solar panel vs solar array

solar panel and solar array both are nouns.

Word	Noun	Adjective	Verb	Adverb
solar panel	Yes	No	No	No
solar array	Yes	No	No	No

As nouns, solar panel and solar array are synonyms defined as:

solar panel and solar array: electrical device consisting of a large array of connected solar cells

Other synonyms of solar panel include solar battery.

solar panel (noun)	solar array (noun)
electrical device consisting of a large array of connected solar cells	electrical device consisting of a large array of connected solar cells