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Alternatives, however, are problematic, especially in light of the numbers involved. It goes without saying that coming up with 2,800 gigawatts or so of power to replace the fossil fuels we burn is not a trivial proposition. If a single source analogous to fossil fuels is sought, the problem is daunting indeed.
This validates the sensibility of the current research and development policy that encourages development of as many renewable energy sources as can be made economically viable.
The state of Florida has recognized this need for a diversified energy portfolio with investment in a variety of new renewable technologies. All of them, in one way or another, are related to forms of energy that are easily traced to the sun. Photovoltaic conversion, direct solar heating, biofuels development and even wind generation are all being investigated under the auspices of the Florida Energy Systems Consortium, a research group comprising the state universities.
Further, it is taking an upfront, careful look at potential environmental impacts. These range from the effect of power extraction on the resource itself to impacts on the physical and biological characteristics of the ocean bottom to interactions with marine life in the water column. By providing instrumentation to investigate these and other environmental questions, the center can use small, prototype test systems as experiments involving minimal impact to gather data that can be scaled up to larger, commercial-scale systems.
The center's goal is to see such commercial-scale systems in the water, generating power, providing a significant part of a diversified energy portfolio for Florida's future. The test-bed facility will expedite testing and evaluation of new systems, eliminating the need for significant private-sector investment in the process, and open the door to a new world of economic opportunity for ocean energy providers.
More generally, it will also provide a foundation for U.S. industry to be competitive globally in the potential international market. The gulfstream, after all, is but one current in the ocean. And that, perhaps, is the real payoff: a global diversified renewables portfolio.
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This article originally appeared in the
July/August 2009 issue.
