Hotmaps is an open-source heating/cooling mapping and planning toolbox with a default EU28-wide dataset at national and local level. It allows public authorities to identify, analyze, model and map resources and solutions to supply energy needs in a resource and cost-efficient way. Hotmaps can help authorities to develop heating and cooling strategies on local, regional and national scale in line with RES and CO2-Emission targets.

A data repository on District Heating, especially low temperature DH, in Baltic Sea Region countries and a set of ICT tools to provide actors responsible for energy supply systems with basic knowledge that allows an insight into the necessity of future sustainable DH concepts.

X-tendo and its toolbox aim to provide public authorities and implementing agencies with improved compliance, reliability, usability and convergence of next-generation energy performance assessment and certification.

Comprehensive open-access detailed statistics on renewable energy capacity, power generation and renewable energy balances, collected from member states and published by IRENA.

The Celsius Toolbox aims to be a source of knowledge and inspiration for cities interested in developing district energy (district heating and cooling) solutions. It addresses cities which are just beginning to implement small-scale district heating and cooling networks as well as cities with large established systems endeavoring for even smarter and more efficient solutions.

Sustainability is an international, cross-disciplinary, scholarly, peer-reviewed and open access journal of environmental, cultural, economic, and social sustainability of human beings. It provides an advanced forum for studies related to sustainability and sustainable development, and is published semimonthly online by MDPI.