Projects per year
Personal profile
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 7 Affordable and Clean Energy -
SDG 9 Industry, Innovation, and Infrastructure
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Dive into the research topics where Jari Hällström is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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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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GridForm: Metrology for efficient grid-forming converters to stabilize future power grids
Hällström, J. (Manager)
1/06/25 → 31/05/28
Project: EU project
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ENSURE: Electric energy and supply reliability
Österbacka, D. (Manager) & Hällström, J. (Participant)
1/06/24 → 31/05/27
Project: EU project
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e-TRENY: Metrology support for enhanced energy efficiency in DC transportation systems
Hällström, J. (Manager), Suomalainen, E.-P. (Participant) & Lehtonen, T. (Participant)
EURAMET e.V. - European Partnership on Metrology
1/06/23 → 31/05/26
Project: EU project
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Digital-IT: Metrology for digital substation instrumentation
Hällström, J. (Manager), Lehtonen, T. (Participant) & Nyholm, K. (Participant)
EURAMET e.V. - European Partnership on Metrology
1/09/22 → 31/08/25
Project: EU project
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WindEFCY: Traceable mechanical and electrical power measurement for efficiency determination of wind turbines
Kananen, T. (Manager), Hällström, J. (Participant) & Kilponen, S. (Participant)
1/09/20 → 31/08/23
Project: EU project
Research output
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Characterization and Application of Fiber-Optic Current Sensors for On-site Calibration
Zhao, W., Li, C., Hällström, J., Giordano, D., Signorino, D., Letizia, P. S., Suomalainen, E.-P. & Rietveld, G., 2026, In: IEEE Transactions on Instrumentation and Measurement. 75, 1003710.Research output: Contribution to journal › Article › Scientific › peer-review
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Development of an optimised Fibre-Optic Sensor for Laboratory and Substation noninvasive Calibration of Current Transformers
CROTTI, G., LETIZIA, P. S., ELG, A. P., LINDGREN, M., FRIGO, G., HÄLLSTRÖM, J., MAZZA, P., AYHAN, B. & ÇAYCI, H., Jun 2026, In: CIGRE Science and Engineering. 41Research output: Contribution to journal › Article › Scientific › peer-review
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Comparison of partial discharge (PD) calibrators from 0.1 pC to 10 nC
Kluss, J., Hällström, J., Havunen, J., Yan, W., Hlavacek, J., Crotti, G., Aguado, T., Vanconcellos, R., Liu, N. & Meisner, J., 2025, In: Metrologia. 62, 1A, 1 p., 01002.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Design and compatibility of different Stand Alone Merging Unit (SAMU) calibration testbeds
Herrera, A. M. F., Olivan, M. A., Melero, J. J., Espin-Delgado, A., Svensson, S., Kamp, P. V. D., Houtzager, E., Hällström, J. & Lehtonen, T. A., 2025, 2025 IEEE 15th International Workshop on Applied Measurements for Power Systems (AMPS). IEEE Institute of Electrical and Electronic Engineers, p. 1-6 6 p.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Establishment and Application of 1200-kV Lightning Impulse Voltage Reference Measuring System
Zhao, W., Hällström, J., Splinter, I., Elg, A. P. & Rietveld, G., 11 Nov 2025, In: IEEE Transactions on Instrumentation and Measurement. 74, 1507610.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access1 Link opens in a new tab Citation (Scopus)