A Reddit post about a beginner DIY solar energy project is drawing attention online after the simple setup became an unexpected lifeline during a major power outage. The first-time builder said they assembled a modest backup system with a 100-watt panel, fuse, charge controller, battery, and inverter, mostly to learn the basics, with a photo of the setup included. Just a week later, a rare storm took down a power line in the area, leaving them w…