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.
Three Dimensional Learning. The National Research Council's (NRC) Framework describes a vision of what it means to be proficient in science; it rests on a view of science as both a body of knowledge and an evidence-based, model and theory building enterprise that continually extends, refines, and revises knowledge.