Scrutinizing the Intermittency of Renewable Energy in a Long-Term Planning Model via Combining Direct Integration and Soft-Linking Methods for Colombia’s Power System

The large-scale integration of variable renewable energy sources into the energy system presents techno–economic challenges. Long–term energy system optimization models fail to ade quately capture these challenges because of the low temporal resolution of these tools. This limitation has often been addressed either by direct improvements within...

A Single-Level Rule-Based Model Predictive Control Approach for Energy Management of Grid-Connected Microgrids

A single-level rule-based model predictive control (RBMPC) scheme is presented for optimizing the energy management of a grid-connected microgrid composed of local production units, renewable energy sources, local loads, and several types of energy storage systems (ESSs). The single-level controller uses two different models that yield different...

Modeling the hidden flexibility of clustered unit commitment

This letter proposes a clustered unit commitment (CUC) formulation to accurately model flexibility requirements such as ramping, reserves, and startup/shutdown constraints. The classic CUC intrinsically and hiddenly overestimates the individual unit's flexibility, thus being unable to replicate the result of the individual UC. This letter...

Opportunities for large-scale energy storage in geological formations in mainland Portugal

This article presents the methodology and results of the first screening conducted in Portugal to identify geological formations suitable for large-scale storage of energy from renewable sources. The screening focused on the identification of adequate porous media rocks, salt formations and igneous host rocks that could act as reservoirs for gas...

Validation of a robust neural real-time voltage estimator for active distribution grids on field data

The installation of measurements in distribution grids enables the development of data driven methods for the power system. However, these methods have to be validated in order to understand the limitations and capabilities for their use. This paper presents a systematic validation of a neural network approach for voltage estimation in active...

Risk assessment of aggregated flexibility usage for optimal multi-market trade

With the supply mix evolving to incorporate more and more uncontrollable renewable energy sources there is a need for more storage and demand response solutions. Aggregated demand response flexibility has been investigated in the past years as one of the potential solution this problem. This paper will investigate the potential impact on risks...

Quantifying flexibility for smart grid services

Renewable energy sources and other types of distributed generation are becoming ever more present in todays power supply mix. In addition, a change in electric load is being seen with the increase in electric heating and electric vehicles. These additions may create a number of challenges in the current electrical grid. At DSO level problems in...

Energieconcept Hogeschool Haarlem: een duurzaam voorbeeld doet goed volgen

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Energietechnologie in het spanningsveld tussen klimaatbeleid en liberalisering

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VernieuwEND<br />SETe concepten voor lokale duurzame energiesystemen: eindverslag

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Tradable green certificates: a new market-based incentive scheme for renewable energy: introduction and analysis

In the coming decades the trend of liberalising energy markets will haveto be combined with ambitious environmental goals within the European Union (EU). Currently prevailing incentive schemes for renewable energy might not be in line with liberalisation of international energy markets. A new policy scheme that has been developed recently is the...

The implications of tradable green certificates for the deployment of renewable electricity: mid-term report

The issue of green certificates has received much attention in the recentyear. In a system of green certificates, producers of renewable electricity receive a certificate for each pre-defined unit of electricity produced. Such a certificate represents the 'greenness', or in more general terms the 'societal value' of the production of electricity...

Verbreding MJA`s in de dienstensector: definities en potentiëlen

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