the Information Gateway for Renewable Energy and Energy Efficiency
Datasets are published using the Open Government Data License for public sector information and are therefore free for re-use.
> 3.000 energy-terms including:
This API is a cost-free tagging tool for anyone who provides online resources in the clean energy field. It allows for automated tagging of documents and web content covering renewable energy, energy efficiency and climate-relevant topics.
It can also be used to deepen your content by suggesting related documents from a content pool of resources previously indexed by the API.