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.

DH Knowledge

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.

IRENA Data and Statistics

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

Guide to District Heating

Knowledge base and Gudiance for Cities and Towns on District Heating developed by the HeatNetNWE Interreg project.

BPIE Knowledge Hub

The BPIE Knowledge Hub is an extensive library of resources for the latest knowledge related to energy performance of buildings.

SECAP Guidebook (3 Parts)

Official JRC guidebook in three parts on how to write a Sustainable Energy and Climate Action Plan.

Covenant of Mayors - Reporting Guidelines

Guidelines to complete the data compilation and reporting framework required to eavery signator of the Covenant of Mayors.

Covenant of Mayors - 2019 Assessment

Scientific assessment of CoM regarding the pillars of mitigation and adaptation of climate change. This report describes the plans submitted by signatories, examines planned and implemented policies and gives an overview on the progresses in terms of energy consumption, GHG emission reduction and resilience increase.

MyConvenant Tutorial #1 - My Strategy

Video tutorial of the Covenant of Mayors to complete the section My Strategy.

MyConvenant Tutorial #2 - Emission Inventory

Video tutorial of the Covenant of Mayors to complete the section Emission Inventory.

MyConvenant Tutorial #3 - Risks and Vulnerability

Video tutorial of the Covenant of Mayors to complete the section Risks and Vulnerability.

MyConvenant Tutorial #4 - My Actions

Video tutorial of the Covenant of Mayors to complete the section My Actions.

JRC Publications - EU SCIENCE HUB

EU Sciece Hub with publications of the Joint Research Centre (JRC), providing EU citizens, governments and businesses with free digital access to official information and data from JRC research.

Celcius Toolbox

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.

EU Funding and Tender opportunities supporting public authorities in driving the energy transition

European Commission Funding & tender opportunitiesSingle Electronic Data Interchange Area (SEDIA)

Sustainability journal

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.

Quick Reference Guide Monitoring SECAP implementation

Short guidelines to complete the data monitoring and reporting of SECAP implementation for signatories of the Covenant of Mayors.

Compete4SECAP Project

The Compete4SECAP project (C4S) aimed at helping local authorities put their existing Sustainable Energy Action Plans (SEAPs) into action.

Interreg CENTRAL EUROPE - Low Carbon Priority

Interreg Cental Europe, Low Carbon Priority node on projects, results and publications

EBRD Green Economy Transition Knowledge Hub

The EBRD Green Economy Transition knowledge hub showcases GET-related publications about energy efficiency in the corporate and energy sector, about the EBRD’s Green Economy Finance Facilities, climate change adaptation and the Bank’s climate finance partnerships.

Naturklima - Gipuzkoa Cliate Change foundation Knowledge Hub

Knowledge Hub of Naturklima, the Gipuzkoa Provincial Council's Climate Change Foundation, attached to the Council’s Department of the Environment.


Eurocities is the network of more than 190 cities in 38 countries, representing 130 million people. Through joint work, knowledge-sharing and coordinated Europe-wide activity, they ensure that cities and their people are heard in Europe

Euroheat - Knowledge Hub

Comprehensive database of resources linked to district heating and cooling, including academic reports & studies, research projects outcomes, market analysis as well as other relevant content to the sector.

Smart Cities Market Place

EU marketplace platform that aims to bring cities, industries, SMEs, investors, researchers and other smart city actors together.


ManagEnergy is a European Commission initiative dedicated to regional and local energy agencies with the objectives of assisting them in becoming leaders in the energy transition and of increasing sustainable energy investments in regions and cities.

Interreg - EU Regional Development Fund

Interreg Europe helps regional and local governments across Europe to develop and deliver better policy. We create an environment and opportunities for sharing solutions and policy learning.


This publication highlights examples of climate mitigation and adaptation strategies carried out by twelve Eurocities member cities from all over Europe in four different sectors: buildings; energy; governance; and transport.

Renovation wave

The Commission published on 14 October 2020 a new strategy to boost renovation called "A Renovation Wave for Europe – Greening our buildings, creating jobs, improving lives" (COM(2020)662).

ALliance for Deep RENovation in buildings - encouraging investment

ALDERN is the ALliance for Deep RENovation in buildings. encouraging investment and accelerating the movement towards a nearly zero energy non-residential building stock accross the EU.


iBRoad focuses on individual building renovation roadmaps and building logbooks, in support of deep renovations in the residential sector.


Building upon results from a number of relevant European projects, TripleA-reno aims to achieve a set of specific measurable qualitative objectives in the efficient building sector.

THERMOS TOOL for designing heat networks

THERMOS TOOL: Open Source heating/cooling network calculation tool

Upgrade DH

Database of collection how to uprade district heating networks in Europe

Celsius toolbox about district energy

Knowledge base for district energy

Waste heat

Simple to for estimating waste heat potentials in sveral countries

Technology data cost sheets

Cost data sheets for energy generation and distribution provided by the Danish Enrgy Agency


Tool for analysing and simulating the energy system of a neighbourhood

Photovoltaic Geographical Information System (PVGIS)

Photovoltaic Geographical Information System

Spatial Planning in Denmark

Guideline about Spatial Planning based on the case study Denmark

Knowledge Platform for Citizen Engagement

Organizing Engagement is an online publication dedicated to advancing knowledge, understanding, and practice at the intersection of education organizing, engagement, and equity. Our website collects ideas, models, strategies, policies, and research, and then shares them in the form of introductions, interviews, profiles, and other content. Our target group are local leaders, organizers, and practitioners, as well as the many others working in partnership and solidarity with them.

Citizen participation by the Government of the Netherlands

More and more people are taking the initiative to make their local neighbourhood more liveable, for instance by helping to maintain playgrounds or green spaces. As a result, the relationship between government and society is changing. On one page that is part of the website of the government of the Netherlands you can find information about Citizen participation, Government participation, Do-ocracy And links to organisations that can support you.

COMBI Project

Calculating and operationalising the multiple benefits of Energy Efficiency in Europe


The Odyssee database contains detailed energy consumption by end-use and their drivers as well as energy efficiency and CO2 related indicators.


The IEA DHC deals with the design, performance and operation of distribution systems and consumer installations.


The GEORISK project works to establish risk insurance all over Europe and in some key target third countries to cover risks associated with the development and the operation of a deep geothermal plant.

Climate investment fund

The knowledge center offers reports and case studies of finnancing practicies in different topics such as capacity building, stakeholder engament, financing, etc.

European Investment Bank

The knowledge center offers reports, data, etc. as well as online courses, podcasts, studies, and publications to access the bank's expertise