Browsing by Author "van der Welle, Adriaan"
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- Design of ancillary service markets and products: Challenges and recommendations for EU renewable power systems: Deliverable D3.3Publication . van der Welle, Adriaan; Morales-España, Germán; Sijm, Jos; Serna, Ricardo Hernandez; Kochems, Johannes; Couto, António; Algarvio, Hugo; Kiviluoma, Juha; Vries, Laurens de; Estanqueiro, AnaABSTRACT: The overall objective of the current study is to analyse the implications of the transition towards a renewable, climate-neutral power system in the EU for the demand and supply of ancillary services (AS) of this system in general and for the market design and related EU regulation of these services in particular. The study focuses predominantly on electricity balancing services (‘frequency control’). However, other ancillary services – not ably reactive power services (‘voltage control’) and system restoration services (‘black start’) – are, to some extent, considered as well. More specifically, the study analyses in particular (i) the current situation (‘base case’) of ancillary (electricity balancing) services in the EU, (ii) the future situation (‘towards a 100% renewable EU power system’) of these services, and (iii) the major challenges and recommendations for the main ancillary services markets in the EU in order to improve the performance of these markets in the coming years, i.e. up to 2030 and beyond.
- Strategies for Continuous Balancing in Future Power Systems with High Wind and Solar SharesPublication . Nordström, Henrik; Söder, Lennart; Flynn, Damian; Matevosyan, Julia; Kiviluoma, Juha; Holttinen, Hannele; Vrana, Til Kristian; van der Welle, Adriaan; Morales-España, Germán; Pudjianto, Danny; Strbac, Goran; Dobschinski, Jan; Estanqueiro, Ana; Algarvio, Hugo; Martinez, Sergio Martin; Lázaro, Emilio Gómez; Hodge, Bri-MathiasABSTRACT: The use of wind power has grown strongly in recent years and is expected to continue to increase in the coming decades. Solar power is also expected to increase significantly. In a power system, a continuous balance is maintained between total production and demand. This balancing is currently mainly managed with conventional power plants, but with larger amounts of wind and solar power, other sources will also be needed. Interesting possibilities include continuous control of wind and solar power, battery storage, electric vehicles, hydrogen production, and other demand resources with flexibility potential. The aim of this article is to describe and compare the different challenges and future possibilities in six systems concerning how to keep a continuous balance in the future with significantly larger amounts of variable renewable power production. A realistic understanding of how these systems plan to handle continuous balancing is central to effectively develop a carbon-dioxide-free electricity system of the future. The systems included in the overview are the Nordic synchronous area, the island of Ireland, the Iberian Peninsula, Texas (ERCOT), the central European system, and Great Britain.