Projects per year
Personal profile
Short bio
Nations are battling against climate change and are urged to reduce greenhouse gas emissions. EU is struggling to reach even 2030 climate targets based on EC's recent assessment. More GHG reductions are needed together with carbon dioxide removals to reach climate neutral Europe by 2050, says our most recent publication (Markkanen et al 2024).
I currently pursue a PhD in Aalto University in the department of Engineering (Energy Technology). In my research, I study how energy systems need to change in Europe and in Finland to reach the climate targets while promoting sustainability regarding e.g. in the use of bioenergy. Currently, I am modelling cost-efficient negative emission pathways for Finland as a part of the REPower-CEST EU-project. Later on, I will model decarbonisation pathways for the entire Europe with a special focus on how to tackle the residual emissions from hard-to-abate sectors like transport or industry.
My methods include energy system modelling using PET-VTT (Pan-European TIMES-VTT, based on JRC-EU-TIMES-model) together with data analysis performed using python and R programming to perfect the scenario assessments and get the most out the data we have. In the project work, we actively develop PET-VTT to keep it up-to-date, as more assessments of the development of energy systems especially regarding production electrofuels (P2X) and related carbon capture and utilisation are needed in carbon-negative, resilient Europe.
In addition to energy system modelling, you can contact me about:
- foresight for clean energy transition
- carbon footprint, handprint
- climate change mitigation and adaptation
- climate plans for cities and regions
- life cycle assessments
- techno-economic assessments
- transport modelling
- transport scenarios
- net-zero transport
- net-zero building-sector
- net-zero industry in Europe
- climate and energy policies
- policy impact assessments
Education/Academic qualification
Science, Master, Integrated Climate System Sciences, University of Hamburg
1 Oct 2016 → 24 Jul 2018
Award Date: 24 Jul 2018
Engineering, Bachelor, Environmental Engineering, Metropolia University of Applied Sciences
Award Date: 30 Sept 2016
Engineering, Doctorate, Aalto University, School of Engineering
18 Jun 2024 → …
Skills and expertise
- TIMES
- R
- Python
- modelling
- statistics
- Renewable energy
- climate change
- Climate policies
- negative emissions
- energy systems
- energy system modelling
- carbon dioxide removals
- programming
- databases
- SQL
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 4 Quality Education -
SDG 7 Affordable and Clean Energy -
SDG 9 Industry, Innovation, and Infrastructure -
SDG 11 Sustainable Cities and Communities -
SDG 12 Responsible Consumption and Production -
SDG 13 Climate Action -
SDG 15 Life on Land -
SDG 17 Partnerships for the Goals
Fingerprint
Dive into the research topics where Johanna Mehnert is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
- 12 Similar Profiles
Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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PATH2ZERO: Accelerating net-zero transformation by advancing Europe’s transport pathways and cross-sectoral synergies
Aittoniemi, E. (Manager), Lauhkonen, A. (Participant), Koljonen, T. (Participant) & Mehnert, J. (Participant)
1/01/25 → 31/12/27
Project: EU project
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REPower-CEST: Clean Energy System Transition (REPower-CEST)
Similä, L. (Manager), Koljonen, T. (Participant), Lindroos, T. J. (Participant), Halonen, M. (Participant), Koponen, K. (Participant), Aittoniemi, E. (Participant), Ala-Juusela, M. (Participant), Cole, C. (Participant), Correia, S. (Participant), Eerolainen, L. (Participant), Forsström, J. (Participant), Gutierrez, A. W. (Participant), Hiltunen, P. (Participant), Ikonen, J.-P. (Participant), Ikäheimo, J. (Participant), Jasiunas, J. (Participant), Jegoroff, M. (Participant), Jokinen, T. (Participant), Järnefelt, V. (Participant), Kanto, T. (Participant), Karlsson, T. (Participant), Kellomäki, J. (Participant), Kirppu, H. (Participant), Koreneff, G. (Participant), Korpijärvi, K. (Participant), Kumpulainen, T. (Participant), Kurki, S. (Participant), Lamuela Orta, C. (Participant), Lauhkonen, A. (Participant), Lehtilä, A. (Participant), Peurala, M. (Participant), Mehnert, J. (Participant), Niemi, A. (Participant), Nousiainen, E. (Participant), Pakarinen, O. (Participant), Pursiheimo, E. (Participant), Rämä, M. (Participant), Sassi, J. (Participant), Sundqvist, H. (Participant), Vainikainen, S. (Participant), Vainio, T. (Participant), Åkerman, M. (Participant) & Åman, R. (Participant)
1/01/24 → 30/06/26
Project: Finnish government project
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CO2 DataHub
Lavikka, R. (Manager), Vainio-Kaila, T. (Participant), Kiviniemi, M. (Participant), Vatanen, S. (Participant), Orko, I. (Participant) & Mehnert, J. (Participant)
1/03/22 → 30/06/23
Project: Consultancy
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Työkoneiden päästöjen perusennuste
Mehnert, J. (Manager) & Lauhkonen, A. (Participant)
1/02/21 → 31/03/21
Project: Finnish government project
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NEGEM: Quantifying and Deploying Responsible Negative Emissions in Climate Resilient Pathways
Koponen, K. (Manager), Koljonen, T. (Participant), Similä, L. (Participant), Lehtilä, A. (Participant), Kiviranta, K. (Participant), Mäki, E. (Participant) & Mehnert, J. (Participant)
1/06/20 → 31/05/24
Project: EU project
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Sustainable negative emissions in Europe: Evaluating scenarios to meet carbon neutrality by 2050
Markkanen, J., Koponen, K. & Lehtilä, A., 1 Nov 2024, In: Environmental Research Letters. 19, 114050.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile7 Link opens in a new tab Citations (Scopus)135 Downloads (Pure) -
Perusskenaariot energia- ja ilmastotoimien kokonaisuudelle kohti päästöttömyyttä (PEIKKO)
Translated title of the contribution :Baseline scenarios for energy and climate policy package towards zero emissions Research output: Book/Report › Report
Open Access -
Long-term scenarios and energy system impacts of technological carbon dioxide removal deployment in Finland
Mehnert, J., Koponen, K., Lindroos, T. J., Koljonen, T. & Kirppu, H., 2026, In: Environmental Research: Energy. 3, 2, 19 p., 025002.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Quantifying and Deploying Responsible Carbon Dioxide Removals in the Nordic Countries
Koponen, K. & Mehnert, J., 1 Jan 2026, Routledge Handbook of Arctic Energy Transition. Noble, B., Poelzer, G., Holdmann, G., Biswas, S. & Hirshberg, D. (eds.). Taylor & Francis, p. 187-199 13 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Scientific › peer-review
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Siirtymä kestävään energiajärjestelmään: tiekartta ja synteesiraportti
Soimakallio, S., Koljonen, T., Kivinen, M., Karhinen, S., Kivimaa, P., Lindroos, T. J., Sokka, L., Halonen, M., Kopsakangas-Savolainen, M., Niemistö, J., Seppälä, J., Similä, L., Ala-Juusela, M., Alapieti, T., Arola, T., Eerolainen, L., Eloranta, T., Entsalo, H., Faehnle, M. & Ferreira, E. & 41 others, , May 2026, Finnish Environment Institute SYKE. 186 p. (Suomen ympäristökeskuksen raportteja; No. 17/2026).Research output: Book/Report › Report
Open Access
Datasets
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CDR deployment in Europe, NEGEM-scenario results from Pan-European TIMES-VTT energy system modelling as reported in Markkanen et al. (2024)
Markkanen, J. (Creator), Koponen, K. (Contributor) & Lehtilä, A. (Contributor), Zenodo, 28 Jun 2024
DOI: 10.5281/zenodo.12579950, https://zenodo.org/records/12579950
Dataset
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PET-VTT (Pan-European TIMES-VTT)
Mehnert, J. (Creator), Lehtilä, A. (Contributor), Kellomäki, J. (Contributor), Koponen, K. (Contributor), Rämä, M. (Contributor), Lindroos, T. J. (Contributor) & Koljonen, T. (Contributor), Zenodo, 8 Jan 2026
Dataset