Electricity storage requirements to support the transition towards high renewable penetration levels – Application to the Greek power system

Psarros, Georgios N.; Papathanassiou, Stavros A.

doi:10.1016/j.est.2022.105748

Cited by 21 publications

(6 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regarding hybrid stations, the storage component of the station is assumed to be a lithium-ion battery energy storage system (BESS) with a round-trip efficiency of 85%, at the medium-voltage (MV) level, tightly coupled with the RES facility in the MV level. Market clearing prices, utilized in the optimization of the hybrid station operation, are the result of simulating the electricity market, using the fundamental optimization algorithm described in [59]. Figure 8 presents the daily average energy market price, which follows the so-called duck curve, with lower prices during the midday period and higher prices in the evening.…”

Section: Case Study Assumptionsmentioning

confidence: 99%

Export Constraints Applicable to Renewable Generation to Enhance Grid Hosting Capacity

Chatzistylianos,

Psarros,

Papathanassiou

2024

Energies

Self Cite

View full text Add to dashboard Cite

This paper investigates grid export constraints applicable to photovoltaic (PV) and wind farm (WF) installations, both with and without behind-the-meter storage, aimed at enhancing grid hosting capacity. The study focuses on static output power limitations, i.e., simple export constraints that are preventively imposed on renewable energy source (RES) plants regardless of the prevailing network congestion conditions. These constraints are easy to apply, implemented ex ante and out of market, and do not require additional investments in energy storage or advanced devices. They also yield a measurable increase in hosting capacity and grid utilization, with their impact on RES plant operation and return of investment straightforwardly calculable. Analysis defines the level and shape of these constraints assuming an indicative acceptable curtailment level of 5% for each RES technology attributed to the preventing action of the imposed limitations, while the respective implications for RES energy yield and investment viability are explored. The findings indicate that an export power limitation of ca. 68% is effective for stand-alone PVs, while a stepwise static limitation is necessary for stand-alone WFs and WFs with integrated storage to manage midday solar generation peaks. PV plants tightly coupled with storage facilities can handle static limitations as low as 35% with minimal impact on the economic feasibility of the investments.

show abstract

Section: Case Study Assumptionsmentioning

confidence: 99%

Export Constraints Applicable to Renewable Generation to Enhance Grid Hosting Capacity

Chatzistylianos,

Psarros,

Papathanassiou

2024

Energies

Self Cite

View full text Add to dashboard Cite

show abstract

“…Another challenge with renewables is wind curtailment, which can be reduced with the application of PHS as a standing reserve, as analyzed for Turkey's electricity energy demand [45]. Study of the Greek power system proved that enough PHS capacity (1500 MW for analyzed scenario) can impact renewable energy curtailments to go below 1.2% for photovoltaics and 0.8% for wind farms [46].…”

Section: Hybrid Power Systems With Storagementioning

confidence: 99%

Prospects of electricity storage

Topalović

Haas

Ajanović

et al. 2023

Renew. Energy Environ. Sustain.

View full text Add to dashboard Cite

With the expansion of renewables in the electricity markets, research on electricity storage economics is needed for a better understanding of the utilization of these systems and for improving the performance of intermittent variable generation. Collected up-to-date research of electricity storage systems published in a wide range of articles with high impact factors gives a comprehensive review of the current studies regarding all relevant parameters for storage utilization in the electricity markets. Valuable research of technical characteristics from the literature is broadened with the electricity storage analyses from an economic point-of-view. Analysis of selected technologies, considering different perspectives such as their profitability, technical maturity, and environmental aspect, is a valuable addition to the previous research on electricity storage systems. Comparing conducted analysis with the selected literature, electricity storage technologies are analyzed concerning their viability in the electricity markets. Given the current outlook of the electricity market, the main problems for storage's wider integration are still energy storage costs. These can be overcome with different applications of energy storage systems, integration of new market players, or a combination of storage technologies along with the implementation of new energy policies for storage.

show abstract

“…This allows for the management of long-duration HPP storage assets for power supply purposes and, most importantly, for securing the required water reserves for other purposes. Properly constructed rule curves are utilized as instruments to approximate the operation of HPPs in unit-commitment and economic dispatch optimization algorithms [16], while they also provide a baseline in resource adequacy studies to estimate the level of hydro plant contribution to resource adequacy [17]. Such rule curves are constructed based on several criteria, generally applied independently, including the maximization of hydropower production and the fulfillment of water supply, irrigation, and ecologic discharge obligations downstream of the plant [18,19].…”

Section: Introductionmentioning

confidence: 99%

Insights from a Comprehensive Capacity Expansion Planning Modeling on the Operation and Value of Hydropower Plants under High Renewable Penetrations

Chatzistylianos,

Psarros,

Papathanassiou

2024

Energies

Self Cite

View full text Add to dashboard Cite

This paper presents a quantitative assessment of the value of hydroelectric power plants (HPPs) in power systems with a significant penetration of variable renewable energy sources (VRESs). Through a capacity expansion planning (CEP) model that incorporates a detailed representation of HPP operating principles, the study investigates the construction and application of HPP rule curves essential for seasonal operation. A comparative analysis is also conducted between the proposed rule curve formulation and alternative modeling techniques from the literature. The CEP model optimizes installed capacities per technology to achieve predefined VRES penetration targets, considering hourly granularity and separate rule curves for each HPP. A case study involving twelve reservoir hydropower stations and two open-loop pumped hydro stations is examined, accounting for standalone plants and cascaded hydro systems across six river basins. The study evaluates the additional generation and storage required to replace the hydropower fleet under high VRES penetration levels, assessing the resulting increases in total system cost emanating from introducing such new investments. Furthermore, the study approximates the storage capabilities of HPPs and investigates the impact of simplified HPP modeling on system operation and investment decisions. Overall, the findings underscore the importance of reevaluating hydro rule curves for future high VRES penetration conditions and highlight the significance of HPPs in the energy transition towards carbon neutrality.

show abstract

Electricity storage requirements to support the transition towards high renewable penetration levels – Application to the Greek power system

Cited by 21 publications

References 56 publications

Export Constraints Applicable to Renewable Generation to Enhance Grid Hosting Capacity

Export Constraints Applicable to Renewable Generation to Enhance Grid Hosting Capacity

Prospects of electricity storage

Insights from a Comprehensive Capacity Expansion Planning Modeling on the Operation and Value of Hydropower Plants under High Renewable Penetrations

Contact Info

Product

Resources

About