Distributed power generation: planning and evaluation by H. Lee Willis

By H. Lee Willis

Within the view of many strength specialists, disbursed energy iteration represents the paradigm of the longer term. dispensed strength new release: making plans and assessment explores the coaching and research of dispensed turbines (DGs) for residential, advertisement and business, in addition to electrical application functions. It examines disbursed iteration as opposed to conventional, centralized strength structures, strength calls for, reliability overview, making plans approaches, expenditures, reciprocating piston engine DGs, gasoline turbine powered DGs, gasoline mobilephone powered DGs, renewable source DGs, and extra. The authors contain thoughts and guidance for DG planners, and various case reports illustrate the discussions.

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Some of the most competitive "exotic" large-generator technologies involve large coal plants, whose net efficiency may not equal the best DG units, but whose cost would be much lower. Coal is very plentiful, and cheap. A large mining and transportation infrastructure for it already exists. Thus, it could be quite competitive against DG, particularly if natural gas prices increase slightly, as may very well occur with the advent of a great deal of DG driving up demand. , at large central station power plants in rural areas.

Disadvantages of DG DG is not perfect, having its downside compared to other alternatives. Chief among the factors that can often be viewed as disadvantages are: Ownership and operation. The DG unit must be owned and operated at a remote site(s). Even the most automated and trouble-free types of DG require routine inspection and service in order to assure that they continue to operate reliably and efficiently. For a utility, DG means that it must service additional equipment, which is generally more complicated than T&D equipment, at various sites, increasing its service costs.

Most DG units are available in small, unit sizes, or modules, and are often intended to be used as a group of several such units at any one site. This chapter explores modularity and its interaction with reliability and short- and long-term costs, and how planners pick the number and sizes of the DG units at a site. Variations in this chapter's case study are used to show how modularity can be tailored by the planner to vary the availability of power, to offer economy, and to provide flexibility for unknown future growth in the demand.

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