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Hydropower for energy storage and balancing renewables

Hydropower with reservoirs is the only form of large-scale renewable energy storage in wide commercial use today. Pumped storage hydropower plants (PSP) are designed to lift water to a reservoir at higher elevation when the electricity demand is low or when prices are low, and turbine water to produce electricity when the demand is high and/or prices are high. PSP are often designed with a relative high capacity to operate in turbine or pumping mode only for some hours each. They often use artificial reservoirs with limited capacity of storing water. Environmental impacts of hydropower and pumped storage plants are related to impacts of flooding land to create a reservoir, the barrier effect disturbing the connectivity in the river and impacts on the flow regime and related ecosystem downstream from the dam.

The Estfeed Project: Innovative data sharing ICT infrastructure for energy market participants

Estfeed project built a software platform capable to integrate many data sources and to provide appropriate services to convert these data into valuable information for energy flexibility management, energy efficiency, audit and benchmarking.

e-Highway 2050: Recommendations about potential solutions to address challenges in long-term grid planning

A new methodology for long-term planning over large transmission systems is proposed.  It aims at finding the optimal design of a large grid including its modular development plan over a long-time horizon. Advanced optimization and simulation methods have been investigated to tackle this complex problem which includes highly combinatorial aspects and stochastic behaviours of system components, while ensuring some control over the system.

An estimation of the computational resources needed for a real study over a system of the size of the whole pan-European network for the 2020 to 2050 period is given based on a case study performed for a large system representing a part of the European transmission system.

I3RES: ICT-based intelligent management of integrated RES for the smart grid optimal operation

The I3RES project was financed by the European Commission under the Seventh Framework Programme and more specifically the call ICT-2011.6.1 on Smart Energy Grids. As a result, the I3RES Management Tool was developed.

GREDOR: Management of distribution systems open to renewables

The GREDOR project addresses challenges in the management of distribution systems raised by the integration of renewable energy sources and new consumption practices, from investment decisions to real-time control. It also aims at proposing and analyzing interaction models for organizing exchanges of flexibility between stakeholders. GREDOR is funded by the Public Service of Wallonia, coordinated by the University of Liège and encompasses 7 industrial and academic partners.

The e-Highway 2050 project: Modular Development Plan of the Pan-European Transmission System 2050

Following the “Study Roadmap towards Modular Development Plan on the pan-European Electricity Highways System 2050” performed by ENTSO-E members in response to the Energy Infrastructure Package blueprint as published by the EC, the 28 partners consortium of the e-Highway2050 project proposes under the coordination of RTE (France) to develop and implement, in forty  months, a top-down long-term planning approach.

ADVANCED project

The ADVANCED project (Active Demand Value ANd Consumers Experiences Discovery) is a research project co-funded by the European Community’s Seventh Framework Programme (FP7/2007-2013). It aims at developing actionable frameworks enabling residential, commercial and industrial consumers to participate in AD (active demand) thus contributing to AD mass deployment in Europe.

SiNGULAR: Smart and Sustainable Insular Electricity Grids Under Large-Scale Renewable Integration

SiNGULAR investigates the effects of large-scale integration of renewables and demand-side management on the planning and operation of insular electricity grids, proposing efficient measures, solutions and tools towards the development of a sustainable and smart grid.

e-Highway 2050 : The importance of spatial correlations in Monte Carlo adequacy simulations

A new method, which aims at reproducing the stochastic characteristics of the time series observed in historical data (seasonality, temporal correlation, marginal distribution and spatial correlations) for consumption, intermittent renewable generation and hydro inflows, is proposed. It has been implemented with a Monte Carlo adequacy simulator. The sensitivity to spatial correlations of some reliability indicators is analysed for a French test case at the 2030 horizon. It is shown that the reliability of the power system can be significantly overestimated and the assessment of the inter-zonal exchanges can be biased if spatial correlations are neglected.

e-Highway 2050 : Enhanced Pan-European Transmission Planning Methodology

A new methodology for long-term planning  over large transmission systems is proposed.  It aims at finding the optimal design of a large grid including its modular development plan over a long-time horizon. Advanced optimization and simulation methods have been investigated to tackle this complex problem which includes highly combinatorial aspects and stochastic behaviours of system components, while ensuring some control over the system.

An estimation of the computationl resources needed for a real study over a system of the size of the whole pan-European network for the 2020 to 2050 period is given based on a case study for the French and Spanish systems. 

e-Highway 2050 : Methodology to develop an optimal zonal grid expansion plan considering several scenarios: focus on snapshot selection

Transmission Expansion Planning (TEP) is usually performed on a few operating situations or snapshots. Snapshots of the operating situations of the power system have to be selected carefully to get a representative set over the year. The proposed clustering method is based on the K-means algorithm that uses features drawn from information about system operation including price differences and non-controllable injections, where the retained clusters represent the set of selected snapshots. It is shown that replacing local features by statistical indicators over the system reduces the clustering complexity and therefore the amount of data to be dealt with. The obtained results over a small case study show that statistical price differences can be used as a good clustering feature for snapshot selection and that the error introduced in the investment solution compared to the solution without clustering is very small. 

 

e-Highway 2050: Performance and cost database of a portfolio of power system technologies expected to impact grid architecture studies at 2050

A technology assessment of available and commercially mature power system technologies at 2050 is made. It is presented in the form of a techno-economic database displaying data (i.e. technical performances, costs, environmental impact, etc.) that characterizes the different technologies for the next four decades, i.e. from today to 2050.

The technology assessment reflects the common views of the e-Highway2050 experts regarding the most likely evolutions of the selected technologies mainly in terms of technical performances, maturity, and costs and provides the project partners with data to feed the different simulation tasks (e.g. scenario quantification, grid simulations, cost benefit analyses).

e-Highway 2050: Management of uncertainties and data contextualization in the framework of the technology assessment of power system technologies expected to impact grid architecture studies at 2050

In the general context of the technology assessment of power system technologies expected to impact grid architecture studies at 2050, a techno-economic database displaying data (i.e. technical performances, costs, environmental impact, etc.) that characterizes the different technologies for the next four decades, i.e. from today to 2050 has been produced.

Uncertainty due to the remoteness of time horizon and to the diversity of configurations was managed by providing ranges of values for some critical variables needed for the system simulations. 

A simple and direct approach was used to project likely values from these uncertainty intervals according to each of the five e-Highway2050 scenarios. This process is called contextualization of data per scenario.

e-Highway 2050: A methodology to define power technologies expected to impact grid architecture studies at 2050

A methodology to identify power system technologies likely to impact grid planning studies in a pan-European context over a period running until the 2050 time horizon is proposed.

In a context of energy scenario thinking, the technology portfolio is defined based on selection criteria specific to each scenario and defining thus a criticality index. The approach is implemented by a pool of experts in technology roadmaping. 

e-Highway 2050: a methodology for building future costs of transmission technologies in the framework of the technology assessment of power system technologies expected to impact grid architecture studies at 2050

A methodology to build cost trajectories of transmission technologies over a period running until the 2050 time horizon is proposed. Technological scope includes HVAC, HVDC interconnections, lines and cables, converters and FACTS. It relies upon a modelling of time evolutions through (i) a systematic breakdown of costs into five distinct components (equipment, installation, civil work, project management, authorizations and right of ways), (ii) then proxies of time evolutions of each component is estimated through tentative forecasts of a series of indices such as commodity prices for energy and metals, labour and engineering costs as well as dropping rates capturing an increasing maturity of the technology.

e-Highway 2050: Challenging energy scenarios for the pan European transmission system by 2050

A novel scenario building approach to generate different long-term energy scenarios for European electricity generation, exchanges and consumption has been developed by the e-Highway2050 project.

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(1) aggregator (1) Ancillary services provided by DER (1) back-casting approach (2) balancing (1) Batteries (1) Bi-directional communication systems (1) bird fauna (3) boundary conditions (1) CAPEX (1) CBA (1) communication protocol (1) compressed air energy storage (CAES) (1) congestion in MV networks (1) Consumption data standardisation (1) controllable appliances (2) cross-border flows (1) Decarbonisation scenario (2) demand quantification (1) Demand response signal (1) distribution grid stability (2) Dynamic Line rating (DLR) (1) electricity magnetic field (EMF) (2) energy management system (EMS) (1) energy savings (3) FACTS (Flexible AC Transmission System) (2) Gas-insulated transmission line (GIL) (1) generation quantification (1) grid automation (2) grid stability (2) High temperature conductor (HTC) (1) human health (2) HVAC cable (3) HVDC cable (1) HVDC converter (3) hybrid AC/DC line (1) Imbalance and settlement (2) integration of HVDC lines (1) interoperability between standard protocols (2) investment strategies (1) large data mining process (2) large-scale PV power (1) load aggregation (1) load modelling at distribution level (13) long-term planning (1) LV network monitoring and control (1) medium-term planning (1) meshed HVDC network (2) MV network monitoring and control (1) N-1 criterion (1) network congestion (1) nodal (1) noise (1) offshore HVDC grid (4) offshore wind (2) OPEX (2) Optimal Power Flow (OPF) (4) Overhead transmission line (OHL) (3) Phase-shifting Transformer (PST) (1) Phasor measurement unit (PMU) (1) point to point DC link (4) power flow simulation (1) preventive action (1) probabilistic reliability criteria (1) public awareness (1) public consultation (1) pumped hydro storage (PHS) (7) reinforcement options (2) RES forecast (1) reversion of unidirectional flows (2) smart meter (2) stakeholder consulations (1) state estimation (3) Storage (1) Supervisory Control And Data Acquisition (SCADA) (1) top-down approach (1) visual impact (1) zonal
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