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USC study shows promising potential for giant-kelp-based biofuel with depth-cycling approach

Green Car Congress

physically moving the macroalgae between deep nutrient-rich water at night and shallow depths within the photic zone during the day to optimize growth. 13 C values suggesting that the depth-cycled kelp were not nitrogen-deficient and assimilated nutrients from deep water. The researchers used a depth-cycling approach—i.e.,

Mariner 468
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Berkeley Lab/U. Hawaii team provides direct experimental evidence for mechanism for PAH formation in combustion; cleaner fuels could result

Green Car Congress

Researchers at the Department of Energy’s Lawrence Berkeley National Lab (Berkeley Lab) and the University of Hawaii have provided direct experimental evidence for the validity of a proposed mechanism for the first step in the process that transforms gas-phase molecules into solid particles such as soot and other carbon-based compounds.

Hawaii 218
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Insight into benzene formation could help development of cleaner combustion engines

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The industrial processes behind crude oil refineries and the inner-workings of gas-powered combustion engines can emit PAHs, which can form into toxic air pollutants such as soot. They believe that the finding could one day lead to cleaner combustion engines. This work was supported by the DOE Office of Science. Zagidullin, Valeriy N.

Cleaner 243
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Hawaii opts for EVs and renewable energy

Revenge of the Electric Car

My wife, Zan, and I were recently on the Big Island, Hawaii, and while there we toured the state’s only geothermal plant. Hawaii's 30 megawatt geothermal control room. An injection well pumps water into this hot layer where it is turned to steam. There is no pollution to speak of with these plants.

Hawaii 100
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Converting Coal Power Plants to Nuclear Gains Steam

Cars That Think

Most nuclear plants around the world today are large light-water reactors, with capacities well over a gigawatt—quite a bit more than typical coal plants. Large reactors need consistent and prolific water sources to cool themselves, something not every old coal plant can provide. Either option will be an uphill battle.

Coal 145
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Sandia Labs project team building fuel cell cold ironing system for deployment at Port of Honolulu in 2015

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Ports have been a major source of water and air pollution in the US, but remained relatively unregulated until recent years. The Hawaii project is jointly sponsored by the US Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) and by the US Department of Transportation’s Maritime Administration (MARAD).

Honolulu 246
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Sandia-led team designs feasible hydrogen fuel-cell coastal research vessel; implications for large hydrogen-fueled vessels

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and criteria pollutant (smog) emissions were estimated for the Zero-V based on a complete “well-to-waves” (WTW) analysis. The situation is dramatically improved using renewable hydrogen, such as that made from biogas, or by water electrolysis using wind or low-carbon nuclear power. The annual WTW CO 2 (eq.) Gigagrams (Gg) of CO 2 (eq.)

Hydrogen 315