DC‑Coupled Solar & Battery Sizing Calculator
Estimate PV Array Size and Energy Output
About This Tool
This solar calculator estimates the minimum PV array size and energy output based on your system configuration. It accounts for inverter limits, DC-coupled charging, and solar irradiance hours. Use it to explore how different setups affect energy yield and clipping losses.
This tool is great for evaluating battery sizing when working with a specific DC-coupled system. If you're wondering, "What battery capacity range makes sense for this setup?"—especially considering power constraints and DC/AC ratio limits—this provides a quick and straightforward first-pass check to guide your decision.
This assumes a DC-Coupled configuration that allows for clipping-recapture which has the DC-DC Converter between the battery and the DC Bus. Hover over the (?) to see the layout.
UpTop Solar's Tools are for estimation purposes only. UpTop Solar accepts no responsibility for errors or omissions. For the most accurate system analysis, contact a local installer or professional engineer.
Set Analysis
Units
Results
- Minimum Estimated PV Array to Recharge over days: kW
- Estimated Inverter Energy Available per Day (Blue): kWh
- Estimated Excess Charging Capacity per Day (Green): kWh
- Estimated Clipped Energy per Day (Yellow): kWh
- Estimated Total Unclipped Energy Available per Day (Blue + Green): kWh