How long does a typical PV system last? Most professionally-installed systems will last 30 to 40 years. Most solar modules are warranted to last 25 years at 80% of their original power production. Richie2019-01-30T16:38:29-05:00January 30th, 2019|Categories: SOLAR| Share this with your connections! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail Leave A Comment Cancel replyYou must be logged in to post a comment.