Research and Reports

Not All Regions Are Alike: Evaluating the Effect of Oil Price Shocks on Local and Aggregate Economies

Using a sample of 48 contiguous U.S. states for the period 1973-2013, we study how oil price shocks influence state-level economic growth. The analysis incorporates …

Who are Driving Electric Vehicles? An analysis of factors that affect EV adoption in Hawaii

This study uses data on EV registrations by zipcode in Hawaii to analyze a variety of demographic and transportation factors that might affect EV adoption. …

Variable Pricing and the Cost of Renewable Energy

On a levelized-cost basis, solar and wind power generation are now competitive with fossil fuels, and still falling. But supply of these renewable resources is …

Economic Valuation of The Nature Conservancy’s Watershed Conservation Activities in Waikamoi Preserve, Maui

The objective of this research was to estimate the value of ecosystem services protected by watershed conservation activities at The Nature Conservancy’s Waikamoi Preserve on …

Determinants of Residential Solar Photovoltaic Adoption

Hawaii is a leader in distributed solar photovoltaic (PV) adoption. It has the highest rate of PV-based electricity penetration in the U.S. and rivals global …

Residential Battery Systems and the Best Time to Invest A case study of Hawaii

Battery storage is a complementary technology to intermittent renewable energy sources. In particular, it pairs well with solar photovoltaic (PV) systems to capture excess solar …

Governing Green Power: Realigning Institutions To Fit New Technologies

The “Governing Green Power” conference was held in Honolulu at the University of Hawai`i at Mānoa, March 28-30, 2017. The motivation for the conference was …

A Scoping Study for Climate Action Planning in Kauaʻi

This report documents best practices for county-level climate action plans (CAPs), with considerations for Kaua‘i. A CAP is primarily a process by which a jurisdiction …

Joint Management of an Interconnected Coastal Aquifer and Invasive Tree

Kiawe (Prosopis pallida), a mesquite tree considered invasive in many parts of the world including Hawai‘i, has been shown to reduce regional groundwater levels via …