Why would a solar company need software engineers? It seems to me like a mechanical and electrical engineering field. It would never occur to me to look for a j

Why would a solar company need software engineers? It seems to me like a mechanical and electrical engineering field. It would never occur to me to look for a job in the field because I see no way my skills would be relevant. Nor am I interested in being someone else's cost center. I am no solar skeptic; I have had a solar array on my house for three years now. I just don't see how you get from "solar is here now and not something we are still waiting for" to "you should get involved in the industry".