Paid Tools
PV Capacity & Yield Calculator

Design and compare up to six solar panel layouts—Fixed-Tilt (wide / optimal / dense), East-West, and Single-Axis Tracker (optimal / dense)—in just a few seconds.

Simply enter your site’s latitude and longitude, the available land area, and module specifications; then click Refresh. The workbook will:

  • Auto-size each layout based on your terrain (pitch, shading, ground coverage).
  • Fetch live solar data from the official PVGIS API.
  • Calculate monthly and annual energy (E_d, E_m), specific yield (kWh/kWp), performance ratio, losses, and more.

This tool is ideal for developers, engineers, consultants, or solar investors who need a quick and reliable yield check without relying on complex software like PVSyst.

PV String Sizing Configurator

The PV String Inverter Sizing Configurator is a powerful Excel-based tool for solar professionals, engineers, and enthusiasts to quickly and accurately match PV modules with inverters. It calculates optimal string lengths, checks voltage/current limits, and verifies compatibility across temperature conditions. With real-time feedback, clear visuals, and built-in databases, it simplifies sizing into an intuitive, error-free process. Ideal for speeding up designs while ensuring safety, performance, and compliance—so you can focus on engineering decisions, not manual calculations.

Key benefits:

✅ Professional-grade results in minutes without complex software

✅ Instant validation of PV module and inverter compatibility

✅ Accurate sizing under any temperature scenario

BESS Sizing & Dispatch Tool

Configure your battery system by entering its energy capacity and charge/discharge power.
Upload hourly PV production data, define preferred charging (low price) and discharging (high price) hours, and set your grid export limit.
The tool automatically simulates energy flows, combining price arbitrage, time shifting, and PV peak shaving strategies.
Results are presented in both hourly and monthly views for quick analysis.

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