Wind power is capital intensive, but has no fuel costs. The price of wind power is therefore much more stable than the volatile prices of fossil fuel sources. The marginal cost of wind energy once a station is constructed is usually less than 1-cent per kWÂ·h.
The knowledge framework is a tool for analysis. 1  There are five parts to the framework: 2  scope and applications. 3  key concepts and language. 4  methodology. 5  key historical development. 6  links with personal knowledge.
The definition of knowledge is a matter of ongoing debate among philosophers in the field of epistemology. The classical definition, described but not ultimately endorsed by Plato, specifies that a statement must meet three criteria in order to be considered knowledge: it must be justified, true, and believed.