For 75% offset on my house Tesla roof is 185k for a 3k sqft house I use about 3200kwhr a monthI know I’m too young to own a house,but Tesla also has solar roof shingles. Actually not bad. Idk how much they are, supposed to have like a 20+ yr life. But I don’t think they will withstand here in Houston. There ratings for wind is up to a cat3 I believe. But I like the concept. Seems cool now but probably not practical for few decades.