Reference data set for a Norwegian medium voltage power distribution system

Sperstad, Iver Bakken; Fosso, Olav Bjarte; Jakobsen, Sigurd Hofsmo; Eggen, Arnt Ove; Evenstuen, Julie Helen; Kjølle, Gerd Hovin

doi:10.36227/techrxiv.21258513.v1

“…The annual peak load demand in this base system is 5.23 MW. The full grid and load data set is available at [30] and described in detail in [19].…”

Section: A Reference Systemmentioning

confidence: 99%

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Rana¹,

Sperstad²,

Torsæter³

et al. 2022

Preprint

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Distribution grid companies and distribution system operators (DSOs) still mostly follow a traditional framework for grid planning. Such frameworks have so far served DSOs well in the economic assessment and cost-benefit analysis of passive measures, such as grid reinforcement. However, the development towards active distribution grids requires DSOs to also be able to assess an extended set of active measures. To this aim, this paper extends and implements a general planning framework for active distribution grids that builds upon the well-proven traditional framework. The methodology integrated in the framework includes: 1) decoupled models for i) operation with active measures and ii) optimal grid investment, and 2) methods for economic assessment considering active measures from both i) a DSO cost-benefit analysis perspective and ii) a willingness-to-pay perspective. In this paper, operational models are integrated for two examples of active measures, namely the use of fast-charging stations (FCS) and local energy communities (LEC). The methodology is demonstrated in a long-term grid planning case study for a realistic Norwegian medium voltage distribution system. For this case, grid planning with FCS as an active measure reduces the present value of grid investment costs by 70% compared with a passive grid planning strategy. The results also demonstrate how the methodology can be used in negotiating the price of active measures between the DSO and distribution system actors such as LEC and FCS operators.

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“…• The non-linear reinforcement planning problem is linearised by decoupling planning stage variables from operation stage variables, thereby decreasing the computational complexity of the proposed methods. The methodology's tractability was demonstrated using a reference grid model consisting of 124 buses that is representative of real Norwegian MV grids [19].…”

Section: Lec Operatormentioning

confidence: 99%

“…Fig.4: Reference system representative for a Norwegian radial, MV distribution systems (the CINELDI MV reference system)[19], including two scenarios for when and where new loads are added to the system.…”

mentioning

confidence: 99%

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Rana¹,

Sperstad²,

Torsæter³

et al. 2022

Preprint

0

View full text Add to dashboard Cite

Distribution grid companies and distribution system operators (DSOs) still mostly follow a traditional framework for grid planning. Such frameworks have so far served DSOs well in the economic assessment and cost-benefit analysis of passive measures, such as grid reinforcement. However, the development towards active distribution grids requires DSOs to also be able to assess an extended set of active measures. To this aim, this paper extends and implements a general planning framework for active distribution grids that builds upon the well-proven traditional framework. The methodology integrated in the framework includes: 1) decoupled models for i) operation with active measures and ii) optimal grid investment, and 2) methods for economic assessment considering active measures from both i) a DSO cost-benefit analysis perspective and ii) a willingness-to-pay perspective. In this paper, operational models are integrated for two examples of active measures, namely the use of fast-charging stations (FCS) and local energy communities (LEC). The methodology is demonstrated in a long-term grid planning case study for a realistic Norwegian medium voltage distribution system. For this case, grid planning with FCS as an active measure reduces the present value of grid investment costs by 70% compared with a passive grid planning strategy. The results also demonstrate how the methodology can be used in negotiating the price of active measures between the DSO and distribution system actors such as LEC and FCS operators.

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“…The data set also includes individual load demand time series for a year with hourly resolution for each distribution substation in the grid model. For the sake of brevity, we refer to the data article for the reference data set [17] as well as to [9] for further details about the case.…”

Section: A Deterministic Grid Development Plans Considering Lecsmentioning

confidence: 99%

Methodology for Evaluating Grid Development Strategies Considering Real Options and Risks

Sperstad¹,

Rana²,

Sandell³

2022

Preprint

1

0

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Traditional power grid planning is based on passive measures such as grid reinforcement and using present value calculations to compare grid development plans. However, this approach does not accurately represent the real options value of using active measures such as demand-side flexibility for post-poning grid reinforcement through a ”wait-and-see” approach to manage the long-term uncertainty in load growth. However, the value of using active measures may come at the price of reducing the security margins in grid operation. This leads to an increased risk of operational challenges during operation, and this risk must be weighed against the value of using active measures. This paper presents a methodology for quantifying both the value and risk (or price) of real options related to grid development strategies using active measures, providing grid planners with more comprehensive information about the advantages and disadvantages. The methodology is demonstrated using an illustrative and simple case for a medium voltage reference distribution system, where flexibility from local energy communities is considered as an example of an active measure. The case study illustrates how some risk-taking is required to realize the value from using active measures.

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Reference data set for a Norwegian medium voltage power distribution system

Cited by 3 publications

References 2 publications

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Economic Assessment of Integrating Fast-Charging Stations and Energy Communities in Grid Planning

Methodology for Evaluating Grid Development Strategies Considering Real Options and Risks

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