Ongoing
Welcome to the Project 62 of HPT TCP
Heat pumps for multi-family residential buildings in cities
This Project (formerly known as Annex) focuses on heat pump solutions for multi-family houses in high-density cities. In response to the demand of the participating countries new buildings and retrofit will be considered, as well as buildings with higher specific heating demand.
01 January 2023 -
31 December 2025
Lead country: Germany
Participating countries: Belgium, China, France, Italy, Spain, Sweden, Switzerland
News About Project 62.
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From "can it work?" to "how can it scale?": Project 62 shares its final results
On 16 July 2026, the IEA HPT Project 62 team held its final webinar, drawing a line under three years of work on heat pumps for multi-family residential buildings in dense cities. Over roughly two hours, partners from across Europe presented what the project set out to answer, what the...
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Project 62 - Final Webinar
After 3 years, Project 62 is wrapped. The participating countries (Belgium, China, France, Germany, Italy, Spain, Sweden, and Switzerland) spent their efforts on exploring heat pump solutions for multi-family buildings in high density cities. Through a number of different tasks (see image), the findings of Project 62 offer insights on a holistic framework that couples a refined General Classification of heat pump solutions with an expanding case-study database and a decision-support tool to...
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Heating Cities in Transition 📍Sweden
Across Europe and much of the industrialized world, cities are grappling with one of the largest energy transitions of our time: how to decarbonize the heating of homes and buildings. Heating represents a significant share of global energy use and greenhouse gas emissions, particularly in urban areas where multi-family residential...
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Heating transition made accesible and engaging through an infographic colouring book
Heating is political, complex, and crucial for Europe’s climate goals. Although the sector is responsible for almost half of Europe’s energy consumption, its necessary decarbonization is often overshadowed by dry debates. The heating transition book combines strong technological and political messages with a playful comic style – because the book...