--> Think Small For Nascent Alternative Energy Technologies

Pacific Section AAPG Convention

Datapages, Inc.Print this page

Think Small For Nascent Alternative Energy Technologies


Alternative energy sources are needed in the long run, but have obstacles to implementation in today's financial and political climate. With dropping oil prices and a Congress less inclined to fund expensive, and often untested technologies, we need to consider ways to reduce costs, and get the most for our tax dollars. Big corporations prefer big power plants, often in remote locations. They have been counting on the government to subsidize them, for land, for building the plants, and for building transmission lines to where power is needed. Distributed production has several advantages. It can be produced near to where it is needed, as is being done with rooftop solar collectors. New transmission lines are not needed; the electricity goes directly into the distribution network. A similar system can work with small-scale wind turbines and certain geothermal technologies in rural areas. Distributed production is less susceptible to variations in wind or sun that can affect large localized power plants. And distributed networks are far less susceptible to power disruption due to environmental catastrophes or sabotage. They are a viable alternative energy source for rural areas and a valuable supplement in metropolitan areas. In the future, ocean-based wind and wave power generation will be important in the U.S., as most populated areas are near the coast. However, there are many technical and regulatory hurdles to be overcome before it can become a major contributor to our power mix. The ocean can be a hostile environment. Waves have enormous power, and salt water is corrosive. Most proposed sites are in areas with large waves with the aim of maximizing produced energy per installed extraction device. Most wave energy devices fail because they have moving parts that cannot withstand such an environment. Most proposed sites are also far from where energy is needed, and require extensive transmission networks. An alternative approach to these problems is to start smaller, in less stormy seas, and close to where the energy is needed. Devices with few or no external moving parts, and encased in non-corrosive enclosures will be less prone to damage. Devices below the surface or on the ocean floor may be preferable; they would be invisible from shore, and also less affected by the surface waves. They would not extract the maximum energy of the waves, but starting with such a network could prove the technology, and be improved in successive iterations.