Ancillary services in the Iberian Electricity market — Current situation and harmonization approaches

Abstract Combined Cycle Gas Turbines, CCGTs, are often considered as the bridging technology to a decarbonized energy system thanks to their high exploitation rate of the fuel energetic potential. At present time in most European countries, however, revenues from the electricity market on their own are insufficient to operate existing CCGTs profitably, also discouraging new investments and compromising the future of the technology. In addition to their high efficiency, CCGTs offer ancillary services in support of the operation of the grid such as spinning reserve and frequency control, thus any potential risk of plant decommissioning or reduced investments could translate into a risk for the well-functioning of the network. To ensure the reliability of the electricity system in a transition towards a higher share of renewables, the economic sustainability of CCGTs must be preserved, for which it becomes relevant to monetize properly the ancillary services provided. In this paper, an accurate statistical analysis was performed on the day-ahead, intra-day, ancillary service, and balancing markets for the whole Italian power-oriented CCGT fleet. The profitability of 45 real production units, spread among 6 market zones, was assessed on an hourly basis considering local temperature, specific plant layouts, and off-design performance. The assessment revealed that net income from the ancillary service market doubled, on average, the one from the day-ahead energy market. It was observed that to be competitive in the ancillary services market CCGTs are required to be more flexible in terms of ramp rates, minimum environmental loads, and partial load efficiencies. This paper explores how integrating a Heat Pump and a Thermal Energy Storage within a CCGT could allow improving its competitiveness in the ancillary services market, and thus its profitability, by means of implementing a model of optimal dispatch operating on the ancillary services market.

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COTS-Based Real Time System for Following Ancillary Services and Generation Schedule in a Deregulated Electricity Market

Proceedings of the IEEE International Symposium on Industrial Electronics, 2005. ISIE 2005. ◽

10.1109/isie.2005.1529125 ◽

2005 ◽

Cited By ~ 1

Author(s):

J. Daviaud ◽

T. Dang

Keyword(s):

Real Time ◽

Electricity Market ◽

Ancillary Services ◽

Time System ◽

Real Time System ◽

Deregulated Electricity Market

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Market Design for Multilateral Trade of Electricity in ASEAN: A Survey of the Key Components and Feasibility

Asian Economic Papers ◽

10.1162/asep_a_00763 ◽

2020 ◽

Vol 19 (1) ◽

pp. 43-60

Author(s):

Yanfei Li ◽

Tsani Fauziah Rakhmah ◽

Junichi Wada

Keyword(s):

Electricity Market ◽

Market Design ◽

Power Grid ◽

Current Situation ◽

Member States ◽

Multilateral Trade ◽

Energy Cooperation ◽

Cross Border ◽

Border Trade ◽

Asean Countries

The member states of ASEAN have together identified a need to develop the ASEAN Power Grid and enable the multilateral cross-border trade of electricity in a coordinated manner within ASEAN. This has been set out in the ASEAN Plan of Action for Energy Cooperation (APAEC) 2016–25. Moving forward from the current situation, this paper reviews the key components and feasibility of establishing an interconnected and competitive multilateral electricity market within the ASEAN countries. An indicative roadmap is developed based on an in-depth survey of experts to profile an appropriate market design for the multilateral trade of electricity in the ASEAN.

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