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A Sandia National Laboratories project team, including a number of industry partners, is designing and building a cold-ironing fuel cell system that will be deployed in the Port of Honolulu in 2015. Like many operators, the company uses diesel engine generators to provide power to refrigerated containers. Earlier post.).
They modeled three vessel types (large ocean-going vessel [OGV], inland tug/tow, and coastwise OGV) as traveling typical fixed routes using natural gas and emissions control area (ECA)-compliant distillate fuels meeting 2012 and 2015 standards (that is, 10,000 ppm sulfur [S] and 1,000 ppm S, respectively).
Tailpipe emissions are reduced by 230,000 pounds of CO 2 annually each time a conventionally-fueled diesel vehicle is replaced by a Proterra electric bus. Proterra charging systems utilize the universal J1772-CCS Type 1 charging standard, enabling buses, utility vehicles and cars to share the same chargers.
Project partner Young Brothers operated the generator for 10 months powering refrigerated containers in Honolulu, Hawaii. One opportunity to do so was identified in Honolulu Harbor at the Young Brothers Ltd. (YB) By comparison, the net efficiency of a comparable diesel generator efficiency is from 25% to 34% in this same load range.
The island gets on average nearly 3,000 hours of sunshine per year, putting it on a par with Honolulu and Brisbane, Australia. During prolonged outages, they can provide a cleaner and less expensive alternative to emergency diesel generators. Several factors combine to make Puerto Rico an ideal place for solar power and microgrids.
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