Climate Adaptation

Liquefied Natural Gas: A cleaner fossil fuel that’s cheaper than oil and pairs well with renewable energy

May 21, 2014

By Sherilyn Wee and Michael Roberts Spurred by low natural gas prices and a maturing market for liquefied natural gas (LNG), Hawai‘i Gas received their first shipment of LNG in containers in early April. In phase one of the gas utility’s plan, LNG serves as a backup fuel for locally produced synthetic natural gas (SNG). […]

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Managing a Grid with Green Energy

April 21, 2014

By Michael Roberts The calculator in the last post shows that installing solar is an incredibly valuable investment for households and businesses with the physical and financial ability to do it. The gains are so large that some wonder why the state is nearly breaking its budget to subsidize what would still, even without the […]

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Cost Implications of GHG Regulation in Hawai‘i

April 16, 2014

The State of Hawai‘i and the U.S. are developing greenhouse gas (GHG) emissions reduction regulations in parallel. The State requires that economy-wide GHG emissions be reduced to 1990 levels by the year 2020 and the U.S. Environmental Protection Agency is developing new source performance standards (NSPS) for new electricity generation units. The State Department of […]

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The Costs and Benefits of Installing Solar PV

April 7, 2014

By Michael Roberts Renewable energy presents many new challenges at the system level. Before we get to that, it helps to first look at things from a homeowner’s perspective. The Homeowner’s Solar PV Decision If you’re a homeowner, and you haven’t already installed PV solar, you may want to look into doing it very soon. […]

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Changing climate conditions threaten groundwater recharge. The potential benefits of conserving it are substantial.

February 25, 2014

By Kim Burnett and Christopher Wada Results from a recent statistical exercise suggest that by the end of the 21st century, Hawaii will likely see a 5-10% reduction in precipitation during the wet season and a 5% increase during the dry season (Timm and Diaz 2009). Given that approximately 70% of normal precipitation falls during […]

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Publication: Optimal groundwater management when recharge is declining: a method for valuing the recharge benefits of watershed conservation

February 21, 2014

Demand for water will continue to increase as per capita income rises and the population grows, and climate change can exacerbate the problem through changes in precipitation patterns and quantities, evapotranspiration, and land cover—all of which directly or indirectly affect the amount of water that ultimately infiltrates back into groundwater aquifers. We develop a dynamic […]

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The Challenges of EV Efficiency In Hawaii

July 2, 2013

Earlier this month, U.S. Department of Energy launched a website that calculates “the cost of fueling a vehicle with electricity compared to a similar vehicle that runs on gasoline”. The mission of this gadget is to encourage consumers to switch to electric cars by: • bringing greater transparency to vehicle operating costs • helping drivers determine how […]

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Sustainable Development and the Hawaii Clean Energy Initiative: An Economic Assessment

March 8, 2013

The connection between the emerging field of sustainability science and the economics of sustainable development has motivated a line of interdisciplinary research inspired by the notion of “positive sustainability.” This notion is founded on three principles or pillars: (1) adopting a complex systems approach to modeling and analysis, integrating natural resource systems, the environment, and […]

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Hawaii’s Proposed 400MW Wind Energy Project Explained

November 1, 2012

HOW WILL THE PROPOSED 400 MW WIND ENERGY PROJECT CONTRIBUTE TO THE STATE’S RENEWABLE ENERGY GOALS? Hawaii has one of the most stringent Renewable Portfolio Standard (RPS)* policies in the country as well as the highest electricity rates due to dependence on oil for electricity generation (Coffman et al., 2012). As such, renewable energy technologies […]

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