Technology Assumptions and Issues

The base technology is assumed to be located in New England (FERC Region 1), which is considered a representative region. The use of biomass power could be widespread, and is excluded only from desert regions. In 1994, of the 3 EJ of biomass energy consumed in the U.S., 1.055 EJ were used to produce power [12]. These values include biomass residues, municipal solid waste, and landfill gas. Although biomass is being used to produce power in many locations across the U.S., biomass electricity production is currently concentrated in New England, the South Atlantic, and th e West (FERC Regions 1, 4, and 9, respectively).

An abundant and reliable supply of low-cost biomass feedstock is critical for significant growth to occur in the biomass power industry. The use of biomass residues, about 35 Tg/yr today, is expected to expand throughout the period, reaching about 50 Tg/yr. A key premise of the U.S. National Biomass Power Program is that a dramatic expansio n in future availability of dedicated feedstocks will occur in the 2005-2020 time frame, growing to about 90 Tg/yr b y 2020. For purposes of this analysis, the use of dedicated feedstock is assumed.

Direct-fired biomass technology will provide base-loaded electricity and is operated in a way similar to fossil an d nuclear plants. Direct-fired biomass technology is commercial technology. All of the assumed advances i n performance involve the incorporation of proven commercial technology. Therefore, there are no R&D issues involved in the power station technology. However, there is R&D required to determine additives and boiler modifications t o permit the combustion of high-alkali biomass, such as wheat straw, without fouling of boiler heat exchange surfaces .

Solar Stirling Engine Basics Explained

Solar Stirling Engine Basics Explained

The solar Stirling engine is progressively becoming a viable alternative to solar panels for its higher efficiency. Stirling engines might be the best way to harvest the power provided by the sun. This is an easy-to-understand explanation of how Stirling engines work, the different types, and why they are more efficient than steam engines.

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