scholarly journals The Impact of Shale Gas on the Cost and Feasibility of Meeting Climate Targets—A Global Energy System Model Analysis and an Exploration of Uncertainties

Energies ◽  
2017 ◽  
Vol 10 (2) ◽  
pp. 158 ◽  
Author(s):  
Sheridan Few ◽  
Ajay Gambhir ◽  
Tamaryn Napp ◽  
Adam Hawkes ◽  
Stephane Mangeon ◽  
...  
Keyword(s):  
Shale Gas ◽  
Energy System ◽  
Model Analysis ◽  
System Model ◽  
Global Energy ◽  
Energy System Model ◽  
Climate Targets ◽  
The Cost ◽  
The Impact ◽  
Global Energy System

scholarly journals Interaction between atmospheric model resolution and energy system model topology

2021 ◽  
Author(s):  
Matthias Zech ◽  
Oriol Raventós ◽  
Ontje Lünsdorf ◽  
Lueder von Bremen
Keyword(s):  
Renewable Energy ◽  
Energy System ◽  
Atmospheric Model ◽  
System Model ◽  
Weather Data ◽  
Model Resolution ◽  
Energy System Model ◽  
Grid Points ◽  
The Impact ◽  
Model Topology

<p>With the increasing penetration of renewable energy capacities in the European energy system, the electricity generators have shifted from centralized power plants to decentralized, weather-dependent wind turbines and photovoltaic systems. Energy system models now rely on skillful weather data to estimate renewable energy feedins on electricity bus levels. These feedins are usually calculated by bilinearly interpolating the closest atmospheric model grid points to the electricity network bus locations. This comes to the cost of averaging multiple atmospheric model grid points reducing overall atmospheric model variability. In addition, electricity grids are often modeled in clustered representations in terms of number of lines and buses. The number of buses is usually much smaller than the number of atmospheric model grid points and therefore some grid points and their characteristics may not be taken into account in highly clustered networks. So far, this interconnection between atmospheric model resolution and electricity grid topology has not been widely investigated.</p><p>This study approaches the question if and to what extent the atmospheric model resolution affects the energy system model results. The regional reanalysis COSMO-REA6 is used as a reference data and its resolution is artificially reduced. This allows to compare the loss of information (mainly variability) due to a lower grid point resolution. The weather data is then used within different energy system network topologies to determine the corresponding renewable energy feedins at bus levels. A subsequent optimal power flow model estimates the impact on energy system metrics as storage usage and economic dispatch costs to further understand the relationship between atmospheric model resolution and energy system model topology. This study provides useful insights to choose the appropriate resolution of the atmospheric model input given an energy system model. </p>

scholarly journals A Techno-Economic Analysis of a PV-Battery System in Greece

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1357 ◽  
Author(s):  
Ioannis Kosmadakis ◽  
Costas Elmasides ◽  
Dimitrios Eleftheriou ◽  
Konstantinos Tsagarakis
Keyword(s):  
Economic Cost ◽  
Economic Assessment ◽  
Energy System ◽  
Economic Feasibility ◽  
System Model ◽  
Energy Yield ◽  
Optimal Model ◽  
Battery System ◽  
Energy System Model ◽  
The Cost

A techno-economic assessment has been carried out to evaluate the economic feasibility of energy self-consumption from a combination of photovoltaics and lead-acid batteries (PV-BAT). The Total annual economic cost (TAEC) and the cost per unit of energy were first calculated, from PV-BAT data collected over a 12 month period and then from energy system model data for the same period. A comparison of the actual renewable energy yield to optimal model output revealed that energy was restrained partially due to limited storage resources. The cost per kilowatt-hour for the two examined scenarios ranged from 0.55 to 0.62 €/kWh and from 0.42 to 0.46 €/kWh, respectively, showing room for further cost reductions. Despite currently lower energy purchasing costs from electricity providers, these findings constitute a significant price indication of the kilowatt-hour produced by PV-BAT, showing the need for further investigation into battery sizing can be optimized and battery cost can be reduced.

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