HNEI Posters April 30, 2017

HNEI Research Overview Posters

Two posters that overview HNEI's research efforts have been posted.  HNEI's current and past projects are highlighted in the analysis, testing, and evaluation poster, while our faculty research is featured on the research and development poster.  The poster are available to view and download from the Presentations page, with direct links below.

HNEI Posters: Research and Development | Analysis, Testing, and Evaluation

Maui Energy Conference March 22, 2017

HNEI Director & Faculty at the Maui Energy Conference

HNEI Director, Richard Rocheleau, and faculty members James "Jay" Griffin, Leon Roose, and Mark Glick are participating and speaking at this year's Maui Energy Conference on March 22-24.  They will be speaking in multiple panels regarding energy resilience and sustainability, recent HNEI-led grid projects and studies, and transportation innovations.

The theme for this year's Maui Energy Conference is All Things Energy: Pursuing New Opportunities for Electricity and Beyond.  The conference, which is sponsored by HNEI, will focus on "Hawaii’s transition to a clean energy economy is on its way. The focus of this year’s Maui Energy Conference explores new and innovative pathways to a vibrant and clean energy future."

February 3, 2017

HNEI Faculty Member, Dr. Trevor Morgan, Co-Authors Book

HNEI Assistant Researcher, Dr. Trevor Morgan, co-authored the book Solid Fuels and Heavy Hydrocarbon Liquids: Thermal Characterization and Analysis, Second Edition.

The publisher, Elsevier, states that this book "integrates the developments that have taken place since publication of the first edition in 2006.  This updated material includes new insights that help unify the thermochemical reactions of biomass and coal, as well as new developments in analytical techniques, including new applications in size exclusion chromatography, several mass spectrometric techniques, and new applications of nuclear magnetic spectroscopy to the characterization of heavy hydrocarbon liquids."

The book is available at

Springer Handbook February 3, 2017

HNEI’s HiSERF Featured in Springer Handbook of Electrochemical Energy

The recently published Springer Handbook of Electrochemical Energy featured a chapter entitled “Modern Fuel Cell Testing Laboratory” based on HNEI’s Hawaii Sustainable Energy Research Facility.  The chapter describes the laboratory’s background and evolution, safety and test stations, fuel cell components  and assembly, and testing and diagnostic techniques.  Contributors included Jean St. Pierre, Michael Angelo, Keith Bethune, Jack Huizingh, Tatyana Reshetenko, Mebs Virji, and Yunfeng Zhai.

Google Books states that "this comprehensive handbook covers all fundamentals of electrochemistry for contemporary applications. It provides a rich presentation of related topics of electrochemistry with a clear focus on energy technologies. It covers all aspects of electrochemistry starting with theoretical concepts and basic laws of thermodynamics, non-equilibrium thermodynamics and multiscale modeling. It further gathers the basic experimental methods such as potentiometry, reference electrodes, ion-sensitive electrodes, voltammetry and amperometry. The contents cover subjects related to mass transport, the electric double layer, ohmic losses and experimentation affecting electrochemical reactions. These aspects of electrochemistry are especially examined in view of specific energy technologies including batteries, polymer electrolyte and biological fuel cells, electrochemical capacitors, electrochemical hydrogen production and photoelectrochemistry."

The handbook is available at

Frog Rendering Image November 10, 2016

Net Zero Buildings Open at UH Manoa

Two net zero buildings installed for the College of Education by the Hawaii Natural Energy Institute and funded by the Office of Naval Research, opened their doors to the public in celebration of the FROG 1 and 2 grand opening on November 4. These FROG (Flexible Response to Ongoing Growth) classrooms will serve as models of energy efficient classroom design, minimizing energy use in a mixed-mode environment while using self-generated, renewable energy to offset energy consumption. Real-time building performance is displayed to users via a touch-screen dashboard, and the data is downloadable and can be integrated into STEM curricula.

Point of Contact: Jim Maskrey
More information: UH Press Release | UH Video Blog

September 23, 2016

Utility-Scale BESS Demonstration Project

In collaboration with Hawaiian Electric and with funding from the U.S. Office of Naval Research, the Hawai‘i Natural Energy Institute is providing the lead to test and evaluate three Battery Energy Storage Systems (BESS) operating on Oahu, Moloka'i and Hawai‘i Island.

More information regarding this project can be found in HECO's press release:

Hawaii Clean Energy Final PEIS Report June 7, 2016

Hawaii Clean Energy Final PEIS Report

In July 2012, in coordination with the USDOE and DBEDT, HNEI contracted New West Technologies to conduct a Programmatic Environmental Impact Study (PEIS) to analyze, at a programmatic level, the potential environmental impacts of clean energy activities and technologies in the following clean energy categories: (1) Energy Efficiency, (2) Distributed Renewables, (3) Utility-Scale Renewables, (4) Alternative Transportation Fuels and Modes, and (5) Electrical Transmission and Distribution (including undersea cables).

The PEIS provides federal and local agencies, policymakers, energy developers, and the public with information and guidance on adhering to all laws and permitting requirements, implementing well-planned best management practices and mitigation measures, and consideration of community and cultural concerns that can be used to make decisions about renewable energy and energy efficiency deployment.

The full report and related supplemental documents can be found on the Hawaii State Energy Office website at

Electric Utility April 29, 2016

Evaluation of Alternative Ownership Options for Electric Utility Assets on the Islands of Oahu and Hawaii

Prepared for HNEI by Filsinger Energy Partners, Denver, Colorado
This report presents an overview of the municipal and cooperative utility ownership models for the islands or Oahu and Hawaii, including potential benefits and challenges associated with acquiring, financing, and operating the utilities.  The report recommends necessary steps and analyses associated with further pursuing either ownership option.
Point of Contact:  John Cole
Fiery Ice 2016 January 6, 2016

Fiery Ice Conference

This year's theme, "15 Years of Progress and Future Directions" will highlight accomplishments and changes in hydrate science and engineering since the first workshop in 2001, and identify directions for the future. A primary objective will be to try to develop a well-defined path to expand major international collaborations.

Fiery Ice 2016

10th International Workshop on Methane Hydrate Research and Development

Hawaii Imin International Conference Center, Honolulu, Hawaii, USA.

June 15-17, 2016

The 1st International Workshop on Methane Hydrate R&D was held in March 2001 in Honolulu, Hawaii. The primary objective of that and subsequent workshops was to provide a forum where hydrate researchers and stakeholders could freely exchange information and identify research priorities in an effort to promote collaboration. Subsequent workshops have been held, on average, every 1.5 years in different countries including the U.S., Chile, Canada, U.K., Norway, New Zealand, Japan, and India.

More details are available at the Fiery Ice 2016 information page and you can register for the workshop at

Renewable Gas Web November 12, 2015

Creating renewable gasoline

Creating gasoline and biodiesel from readily available microbial organisms may sound too good to be true, but that is exactly what researchers at the Hawaiʻi Natural Energy Institute at the University of Hawaiʻi at Mānoa are doing. A new one-pot process is described in a recent publication by Hawaiʻi Natural Energy Institute Postdoctural Fellow Shimin Kang and Researcher Jian Yu.

“As we refine this process, we will be able to simplify and bring down the cost of converting renewable feedstock to commercially viable transportation fuel,” said researcher Kang.

Biomass to biofuel

There are several different types of feedstock—defined as any renewable, biological material (biomass)—that can be used directly as a fuel or converted to another form of fuel or energy product. Common examples of biomass feedstocks include corn starch, sugarcane juice and purpose-grown grass crops that can be used to derive fuels like ethanol, butanol, biodiesel and other hydrocarbon fuels.

For a fuel to be considered good enough to use in modern high performance automobiles, it needs to have a high antiknock quality (octane number) and low oxygen. Since biomass generally has high oxygen content, it can be a challenge to create a high quality fuel without using multiple complex steps under high pressures and temperatures that can result in high costs of equipment and operation. Researchers are addressing this challenge by testing alternative feedstocks and new processing technology.

Bacterial biomass and a solid catalyst

Like starch and oil accumulated in plants, polyhydroxybutyrate (PHB) is an energy storage material accumulated from renewable feedstock in many microbial species. Following up on studies showing that PHB could be reformed into oil in liquid phosphoric acid solutions, Kang and Yu tested the process using a solid phosphoric acid as a catalyst. They were able to produce high quality bio-oils, a light gasoline-grade biofuel and a heavy biodiesel-grade biofuel, in a simple one-pot reaction.

“By using a solid catalyst we were able to increase the aromatics content, thereby raising the octane number, while reducing the water content in the resulting commercial grade oils,” said Kang.

With this new, more efficient, method researchers were able to achieve results with reaction temperatures low in comparison to catalytic conversion of conventional biomass. This may help bring down the cost of conversion to biofuel. With future work building on these results, they hope to develop a standard method to create a consistent fuel.

Links: See on UH News site; article on Green Car Congress