This helps make informed decisions and develop innovative solutions. An example of this is the use of building age and renovation years to calculate the energy requirements in buildings. The disclosure of data helps, for example, to integrate renewable energy into electricity and heating networks. By combining open energy and weather data, forecast models for renewable energy production can be improved and the stability of the network can be increased. The data sets presented here were collected through accompanying research using various measures, including the 2021 questionnaire, interviews with projects or our own research. Our classification is initially based on publicly available information. We take the following aspects into account:

• Use case category – Which category can the data set be assigned to?
• Scope – Typical application area in which the data set is used. An application area describes all possible methods and data sets that can be used to achieve a specific purpose.
• Availability – Under what license is the data available? Are these free or paid?

Additional information:

Open Power System Data
The platform provides extensive data on electricity generation, consumption and transmission in different countries.

OpenEI
OpenEI is a platform that provides comprehensive information on renewable energy worldwide. Researchers can access data on renewable energy resources, technologies, policy frameworks and market data to support their research and analysis.

OpenEnergy Platform
The Openenergy Platform aims to make the modeling of the energy system transparent. For this purpose, information and digital tools on the topic of energy are collected.