Evaluation of a 1 MW, 250 kW-hr Battery Energy Storage System for Grid Services for the Island of Hawaii

Karl Stein, Moe Tun, Keith Musser and Richard Rocheleau
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Karl Stein: Center for Climate Physics, Institute for Basic Science (IBS), Busan 46241, Korea
Moe Tun: HNU Photonics LLC, Kahului, HI 96732, USA
Keith Musser: Integrated Dynamics, Inc., Fishers, IN 46037, USA
Richard Rocheleau: Hawai‘i Natural Energy Institute, SOEST, University of Hawaii at Mānoa, Honolulu, HI 96822, USA

Energies, 2018, vol. 11, issue 12, 1-17

Abstract: Battery energy storage systems (BESSs) are being deployed on electrical grids in significant numbers to provide fast-response services. These systems are normally procured by the end user, such as a utility grid owner or independent power producer. This paper introduces a novel research project in which a research institution has purchased a 1 MW BESS and turned ownership over to a utility company under an agreement that allowed the institution to perform experimentation and data collection on the grid for a multi-year period. This arrangement, along with protocols governing experimentation, has created a unique research opportunity to actively and systematically test the impact of a BESS on a live island grid. The 2012 installation and commissioning of the BESS was facilitated by a partnership between the Hawaii Natural Energy Institute (HNEI) and the utility owner, the Hawaiian Electric and Light Company (HELCO). After the test period ended, HELCO continued to allow data collection (including health testing). In 2018, after 8500 equivalent cycles, the BESS continues to operate within specifications. HNEI continues to provide HELCO with expertise to aid with diagnostics as needed. Details about the BESS design, installation, experimental protocols, initial results, and lessons learned are presented in this paper.

Keywords: battery energy storage system; field evaluation; wind smoothing; frequency regulation; grid-scale; lithium-titanate (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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