Pumped hydroelectric storage utilization assessment: Forerunner of renewable energy integration or Trojan horse?

Kougias, Ioannis; Szabó, S.

doi:10.1016/j.energy.2017.08.106

Cited by 68 publications

(29 citation statements)

References 24 publications

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“…The pumped storage technology was just a small percentage compared with the conventional hydropower (see Table 2). Its use is historically based in the months of June and July [53]. Regarding the case study of 2018, a greater use in May was also observed.…”

Section: Norwaymentioning

confidence: 93%

The Potential Role of Flexibility During Peak Hours on Greenhouse Gas Emissions: A Life Cycle Assessment of Five Targeted National Electricity Grid Mixes

et al. 2019

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On the path towards the decarbonization of the electricity supply, flexibility and demand response have become key factors to enhance the integration of distributed energy resources, shifting the consumption from peak hours to off-peak hours, optimizing the grid usage and maximizing the share of renewables. Despite the technical viability of flexible services, the reduction of greenhouse gas emissions has not been proven. Traditionally, emissions are calculated on a yearly average timescale, not providing any information about peak hours’ environmental impact. Furthermore, peak-hours’ environmental impacts are not always greater than on the base load, depending on the resources used for those time periods. This paper formulates a general methodology to assess the potential environmental impact of peak-hourly generation profiles, through attributional life cycle assessment. This methodology was applied to five different countries under the INVADE H2020 Project. Evaluation results demonstrate that countries like Spain and Bulgaria could benefit from implementing demand response activities considering environmental aspects, enhancing potential greenhouse gas reductions by up to 21% in peak hours.

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Section: Norwaymentioning

confidence: 93%

The Potential Role of Flexibility During Peak Hours on Greenhouse Gas Emissions: A Life Cycle Assessment of Five Targeted National Electricity Grid Mixes

et al. 2019

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“…Putting things in perspective, the current incumbent electrical energy storage technology is pumped hydro storage (PHS), a hydroelectric energy storage system that accounts for over 99% of installed storage capacity of electrical energy through its 270 sites globally reaching a total generating power capacity of 127 GW. 7,8 PHS together with underground compressed air energy storage (CAES) carry the lowest installed cost per kW h ($$100). The remaining 1% of the installed storage capacity is deployed by compressed air (41.5%) and a plethora of battery systems including LIB, SIB, NaS, advanced Pd-acid and Ni-Cd batteries, ywheel and redox ow batteries.…”

Section: Energy Storage Outlookmentioning

confidence: 99%

High and intermediate temperature sodium–sulfur batteries for energy storage: development, challenges and perspectives

2019

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“…Therefore, it would be very convenient to store the surplus energy from the system and to latter return it when needed. Of all the storage techniques applied to very large systems like the national grids, hydro-pumped storage is at present the most efficient and flexible technique [32], but there are many limitations for their construction: plane orography, a lack of sufficient water, as well as environmental restrictions. Pumped storage is, therefore, very useful to adapt the supply to the demand curve.…”

Section: Surplus and Backup Energiesmentioning

confidence: 99%

“…Pumped storage is, therefore, very useful to adapt the supply to the demand curve. In the particular case of Spain, hydro-pumped storage amounts to about 6 GW of which 3.3 GW [32] is pure pump. This amount of storage is enough for the present needs.…”

Section: Surplus and Backup Energiesmentioning

confidence: 99%

On the Assessment of the 2030 Power Sector Transition in Spain

Gómez-Calvet

Martı́nez-Duart

2019

Energies

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Recently, the European Union has recognized that more ambitious plans in reducing emissions are needed in order to comply with the target 1.5–2° warming limit for this century. Along this line, the main objective of this paper is to study the evolution of the power sector in Spain, taking into account the Paris Agreement and the further European Union Directives. In particular, we have studied the substitution by renewable energies of all coal power plants before 2030. For this study, we have applied linear programming techniques to optimize the deployment of the additional wind and solar resources. If, in addition to the substitution of coal power plants, we also consider the expected increase in demand for the period 2019–2030, we find that the present park of renewables should be increased by a factor of about 115%. We have also statistically analyzed the amount of surpluses and shortages in energy, assuming that the demand curve would have a daily shape similar to the present one. As a result, we have found that additional storage capabilities of around 55 GWh for 11 h would be needed in order not to waste more than 25% surplus energy by curtailment. As for backup, we propose in a first step to use the overwhelming amount of gas combined cycle units which are available.

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Pumped hydroelectric storage utilization assessment: Forerunner of renewable energy integration or Trojan horse?

Cited by 68 publications

References 24 publications

The Potential Role of Flexibility During Peak Hours on Greenhouse Gas Emissions: A Life Cycle Assessment of Five Targeted National Electricity Grid Mixes

The Potential Role of Flexibility During Peak Hours on Greenhouse Gas Emissions: A Life Cycle Assessment of Five Targeted National Electricity Grid Mixes

High and intermediate temperature sodium–sulfur batteries for energy storage: development, challenges and perspectives

On the Assessment of the 2030 Power Sector Transition in Spain

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