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.
In philosophy, the study of knowledge is called epistemology; the philosopher Plato famously defined knowledge as justified true belief, though this definition is now thought by some analytic philosophers [citation needed] to be problematic because of the Gettier problems while others defend the platonic definition.