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and Orange counties, respectively. These general estimates could be improved with more site - specific analysis and information Additional assessments of local conditions, population density, distribution of wood, competition from pulp mills, restoration activities, and other factors would improve the accuracy of these biomass resource assessments. The following caveats should be considered when interpreting the results presented in this profile: • The supply considered in this profile includes only urban wood waste, logging residues, and pulpwood. It excludes stumps and waste from wood industries. • Because only county -level data were available, homogeneous distribution of resources within counties is assumed. Resource distribution within counties and location of bioenergy generating facilities will influence the actual economic availability of woody biomass suitable for energy generation. More detailed local analysis might consider the distribution of biomass resources within counties, especially for site selection of bioenergy facilities. • The inclusion of other resources such as mill wastes or thinnings from forest management and habitat restoration would increase available resources. • This analysis is not intended to be a definitive resource assessment but is rather meant to provide a starting point for discussions about the feasibility of using wood for energy. Resources can be excluded or added as more information becomes available, and prices can be modified to reflect local conditions. • A rise in the price of petroleum would increase the cost of the resources shown here, as well as costs of conventional energy sources like coal. • Some assumptions made in this analysis are subject to change. For example, large - scale bioenergy development in the area could increase competing demand for wood resources. • Rail transportation, which could substantially reduce transportation costs and increase the procurement area for biomass resources, was not considered in this analysis. • Construction and operation of wood - fueled power plants may have significant local economic impacts. These impacts vary widely among selected counties, depending upon the makeup of the local economy. • Wood fuel represents one of the largest expenditures for a power plant and gives rise to large impacts in the local forestry and forestry services sectors. Other sectors of the local economy are also impacted through the indirect effects associated with purchased supplies and employee household spending. • Economic impacts of a 40 MW power plant are greater than for a 20 MW plant, although not in proportion to the power output, due to economies of scale. For more information about using wood to produce energy, visit 121t. : / /www.iri erfacesouitli.or /wood biomass and read other fact sheets, community economic profiles, and case studies from this program, or I tt : / /www.forestbioerier riet/ to access a number of other resources. 7