Flexibility service market for active congestion management of distribution networks using flexible energy resources of microgrids

Amicarelli, Elvira; Tran, Quoc Tuan; Bacha, Seddik

doi:10.1109/isgteurope.2017.8260198

Cited by 31 publications

(24 citation statements)

References 8 publications

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“…Finally, numerous works introduce LFMs with short lead times. The authors of [40] propose a LFM to efficiently schedule flexibility for congestion management day ahead. Similarly, in [33] the DSO runs a market right after the day-ahead market clearing, in order to mitigate local congestions.…”

Section: Literature Review Of Local Flexibility Marketsmentioning

confidence: 99%

EcoGrid 2.0: A large-scale field trial of a local flexibility market

et al. 2020

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The number of distributed energy resources installed in distribution networks is steadily increasing. Their flexibility can be leveraged by aggregators and used in the wholesale markets. However, the utilization of this flexibility cannot neglect the operating conditions of distribution networks, and thus some form of coordination between distribution and transmission system operators must exist. The idea of operating local flexibility markets has been proposed to address these issues, but experience from real-life demonstrations is still missing. The Danish project EcoGrid 2.0 has designed, implemented and tested a local flexibility market with 800 participating customers, which runs in parallel with the wholesale markets. First, this paper presents a method to identify and quantify the value of possible flexibility services that are beneficial to the distribution system operator. Next, it provides insight from the operation of a real local flexibility market, with a large number of controllable loads. Results show that aggregators are able to reliably shape the load of residential heating units to deliver flexibility services, despite the presence of large uncertainties. Services can act as an insurance policy against rare but consequential network overloadings and outages. In these rare cases flexibility services can increase social welfare significantly. However, such services should be carefully selected to avoid adverse effects. Finally, we provide with guidelines and some general remarks on the nature and the desirable characteristics of those markets and services.

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Section: Literature Review Of Local Flexibility Marketsmentioning

confidence: 99%

EcoGrid 2.0: A large-scale field trial of a local flexibility market

et al. 2020

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“…The microgrids can operate more efficiently by interacting with the utility grid, gaining profit from selling the energy generated locally and helping the utility grid when technical problems are occurring. A DA market-based congestion management is proposed in [59,60] for the trading of flexibility from microgrids, where the cost of the service is compared with the grid reinforcement. Lastly, using an agent-based approach, the flexibility market mechanism is compared with other congestion management measures in [60] showing promising results in the distribution grid with highly renewable penetration.…”

Section: Dso Market Examplesmentioning

confidence: 99%

Local Markets for Flexibility Trading: Key Stages and Enablers

et al. 2018

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The European energy transition is leading to a transformed electricity system, where Distributed Energy Resources (DERs) will play a substantial role. Renewable Energy Sources (RES) will challenge the key operational obligation of real-time balancing and the need for flexibility will consequently increase. The introduction of a local flexibility market (LFM) would allow the trading of flexibility supplied by both producing and consuming units at the distribution level, providing market access to DERs, a support tool for Distribution System Operators (DSOs) and a value stream for energy suppliers. Aggregators and DSOs for different reasons can enhance the valuation of flexible DERs. Several research papers have assumed aggregators fully interacting with the electricity markets and DSOs contracting services with power system actors. These interactions are still not allowed in many European countries. This article aims to analyze the European regulation to identify the most important enablers and pave the way towards the full exploitation of DER flexibility, culminating in the establishment of an LFM. Therefore, three main stages, emerging from the progressive withdrawal of the current regulatory and market barriers, are identified: (1) enabling the aggregator’s trading, (2) evolution of the DSO’s role, and (3) key-design challenges of an LFM.

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“…Negative prices mean that the HEMS pays money to be called up for flexibility. Similar to (7), (8) calculates the number of offered flexibility time steps off,Flex,tSteps by dividing the offered energy by the power at time step and the number of time steps per Fig. 2 Functional overview of the HEMS hour tSteps/hour .…”

Section: ) Price Of the Flexibilitymentioning

confidence: 99%

“…Concepts like 'redispatch' on the supply side, as well as demand-side-management in energy intensive industries are grid ancillary services applied by transmission system operators (TSO) and distribution system operators (DSO) today [2,3,4]. However, in addition to already available energy markets and regulatory mechanisms, the idea of a separate, flexibility platform or market arises and is proposed more frequently in academic and industrial research [5,6,7,8,9,10]. Proposed platforms are meant to be accessible, not only by large industrial parties, but also by small DER, such as residential heat pumps (HP), combined-heat-and-power units (CHP), electric vehicles (EV) as well as photovoltaic (PV) and battery storage units.…”

Section: Introductionmentioning

confidence: 99%

Prosumer Integration in Flexibility Markets: A Bid Development and Pricing Model

Zadé

Incedag

El-Baz

et al. 2018

2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2)

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The impact of renewable energies on the power grid is continuously increasing. Besides the emission-free power generation, the renewable energies often are the cause for congested grids, component failure and costly interventions by the distribution system operators (DSO) and transmission system operators (TSO) in order to maintain grid stability. The scientific community discusses in recent years the usability of distributed energy resources (DER) as flexible devices. However, no approach can be found that actually quantifies the potential flexibility and sets a price to it. The model presented in this paper optimizes the charging operation of an electric vehicle (EV) according to a price signal with a state of the art exhaustive search algorithm. Furthermore, this model offers all possible deviations from the optimal operation as flexibility to a corresponding market platform and sets a price to each offer, which is dependent on the future price level of the energy. With this model, it is possible to offer positive and negative prices for flexibility. The proposed model shows that an exhaustive enumeration algorithm is feasible to calculate flexibility offers, prices and applicable on currently discussed platform models. The example of an EV charging schedule is successfully modelled and described in this paper.

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Flexibility service market for active congestion management of distribution networks using flexible energy resources of microgrids

Cited by 31 publications

References 8 publications

EcoGrid 2.0: A large-scale field trial of a local flexibility market

EcoGrid 2.0: A large-scale field trial of a local flexibility market

Local Markets for Flexibility Trading: Key Stages and Enablers

Prosumer Integration in Flexibility Markets: A Bid Development and Pricing Model

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