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Overview of Storage Issues and Projects on the Island of Hawai‘i Jay M. Ignacio President, Hawai‘i Electric Light

Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

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Page 1: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

Overview of Storage Issues and Projects on the Island of Hawai‘i

Jay M. IgnacioPresident, Hawai‘i Electric Light

Page 2: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

2

Hawai‘i Island Exceeds RPS Goal

SOURCE: 2015 Sustainability Report* Includes amount of electricity generated by Hawai‘i Electric Light, purchased from independent power producers, and produced by rooftop solar systems

48.7%in 2015

Page 3: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

3

Challenges of HighRenewable Penetration

System Hosting Capacity ‐ Excess Energy− Storage− Unit Turn down− Demand Response− Curtailment

Storage provides a resource unlike any other in the energy market– Generation no longer always needs to follow the loadContingency StoragePower Quality

Page 4: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

4

Current Daily Dispatch

Page 5: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

5System Stability 5

Page 6: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

6

Wind Variability

0

5

10

15

20

25

9:00 10:00 11:00 12:00 13:00 14:00 15:00

Load

 (MW)

Saturday, December 8, 2012

Page 7: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

77

Page 8: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

88

Source: RMI , EPRI

Page 9: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

99

Source: RMI , EPRI

Page 10: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

1010

Source: RMI – The Economics of Battery Energy Storage, Oct 2015; EPRI – Cost‐effectiveness of Energy Storage in California, Jun 2013

Page 11: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

1112 ongoing energy storage pilots across three companies ~7 MW / ~9.3 MWh total capacity

Operating project

HECO PV/BESSEV Carport5 kW/20 kWh

CIP BESS Demo1 MW/250 kWh

Molokai BESS2 MW/397 kWh

MECO Smart Grid BESS1 MW/1 MWh HELCO Hawi BESS

1 MW/250 kWh

HELCO Power Conditioner2 x 100 kW/248 kWh

Operating Planned Total

Oahu ~1.01 MW(6.02MWh)

~1 MW(0.275 MWh)

~2.01 MW(~6.3 MWh)

Maui County ~1.7 MW(~1.74MWh)

2.06 MW(0.517 MWh)

~3.76 MW(2.26 MWh)

Big Island 1.2 MW(0.746 MWh) 0 1.2 MW

(0.746 MWh)

Total ~3.91 MW(~8.51 MWh)

3.06 MW(~0.79 MWh)

~7 MW(~9.3 MWh)

Energy Storage Capacity, MW (MWh)

Stem distributed BTM BESS1 MW/ 2 MWh

Planned project

Molokai E-Gear10 x 6 kW/12 kWh

JUMPSmart Maui230 kW / 576 kWh 460 kW / 153 kWh

Maui Demo Project3 x 6 kW / 10.77 kWh

Source: HECO energy storage database as of May 2016

Grid-interactivewater heaters4 MWh

Flywheel pilot6.25 kW/ 25 kWh

Page 12: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

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Storage (BESS) 

Storage can reduce frequency variability due to wind output

Frequency smoothed by BESS RESPONSE 

Page 13: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

13BESS Performance – During Event 13

Max Charge

Max Discharge 

Deplete

Battery charges/discharges to help offset frequency changes

Page 14: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

14

Hawai‘i Island’s Lessons Learned

Contingency functions can work well

Power Converters & Controls key component

Stability and Support of Manufacturer is critical

Simultaneous Functions complex to implement

Page 15: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

15

Going ForwardCustomer Self Supply

16 MW Contingency Storage

Long Term Storage on distribution

Pumped Storage

Egear

Second Use EV batteries

Disposal of batteries

Page 16: Overview of Storage Issues and on the Island of Hawai‘i · 2016-09-17 · SOURCE: 2015 Sustainability Report * Includes amount of electricity generated by Hawai‘i Electric Light,

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Mahalo!www.hawaiielectriclight.com 

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