Solar Planner: Panel & Battery

Thinking about solar? Find out exactly what you need — and whether it pays off — before you talk to an installer. Solar Planner sizes a complete solar system for your home, cabin or business in under a minute. Pick your location, enter your electricity bill or list your appliances, and instantly see how many panels you need, what size inverter and battery to buy, how much energy you'll produce every month and how many years until it pays for itself. REAL SUNSHINE DATA • Uses satellite irradiance records (PVGIS, NASA POWER) for almost anywhere on Earth • Accounts for your roof tilt and direction, system losses and seasonal changes • Works offline after the first lookup COMPLETE SYSTEM SIZING • Number of panels, total kWp and roof area • Inverter size for grid-tied, hybrid or off-grid systems • Battery capacity in kWh and Ah at 12, 24 or 48 V • MPPT charge controller, string layout, cable…