Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings

Juho Ylipaino; Aki Kortetmäki; Kari Kallioharju; Juha Koskela; Pertti Järventausta

doi:10.1109/EEM64765.2025.11050109

Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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Abstract

This study evaluates four energy allocation methods for collective self-consumption (CSC) in Finnish multi-dwelling buildings (MDB) using photovoltaic (PV) systems. The methods are compared to the ideal Neighboring Credit (NC) system, which prioritizes surplus energy distribution to apartments with unmet needs. Two PV dimensioning scenarios-optimal and practicalare analyzed using consumption and simulated production data from two case properties. Under optimal PV dimensioning, the NC system achieved a self-consumption ratio (SCR) of 86.9 88.3 %, while fixed allocation methods resulted in reductions of 617 percentage points. Economically, the decrease in total electricity cost savings compared to the ideal NC system ranged from 2.3 to 9.1 € kWp. Under practical PV dimensioning, the NC system achieved a near 100 % SCR, reflecting efficient energy utilization. The results indicate that allocation methods significantly influence SCR and financial outcomes in the utilization of PV systems in MDBs.

Original language	English
Title of host publication	2025 21st International Conference on the European Energy Market, EEM 2025
Publisher	IEEE
Number of pages	6
ISBN (Electronic)	979-8-3315-1278-1
ISBN (Print)	979-8-3315-1279-8
DOIs	https://doi.org/10.1109/EEM64765.2025.11050109
Publication status	Published - 2025
Publication type	A4 Article in conference proceedings
Event	International Conference on the European Energy Market - Lisbon, Portugal Duration: 27 May 2025 → 29 May 2025

Publication series

Name	International Conference on the European Energy Market
ISSN (Print)	2165-4077
ISSN (Electronic)	2165-4093

Conference

Conference	International Conference on the European Energy Market
Country/Territory	Portugal
City	Lisbon
Period	27/05/25 → 29/05/25

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Collective self-consumption
economic feasibility
multi-dwelling buildings
photovoltaic systems
sharing coefficient

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

Marketing
Energy Engineering and Power Technology
Fuel Technology

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10.1109/EEM64765.2025.11050109

Evaluating_Allocation_CSC
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Accepted author manuscript, 194 KBLicence: Unspecified

https://urn.fi/URN:NBN:fi:tuni-202509199393Licence: Unspecified

Cite this

Ylipaino, J., Kortetmäki, A., Kallioharju, K., Koskela, J., & Järventausta, P. (2025). Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings. In 2025 21st International Conference on the European Energy Market, EEM 2025 (International Conference on the European Energy Market). IEEE. https://doi.org/10.1109/EEM64765.2025.11050109

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title = "Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings",

abstract = "This study evaluates four energy allocation methods for collective self-consumption (CSC) in Finnish multi-dwelling buildings (MDB) using photovoltaic (PV) systems. The methods are compared to the ideal Neighboring Credit (NC) system, which prioritizes surplus energy distribution to apartments with unmet needs. Two PV dimensioning scenarios-optimal and practicalare analyzed using consumption and simulated production data from two case properties. Under optimal PV dimensioning, the NC system achieved a self-consumption ratio (SCR) of 86.9 88.3 \%, while fixed allocation methods resulted in reductions of 617 percentage points. Economically, the decrease in total electricity cost savings compared to the ideal NC system ranged from 2.3 to 9.1 € kWp. Under practical PV dimensioning, the NC system achieved a near 100 \% SCR, reflecting efficient energy utilization. The results indicate that allocation methods significantly influence SCR and financial outcomes in the utilization of PV systems in MDBs.",

keywords = "Collective self-consumption, economic feasibility, multi-dwelling buildings, photovoltaic systems, sharing coefficient",

author = "Juho Ylipaino and Aki Kortetm{\"a}ki and Kari Kallioharju and Juha Koskela and Pertti J{\"a}rventausta",

note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; International Conference on the European Energy Market ; Conference date: 27-05-2025 Through 29-05-2025",

year = "2025",

doi = "10.1109/EEM64765.2025.11050109",

language = "English",

isbn = "979-8-3315-1279-8",

series = "International Conference on the European Energy Market",

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booktitle = "2025 21st International Conference on the European Energy Market, EEM 2025",

address = "United States",

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Ylipaino, J , Kortetmäki, A , Kallioharju, K , Koskela, J & Järventausta, P 2025, Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings. in 2025 21st International Conference on the European Energy Market, EEM 2025. International Conference on the European Energy Market, IEEE, International Conference on the European Energy Market, Lisbon, Portugal, 27/05/25. https://doi.org/10.1109/EEM64765.2025.11050109

Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings. / Ylipaino, Juho ; Kortetmäki, Aki ; Kallioharju, Kari et al.
2025 21st International Conference on the European Energy Market, EEM 2025. IEEE, 2025. (International Conference on the European Energy Market).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings

AU - Ylipaino, Juho

AU - Kortetmäki, Aki

AU - Kallioharju, Kari

AU - Koskela, Juha

AU - Järventausta, Pertti

PY - 2025

Y1 - 2025

N2 - This study evaluates four energy allocation methods for collective self-consumption (CSC) in Finnish multi-dwelling buildings (MDB) using photovoltaic (PV) systems. The methods are compared to the ideal Neighboring Credit (NC) system, which prioritizes surplus energy distribution to apartments with unmet needs. Two PV dimensioning scenarios-optimal and practicalare analyzed using consumption and simulated production data from two case properties. Under optimal PV dimensioning, the NC system achieved a self-consumption ratio (SCR) of 86.9 88.3 %, while fixed allocation methods resulted in reductions of 617 percentage points. Economically, the decrease in total electricity cost savings compared to the ideal NC system ranged from 2.3 to 9.1 € kWp. Under practical PV dimensioning, the NC system achieved a near 100 % SCR, reflecting efficient energy utilization. The results indicate that allocation methods significantly influence SCR and financial outcomes in the utilization of PV systems in MDBs.

AB - This study evaluates four energy allocation methods for collective self-consumption (CSC) in Finnish multi-dwelling buildings (MDB) using photovoltaic (PV) systems. The methods are compared to the ideal Neighboring Credit (NC) system, which prioritizes surplus energy distribution to apartments with unmet needs. Two PV dimensioning scenarios-optimal and practicalare analyzed using consumption and simulated production data from two case properties. Under optimal PV dimensioning, the NC system achieved a self-consumption ratio (SCR) of 86.9 88.3 %, while fixed allocation methods resulted in reductions of 617 percentage points. Economically, the decrease in total electricity cost savings compared to the ideal NC system ranged from 2.3 to 9.1 € kWp. Under practical PV dimensioning, the NC system achieved a near 100 % SCR, reflecting efficient energy utilization. The results indicate that allocation methods significantly influence SCR and financial outcomes in the utilization of PV systems in MDBs.

KW - Collective self-consumption

KW - economic feasibility

KW - multi-dwelling buildings

KW - photovoltaic systems

KW - sharing coefficient

U2 - 10.1109/EEM64765.2025.11050109

DO - 10.1109/EEM64765.2025.11050109

M3 - Conference contribution

AN - SCOPUS:105011051167

SN - 979-8-3315-1279-8

T3 - International Conference on the European Energy Market

BT - 2025 21st International Conference on the European Energy Market, EEM 2025

PB - IEEE

T2 - International Conference on the European Energy Market

Y2 - 27 May 2025 through 29 May 2025

ER -

Evaluating Allocation Methods for Collective Selfconsumption in Nordic Multi-Dwelling Buildings

Abstract

Publication series

Conference

UN SDGs

Keywords

Publication forum classification

ASJC Scopus subject areas

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