Large scale integration of renewable energy sources (RES) in the future Colombian energy system

Pupo-Roncallo, Oscar; Campillo, Javier; Ingham, D.B.; Hughes, Kevin J.; Pourkashanian, Mohamed

doi:10.1016/j.energy.2019.07.135

Cited by 73 publications

(29 citation statements)

References 37 publications

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“…The indicator for determining the maximum penetration share is the change in thermal electricity production. The technical assumption of maximum renewable electricity has been conducted in many studies [ 48 , 49 ]. The difference between this study and previous studies is the indicator.…”

Section: Discussionmentioning

confidence: 99%

Flexibility enhancement measures under the COVID-19 pandemic – A preliminary comparative analysis in Denmark, the Netherlands, and Sichuan of China

Luo

et al. 2022

Energy

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The COVID-19 pandemic affects all the aspects of modern society worldwide, especially in the power sector. Measures of flexibility enhancement are regarded as solutions to guarantee reliable and flexible electricity supply in such an emergency. This study aims at investigating the impact of flexibility enhancement measures (electricity storage and flexible demand) in different situations of the preliminary COVID-19 pandemic. Case studies in different regions (Denmark, the Netherlands, and the Sichuan province of China) are conducted and assessed using the hourly simulation tool EnergyPLAN. These regions own different electricity supply mix and level of renewable electricity. It is found that the flexible demand measure within one day or one week can hardly eliminate the electricity imbalance caused by either the pandemic or the increasing renewable electricity. The monthly flexible demand is effective for balancing, but its potential in these regions is not enough. However, electricity storage measure enhances the electricity balance even during the most extreme situation of the pandemic. From the economic perspective, electricity storage measure leads to an increase of up to 15% in total system costs, while flexible demand measure has a negligible effect on costs. This study serves as the first step to understand the performance of flexibility enhancement measures in the power sector under the shock of a pandemic.

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Section: Discussionmentioning

confidence: 99%

Flexibility enhancement measures under the COVID-19 pandemic – A preliminary comparative analysis in Denmark, the Netherlands, and Sichuan of China

Luo

et al. 2022

Energy

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“…These limitations have been partially addressed by using dedicated power system models of high temporal and/or spatial resolution, such as EnergyPLAN [29] and IRENA FlexTool [30]. These studies evaluated the operational flexibility of the power system by 2030 subject to the high penetration of VRES and in the case of an extreme El Niño drought event.…”

Section: Case Studymentioning

confidence: 99%

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

et al. 2022

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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 adequately capture these challenges because of the low temporal resolution of these tools. This limitation has often been addressed either by direct improvements within the long–term models or by coupling them to higher resolution power system models. In this study, a combined approach is proposed to capitalize on the advantages and overcome the disadvantages of both methods. First, the temporal resolution of an energy model was enhanced by approximating the joint probability of the electricity load and the supply of intermittent sources. Second, the projected electricity mix was simulated by a power model at an hourly resolution. This framework was used to analyze mid–century deep decarbonization trajectories for Colombia, subject to future uncertainties of hydroclimatic variability and the development of the bioeconomy. The direct integration method is found to consistently reduce the overestimation of the feasible penetration of VRES. However, its impact is marginal because of its inability to assess the short–term operation of the power system in detail. When combined with the soft–linking method, the reliable operation of the power system is shown to incur an additional overhead of 12–17% investment in flexible generation capacity, 2–5% of the annual energy system cost, and a 15–27% shortfall in achieving the aspired GHG mitigation target. The results obtained by combining both methods are found to be closer to the global optimum solution than using either of these methods individually.

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“…Some natural resources are also located in the departments of Valle del Cauca and Cauca, playing an important role for the country. However, Colombia also has other abundant renewable energy resources, such as solar and wind, which remain largely unexploited [49]. The increase of the electricity demand could therefore be satisfied by these resources for a green transition of the Colombian system.…”

Section: Case Study: the Colombian Interconnected National Systemmentioning

confidence: 99%

Power System Oscillations with Different Prevalence of Grid-Following and Grid-Forming Converters

Musca

González-Longatt

Sánchez³

2022

Energies

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The oscillatory behaviour of the power system is an aspect that is significantly affected by the increasing integration of converter-based generation sources. Several works address the impact of non-synchronous generation on the operation of the system from different points of view, but only a few studies focus on power-frequency oscillations with a prevalence of generation sources interfaced through power electronics. A lack of research can be found in particular in the comparative analysis of the two main control strategies for power converters, namely grid-following and grid-forming. The article aims to contribute to this direction, starting from a theoretical analysis of the two control structures and then examining the case study of an existing transmission system. The research provides a specific insight into the fundamental aspects related to synchronisation mechanism and inertial capabilities of both grid-following with synthetic inertia and grid-forming controls. The difference in the relationship between synchronisation unit and inertial capability is recognised as the fundamental aspect determining the different impacts on the oscillatory characteristics of the system. The observation derived in the theoretical analysis is then applied to an actual power system with a high predominance of converter-based generation, considering the Colombian interconnected national system as a case study.

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Large scale integration of renewable energy sources (RES) in the future Colombian energy system

Cited by 73 publications

References 37 publications

Flexibility enhancement measures under the COVID-19 pandemic – A preliminary comparative analysis in Denmark, the Netherlands, and Sichuan of China

Flexibility enhancement measures under the COVID-19 pandemic – A preliminary comparative analysis in Denmark, the Netherlands, and Sichuan of China

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

Power System Oscillations with Different Prevalence of Grid-Following and Grid-Forming Converters

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