A 200W panel will likely generate somewhere between 800 and 1200 watt-hours (or 0. Keep in mind that things like weather, shadows, the angle of your panel, and your location all play a big role. . Real-world performance varies significantly by location: A 200W solar panel produces 600-1,200 Wh daily depending on climate, with Southwest US locations generating twice the energy of Pacific Northwest installations. Plan your system capacity based on winter performance in your specific region. In the next sections, you'll get: Real-world output (not STC fantasy) so you know your daily energy budget. How Much Power Does a 200W Solar Panel Actually Produce? A. . Here are our picks for the best 200-watt solar panels on the market: The best 200-watt panel for you will vary based on your needs. For harnessing the sun's power effectively with 200-watt solar panels, focus on efficiency, durability, and compatibility. Consider top models like Renogy 12V 200W, NODSOLEX NS200W, and ECO-WORTHY Kit.