It may be comprised by 8 panels of 125 W or 5 panels of 200w, or 4 panels of 250w, etc. In all different solutions you should be able to gather comparable solar panel cost information in order to be able to compare the different solutions.
THE CAT is a classic example of context effect. We have little trouble reading H and A in their appropriate contexts, even though they take on the same form in each word. A context effect is an aspect of cognitive psychology that describes the influence of environmental factors on one's perception of a stimulus. The impact of context effects is considered to be part of top-down design. The concept is supported by the theoretical approach to perception known as constructive perception.
Context (language use) In semiotics, linguistics, sociology and anthropology, context refers to those objects or entities which surround a focal event, in these disciplines typically a communicative event, of some kind. Context is a frame that surrounds the event and provides resources for its appropriate interpretation..