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Friends and Renewable Energy
Elizabeth Watson In God's marvelous creation, our planet is continually bathed in new energy from the sun. Winds blow, clouds form, rain falls, plants grow, and all life exists because of this ongoing infusion of energy into the earth's natural systems. Until the industrial revolution of the last two centuries, civilization operated almost entirely on the "daily bread" of solar energy, which in one form or another renews itself regularly. Now, however, we seem locked into a way of life that is dependent on nonrenewable fossil fuels. John Woolman asked us to see whether the seeds of war are in our possessions. The drive for control of petroleum resources is clearly at the root of much deadly conflict today. Global petroleum extraction will peak soon (some experts say as early as 2012); if demand is not restrained, oil prices will soar and wars will continue. World food production is likely to drop as fossil fuel prices rise. The burning of fossil fuels also leads to environmental problemsparticularly climate-changing carbon dioxide (CO2) emissionsthat threaten the long-term future of civilization itself. Our historic testimonies of simplicity, integrity, equality, and peace call us to reexamine our patterns of energy consumption and see what changes are required of us. We can, in fact, live richly, justly, and simply without the heavy reliance on fossil fuels that upset the balance of nature and will soon be used up. When we bring the necessary changes to our homes and places of worship, to our communities, our nation, and the world, we are helping to preserve God's creation for future generations. Choosing renewable electricity The electric utility industry is responsible for about the same amount of atmospheric pollution as transportation. Choosing renewable sources of electricity for our homes and businesses that generate less pollution is a good way to act locally to solve a global problem. Renewable energy sources reduce air pollution, slow global warming, lessen dependence on imported oil, and strengthen local economies. Unfortunately, for a number of economic and regulatory reasons, alternative electricity options have not come to market as fast as some had hoped for. In some states that have introduced electric retail competition you can buy renewable energy directly from electric companies or utilities. If you live in a state without electric competition, you can purchase tradable renewable electricity certificates (TRCs) from renewable sources for specified amounts of electricity. Check out the May-June 2004 Quaker Eco-Bulletin, "Renewable Electricity Is Something Everyone Can Buy," by Ed Dreby. What goals might we set?
Types of renewable energy Biomass. Organic matter from agriculture and forestry waste, municipal and industrial solid waste, and energy crops can be used to generate electricity. Since plants absorb CO2 during growth, there is no net release of greenhouse gases when they are processed as biomass fuel. Photovoltaics. Solar cells convert sunlight directly to electricity. The current system for pricing energy largely ignores environmental impacts. This gives the impression that solar is not competitive with electricity from fossil fuels. But given that the global demand for energy will soon exceed global fossil fuel production, photovoltaic systems are expected to play an increasing role in meeting the energy needs of homes, businesses, and other markets. Solar heating. Capturing and storing solar energy to heat buildings and water has great potential for reducing the world's dependence on fossil fuels. The technology is simple and cost-competitive with conventional heating systems. Wind power. Of all the renewable energy technologies, wind power is currently the most cost-competitive and the fastest growing energy source when compared to fossil-fuel-based electricity generation. Possible dangers to migrating birds and other impacts on wildlife need to be considered in locating wind turbine facilities. Hydroelectric. Electricity can be generated from flowing water in rivers, or from dams or sluices where water passes through turbines. There is good potential for small, low-head dams, which tend to have lower impacts on ecosystems and human livelihoods than large dams. Geothermal. Heat from the earth can be used to produce electricity or to heat water for space heating. Geothermal energy is an especially valuable resource in the western United States. Hydrogen. Vehicles powered by fuel cells can run very efficiently and cleanly on compressed hydrogen. However, hydrogen can only be extracted from hydrogen compounds, such as water (H2O) or methane (CH4). That process consumes more energy than the hydrogen fuel contains, but it may also help increase the supply of portable fuels needed for transportation systems. Using wind and solar for extraction avoids the many environmental problems of fossil fuels. Systemic problems In addition to making personal lifestyle changes, we are called to work for changes in energy policy. Currently, for each dollar the U.S. spends on renewable energy research and development, $5.50 is spent on research and development for fossil and nuclear energy. This ratio should be reversed, to support a transition to renewable energy sources. Also, government subsidies to the fossil fuel and nuclear power industries make those mask the true costs of these energy sources. The public pays twice, once through taxes and again as consumers. We must work for policies that: 1. Get renewable energy on the grid. 2. Create tax incentives for renewable energy technology and eliminate subsidies for coal and nuclear power. 3. Require that a certain percentage of electricity be generated from renewable energy sources. 4. Plan for a percentage of transportation fuels to be derived from biofuels. 5. Increase public funding of renewable energy development and rapid rail transit. 6. Require renewable energy for government facilities and transportation fleets. 7. Increase federal investment in research and development of clean-energy technologies. |
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