ReHeat – Regenerating Local Waste Heat for Sustainable Growth and Business

ReHeat – Regenerating Local Waste Heat for Sustainable Growth and Business

Duration: 1 January 2026 – 31 December 2027
Funding: Metropolia: EU and state funding €148,760 (70%)
Total budget: €212,514
Partners: Metropolia University of Applied Sciences (Coordinator) and Aalto University
Parallel project: KIEHU– Circular Economy Heat Strorage (starting soon!)

The purpose of the LÄMLI project is to seek out, identify, and develop new solutions and operating models for utilizing smaller waste heat flows in regional energy planning. The objectives are to increase the energy efficiency of residential construction, support climate goals, and create new, sustainable business opportunities, particularly at the intersection of the circular economy and energy services.

Main objectives

• Develop an analysis method based on waste heat inventory and simulation results to support business operations and investments in two different types of urban areas
• Promote networking and information exchange between SMEs and other actors around energy cooperation related to the utilization of waste heat
• Build operational concepts to support decision-making
• Strengthen the participating companies' understanding of the potential of the waste heat market
• Effectively utilize the opportunities offered by local heating

In Finland, waste heat flows are an underutilized resource in regional energy planning and business development. Waste heat is generated for example in industrial processes, building ventilation and heating, data center and refrigeration cooling, transport, energy production, and wastewater treatment. The surplus heat released in these processes can be utilized cost-effectively, and even create new business opportunities.

Currently, the effective and wide-scale utilization of energy efficiency actions is hindered by the lack of business models, challenges in cooperation, the limited practical guidance in regional energy planning, and a lack of knowledge about harmonizing interaction between different energy systems.

Strengthening SME Capabilities and Regional Cooperation

The goal of this two-year project is to find techno-economically viable solutions and new business models that enable the use of local heat sources, as well as the emergence of new Energy-as-a-Service services in collaboration with different actors.

The LÄMLI project proceeds in parallel with the KIEHU project, as these two projects share the same core idea but approach the utilization of waste heat from different perspectives and with different techno-economic focuses.

Follow the project’s progress and events

This website serves as the official project catalogue page of Metropolia University of Applied Sciences. Our main communication channel will soon be launched on our dedicated project website, where you will find up-to-date news and events. The link will be added once the site is published.

Updates from both KIEHU and LÄMLI can also be followed on our LinkedIn showcase page, where we share information on project progress, implemented measures and upcoming events. More information is also available on the website of the parallel project partner (Aalto University).

Contacts

Daniel Korhonen
Project Manager
Metropolia UAS
Daniel.Korhonen [at] metropolia.fi (Daniel[dot]Korhonen[at]metropolia[dot]fi)
See Daniel Korhonen's profile on PeopleFinder