Please note! Course description is confirmed for two academic years, which means that in general, e.g. Learning outcomes, assessment methods and key content stays unchanged. However, via course syllabus, it is possible to specify or change the course execution in each realization of the course, such as how the contact sessions are organized, assessment methods weighted or materials used.


-Understand system level approach to thermal energy storage between Power plants, Industry, Community and building level
-Can prepare fundamental heat and mass balances of thermal energy storages
-Connect the need for thermal energy storage created by both RES-Electricity and RES-Heat
-Compare functioning of different energy storage technologies & materials
-Able to characterize energy storage by technology, temperature, and timescale
-Apply thermal energy storages for a case study

Credits: 5

Schedule: 03.04.2023 - 24.05.2023

Teacher in charge (valid for whole curriculum period):

Teacher in charge (applies in this implementation): Kari Alanne, Annukka Santasalo-Aarnio, Samuel Cross

Contact information for the course (applies in this implementation):

CEFR level (valid for whole curriculum period):

Language of instruction and studies (applies in this implementation):

Teaching language: English. Languages of study attainment: English


  • valid for whole curriculum period:

    This course introduces system level approach to thermal energy storage (TES), considering the fundamentals of TES, and how it can improve the sustainability of energy systems. TES is introduced by assessing the need for its application, including excess heat from industrial and energy sector installations, production and demand mismatch (especially with RES production) and the role of consumer side incentive such as dynamic electricity and heat tariffs. A common approach is taken to all TES technologies emphasizing the importance of temperatures and timescale (seasonal vs short term). The use of TES at different levels is
    then assessed as follows:
    A. Power plants, Industrial level, including use of DH network for storage
    B. Community level e.g. ATES, BTES, CTES, PTES
    C. Buildings e.g. Thermal mass, phase change materials, Chemical storage, DSM with HP ground heat storage (rock/soil)

Assessment Methods and Criteria
  • valid for whole curriculum period:

    Case studies, Personal Assignments, Project

  • valid for whole curriculum period:

    Contact hours (12 x 2 h) = 24 h

    Excursion = 6 h

    Individual assignments and reading = 60 h

    Project work = 44 h

    Assessment session = 3 h 


Substitutes for Courses
SDG: Sustainable Development Goals

    7 Affordable and Clean Energy

    9 Industry, Innovation and Infrastructure

    11 Sustainable Cities and Communities

    13 Climate Action


Further Information
  • valid for whole curriculum period:

    The course is very multidisciplinary and we welcome students from variety of backgrounds.

    Teaching Language : English

    Teaching Period : 2022-2023 Spring IV - V
    2023-2024 Spring IV - V

    Enrollment :

    The course has total amount of 60 participants.

    First priority with students from:

    1) InnoEnergy Energy Storage Masters program

    2) Advanced Energy Solutions Masters program (all majors)

    Registration for the course via Sisu (