Yield Analysis
The Yield endpoint provides mean specific yield values and detailed annual specific yield data for photovoltaic (PV) systems based on their site's location and installation characteristics. This endpoint supports GET requests that require latitude, longitude, as well as the slope and orientation of the PV system. By default, calculations cover the years 2015 to 2024.
For users on the free plan, access is limited to the mean specific yield value calculated over the past 10 years. No per-year breakdown, confidence intervals, or additional detail is included.
Extended data going back to 2007 is available as an add-on. Pass include_historical_data=true and set historical_data_start_year accordingly.
A rate limit of 6 requests per minute applies to prevent abuse. Exceeding this will return a 429 response.
Base URL
The Base URL for this endpoint is:
Code
Example Request
The following examples demonstrate how to pass the required parameters and include the API key
for authentication. The example uses a slope of 30 degrees, an orientation of 180 degrees (south-facing), and
the location is set to Rosenheim, Germany with coordinates latitude: 47.84812, longitude: 12.06231.
This covers the base configuration. The API supports many additional parameters for shading, tracker systems, module characteristics, and more — see the API Reference for the full list.