Historical Data
The History endpoint provides detailed historic 15-minute time-series data from 2015 up to yesterday for photovoltaic (PV) systems based on their site's location and installation characteristics. This endpoint supports GET requests that require latitude, longitude, slope, orientation, as well as a start_date and end_date for the requested time range.
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, demand profiles, and more — see the API Reference for the full list.
Advanced Configuration
Shading & Horizon
Configure horizon profiles, row shading, and other shading scenarios.
Tracker Configuration
Set up single-axis and dual-axis tracker systems with custom parameters.
Demand Profiles
Include load profiles to model self-consumption and grid feed-in.
Weather Codes
Reference for weather condition codes returned in the response.
Data Columns
Full reference of all fields available via the required_data parameter.