Hey Product Hunt! 👋 I built Solar Systems Designer out of pure frustration. I kept seeing solar installations fail—not because the installer was bad at math, but because of hidden engineering oversights. An undersized inverter frying due to motor surge current, or a battery bank taking 4 sunny days to recharge after a cloudy day. Existing tools just spit out numbers. I wanted a tool that acts like a senior engineer looking over your shoulder, tapping you on the shoulder saying "Hey, this inverter won't survive that motor's starting surge." It started as a simple calculator, but evolved to include regional efficiency factors, 3 distinct sizing methods, and deep safety checks. We even built a Telegram Bot because so many technicians in the field rely on their phones rather than laptops. I’m here all day to answer questions! Try running a calculation with a heavy motor load and see what warning you get. Let me know what you think! 🚀

Solar Systems Designer

Engineer-grade solar sizing with real-time safety warnings

Engineer-grade solar sizing with real-time safety warnings