# Heat Roadmap Europe > By collecting the waste heat from both industry and electricity production and using smart district heating grids, it is possible to save all of the natural gas currently used for heating buildings in Europe. This would result in not only monetary savings, but also in a considerable CO2 emissions reduction. This has been the focus of the Heat Roadmap Europe (HRE) study series since 2012. Location: Global ## Categories - District heating - Energy & Utilities ## Documents - [Business profile](https://directory.websdocs.com/business/heat-roadmap-europe) - [Directory JSON](https://directory.websdocs.com/business/heat-roadmap-europe.json) - [Schema.org JSON-LD](https://directory.websdocs.com/business/heat-roadmap-europe/schema.jsonld) - [Directory sitemap](https://directory.websdocs.com/sitemap.xml) - [Directory discovery manifest](https://directory.websdocs.com/.well-known/asg-directory.json) - [Directory OpenAPI](https://directory.websdocs.com/api/openapi.json) - [Official website](https://heatroadmap.eu/)