333 research outputs found
Balancing and Intraday Market Design: Options for Wind Integration
EU Member States increase deployment of intermittent renewable energy sources to deliver the 20% renewable target formulated in the European Renewables Directive of 2008. To incorporate these intermittent sources, a power market needs to be flexible enough to accommodate short-term forecasts and quick turn transactions. This flexibility is particularly valuable with respect to wind energy, where wind forecast uncertainty decreases significantly in the final 24 hours before actual generation. Therefore, current designs of intraday and balancing markets need to be altered to make full use of the flexibility of the transmission system and the different generation technologies to effectively respond to increased uncertainty. This paper explores the current power market designs in European countries and North America and assesses these designs against criteria that evaluate whether they are able to adequately handle wind intermittency.Power market design, integrating renewables, wind energy, balancing, intraday
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Modelling Wind in the Electricity Sector
We represent hourly, regional an wind data and transmission constraints in an investment planning model calibrated to the UK and test sensitivities of least cost expansions to fuel and technology prices. Thus we can calculate the value of transmission expansions to the system. We represent limited public acceptance of wind and regional network constraints by maximum built rates per region and year. Thus we calculate the marginal value of improved planning and grid connection regimes. It is likely that some constraints will remain. Market designs that do not allow for regional differentiation to reflect transmission and planning constraints can increase overall costs to consumers
Implications of intermittency and transmission constraints for renewables deployment
We represent hourly, regional wind data and transmission constraints in an investment planning model calibrated to the UK and test sensitivities of least cost expansions to fuel and technology prices. Thus we can calculate the value of transmission expansions to the system. We represent limited public acceptance of wind and regional network constraints by maximum built rates per region and year. Thus we calculate the marginal value of improved planning and grid connection regimes. It is likely that some constraints will remain. Market designs that do not allow for regional differentiation to reflect transmission and planning constraints can increase overall costs to consumers.Investment planning model, wind power, constraint land, Network constraints.
Making the most of the G8+5 Climate Change Process: Accelerating Structural Change and Technology Diffusion on a Global Scale. CEPS Task Force Reports, 5 June 2008
Under the chairmanship of Gunnar Still, Senior Vice President and Head of Environment Division at ThyssenKrupp, CEPS organized a Task Force to explore possible initiatives within the context of the G8+5 dialogue on tackling climate change. This report identifies a number of concrete measures that could reduce greenhouse gas (GHG) emissions, while at the same time stimulating structural change and technology development and diffusion. It calls for supporting action-based approaches, which are essential to achieve the necessary reductions in GHG emissions, inform the post-2012 negotiations and address the most urgent issues such as surging energy demand and the need for clean energy technologies in emerging economies. An action-based approach can be regarded as a way of integrating targets and timetables, as they are agreed, with consistent and comparable policies and measures. With a view to a long-term climate strategy, this report attempts to present a portfolio of actions that can be implemented and accelerated on a global scale – especially in the G8+5 countries and the EU, and could become a basis on which developed and developing countries can cooperate
Consensus-based approach to peer-to-peer electricity markets with product differentiation
With the sustained deployment of distributed generation capacities and the
more proactive role of consumers, power systems and their operation are
drifting away from a conventional top-down hierarchical structure. Electricity
market structures, however, have not yet embraced that evolution. Respecting
the high-dimensional, distributed and dynamic nature of modern power systems
would translate to designing peer-to-peer markets or, at least, to using such
an underlying decentralized structure to enable a bottom-up approach to future
electricity markets. A peer-to-peer market structure based on a Multi-Bilateral
Economic Dispatch (MBED) formulation is introduced, allowing for
multi-bilateral trading with product differentiation, for instance based on
consumer preferences. A Relaxed Consensus+Innovation (RCI) approach is
described to solve the MBED in fully decentralized manner. A set of realistic
case studies and their analysis allow us showing that such peer-to-peer market
structures can effectively yield market outcomes that are different from
centralized market structures and optimal in terms of respecting consumers
preferences while maximizing social welfare. Additionally, the RCI solving
approach allows for a fully decentralized market clearing which converges with
a negligible optimality gap, with a limited amount of information being shared.Comment: Accepted for publication in IEEE Transactions on Power System
Low-Carbon Technologies in the Post-Bali Period: Accelerating their Development and Deployment. CEPS ECP Report No. 4, 4 December 2007
This report analyses the very broad issue of technology development, demonstration and diffusion with a view to identifying the key elements of a complementary global technology track in the post-2012 framework. It identifies a number of immediate and concrete steps that can be taken to provide content and a structure for such a track. The report features three sections dealing with innovation and technology, investment in developing countries and investment and finance, followed by an analysis of the various initiatives being taken on technology both within and outside the United Nations Framework Convention on Climate Change (UNFCCC). A final section presents ideas for the way forward followed by brief concluding remarks
Blockchain electricity trading using tokenised power delivery contracts. ESRI Working Paper No. 649 December 2019
This paper proposes a new mechanism for forward selling renewable electricity generation. In this transactive
framework, a wind or solar farm may directly sell to consumers a claim on their future power output in the form of nonfungible
blockchain tokens. Using the flexibility of smart contract code, which executes irrevocably on a blockchain, the realised
generation levels will offset the token holders’ electricity consumption in near real-time. To elucidate the flexibility offered by
such smart contracts, two ways of structuring these power delivery instruments are considered: firstly, an exotic tranched
system, where more senior tokens holders enjoy priority claims on power, as compared against a simpler pro-rata scheme,
where the realised output of a generator is equally apportioned between token holders. A notional market simulation is
provided to explore whether, for instance, consumers could exploit the flatter power delivery profiles of more senior tranches to
better schedule their responsive demands
Evaluating the Economic Impact of Tertiary Reserve Exchanges Between Iberian TSO: Essay on European Energy Market Integration
Para esse efeito, os dados fornecidos pela REN (Rede ElĂ©trica Nacional, significa, National Electric Grid) foram analisados de maneira a identificar perĂodos onde ocorreram trocas de reserva entre TSOs e comparar os custos e lucros obtidos com os custos e lucros resultantes de suprir a mesma quantidade de energia terciária (a subir ou a descer) utilizando apenas as ofertas dos produtores Portugueses.Em adição Ă rentabilidade do BALIT, este trabalho expande o estudo de trocas de reserva transfronteiriças, analisando o lucro hipotĂ©tico resultante de um sistema mais amplo de trocas de reserva terciária na Europa. Este lucro foi obtido analisando as ofertas transfronteiriças de energia terciária submetidas pelos variados TSOs Europeus (NGT, RTE, SwissGrid, Terna...) nesses mesmos perĂodos (2015 a 2017) e identificando perĂodos nos quais teria sido possĂvel Ă REN lucrar ainda mais da importação ou exportação com outros TSOs que nĂŁo a REE.This thesis's purpose is to analyze the profitability of the implementation of cross-border tertiary reserve exchange between Iberian Transmission System Operators - BALIT Project - from a Portuguese point of view. For that purpose, the data provided by REN (Rede ElĂ©trica Nacional, meaning, National Electric Grid) was analyzed in order to track periods where reserve exchanges occurred between TSOs and compare the costs and profits obtained with the costs and profits of supplying the same tertiary energy quantity (upward or downward) using only the Portuguese energy suppliers' offers. In addition to the BALIT's profitability, this work expands the study of cross border balancing further by analyzing the hypothetic profit resulting from a broader tertiary reserve exchange system in Europe.This profit was obtained, analyzing the cross border tertiary energy exchange offers submitted by various European TSOs (NGT, RTE, SwissGrid, Terna...) in those same periods (2015 to 2017) and tracking periods where REN would have been able to further profit from Importing or Exporting to other TSOs besides REE
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