ONLY (5/8/15, 12 HR PERIOD)

KW

FREQ

59

59.2

59.4

59.6

59.8

60

60.2

60.4

60.6

60.8

0

100

200

300

400

500

600

700

800

01998

3978

5958

7938

9918

1189

81387

81585

81783

81981

82179

82377

82575

92773

92971

93169

93367

93565

93763

93961

94159

9

Hertz

KW

Seconds

BESS WITH FESS (7/23/15, 12 HR PERIOD)

BESS KW

FREQUENCY

59

59.2

59.4

59.6

59.8

60

60.2

60.4

60.6

60.8

0

500

1000

1500

2000

02078

4138

6198

8258

1031

81237

81443

81649

81855

82061

82267

82473

92679

92885

93091

93297

93503

93709

93915

94121

9

Hertz

KW

Seconds

BESS WITH FESS (7/23/15, 12 HR PERIOD)

FESS KW

FREQUENCY

Battery Duty Cycle

Hybrid Mode Above 40% State of Charge

59.85

59.9

59.95

60

60.05

60.1

60.15

60.2

60.25

‐1400

‐1200

‐1000

‐800

‐600

‐400

‐200

0

200

400

600

20:53:13

20:53:14

20:53:14

20:53:16

20:53:17

20:53:18

20:53:19

20:53:20

20:53:21

20:53:22

20:53:23

20:53:23

20:53:25

20:53:25

20:53:26

20:53:27

20:53:28

20:53:29

20:53:30

20:53:31

20:53:32

20:53:33

20:53:33

20:53:35

20:53:35

20:53:37

20:53:40

20:53:42

20:53:45

20:53:46

20:53:47

20:53:47

20:53:48

20:53:48

20:53:49

20:53:50

20:53:51

20:53:51

20:53:52

20:53:54

20:53:54

20:53:56

20:53:56

20:53:57

20:53:58

20:53:59

20:53:59

20:54:00

Power (k

W)

Time (s)

3/7/2016 ‐ Crane operation

Crane FlywheelFrequency

Thank You!

• Alaska Energy Authority• Kodiak Electric Board Members

• Alaska Rural Energy Conference

Questions