Other factors influencing the overall solar panel cost include the efficiency and life expectancy of the solar panels, installation costs including actual installation of the solar panels and electrical connections, additional equipment required such as inverters, batteries and cabling.
context (plural contexts) 1  The surroundings, circumstances, environment, background or settings that determine, specify, or clarify the meaning of an event or other occurrence. ( 2 linguistics) The text in which a word or passage appears and which helps ascertain its meaning.
I can't guess what this object is without knowing where it is from. Context is anything that goes along with the text that could change its meaning. It may mean other text in the same work, or it may mean where you find the text, or who is reading it.