A micro-grid operation analysis for cost-effective battery energy storage and RES plants integration

Barelli, Linda; Bidini, Gianni; Bonucci, F.

doi:10.1016/j.energy.2016.07.117

Cited by 55 publications

(15 citation statements)

References 23 publications

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“…MG energy performance is evaluated by means of the MG simulation code developed in the Matlab environment for batteries [34] and flywheel/battery hybrid storage sections [21,22]. The code performs power flow management, with a 1 min time step, based on PV production and load profiles.…”

Section: Assessment Of the Annual Operation Of The Storage Systemmentioning

confidence: 99%

“…Lead-gel batteries (which represent an improvement of conventional lead batteries since the electrolyte is like a gelatinous compound, instead of a liquid one) are particularly suitable for bulk heavy storage, thanks to their relative low cost per kWh. Li-ion batteries are largely used in small and medium storage systems, thanks to their high energy to weight ratio, no memory effect, high levels of efficiency and reliability, and low self-discharge; however, they present a high price compared to other storage technologies and critical issues concerning lithium and cobalt availability [34].…”

Section: Analysis Of Alternative Configurationsmentioning

confidence: 99%

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How Hybridization of Energy Storage Technologies Can Provide Additional Flexibility and Competitiveness to Microgrids in the Context of Developing Countries

et al. 2019

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Hybrid microgrids, integrating renewable energy sources and energy storage, are key in extending energy access in the remote areas of developing countries, in a sustainably way and in providing a good quality of service. Their extensive development faces a financing gap, having a high capital expenditure (CAPEX) also due to high storage costs. In the present work, a case study of a Ugandan microgrid was used to compare various battery technologies employed on their own and in a combination with a flywheel, in terms of their durability and the overall levelized cost of energy (LCOE) of the plant. Simulations show how hybrid storage configurations result in a lower LCOE for the current load profile of the microgrid and even more so for two reference residential and industrial load scenarios, suggesting this would remain the best solution even accounting for future socio-economic development. The resulting LCOE for hybrid storage configurations is lower than the average values reported for microgrid projects and represents a promising solution to speed up the development of such electrification initiatives.

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Section: Assessment Of the Annual Operation Of The Storage Systemmentioning

confidence: 99%

Section: Analysis Of Alternative Configurationsmentioning

confidence: 99%

How Hybridization of Energy Storage Technologies Can Provide Additional Flexibility and Competitiveness to Microgrids in the Context of Developing Countries

et al. 2019

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“…This is consistent with the objectives of the IEC T120 work program [10], where Energy Storage Systems (ESSs) are identified as a solution to efficiently deliver sustainable, economic and secure electricity supplies. Indeed, as discussed in [11][12][13], thanks to their excellent skills in terms of scalability and efficiency, ESSs represent one of the best solutions available for a better RES exploitation and penetration. Specifically, the most interesting energy storage technologies suitable to achieve RES penetration targets set by the EU (European Union) are presented in [11].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of a Hybrid Energy Storage System (H-ESS) Coupled to a Photovoltaic (PV) Plant

et al. 2018

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Nowadays energy storage is strongly needed to allow grid safety and stability due to the wide penetration of renewable plants. Mainly economic and technological issues impede a relevant integration of conventional storage devices in the energy system. In this scenario, the hybridization of different storage technologies can be a techno-economic solution useful to overcome these issues and promote their diffusion. Hybridization allows multi-operation modes of the Energy Storage System (ESS), merging the positive features of base-technologies and extending their application ranges. This paper provides a dynamic analysis of a hybrid energy storage system (H-ESS) consisting of a flywheel and a battery pack coupled to a photovoltaic generation plant and a residential load up to 20 kW. A dynamic model of the overall micro-grid (MG) was developed implementing the H-ESS preliminary sizing and a suitable management algorithm. The instantaneous behavior of each component was evaluated. A brief summary of the MG performance at different weather and load conditions was provided together with a characterization of the impact of power fluctuations on the battery current and on the power exchange with the grid.

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“…Some research has focused on the technological field of micro-grids, such as, power generation technology [7,8], energy storage technology [9,10], control and protection technology [11,12], energy exchange technology [13,14], micro-grid system optimization [15,16] and other key technologies. Other research has focused on micro-grids from the perspective of economy and management, including costs and benefits of investment [17], the market operation mechanism [18], social benefits and social welfare effects [19], auction mechanism [20], and cooperation between stakeholders of micro-grid [21].…”

Section: Introductionmentioning

confidence: 99%

Incentive Mechanism of Micro-grid Project Development

2018

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Due to the issue of cost and benefit, the investment demand and consumption demand of micro-grids are insufficient in the early stages, which makes all parties lack motivation to participate in the development of micro-grid projects and leads to the slow development of micro-grids. In order to promote the development of micro-grids, the corresponding incentive mechanism should be designed to motivate the development of micro-grid projects. Therefore, this paper builds a multi-stage incentive model of micro-grid project development involving government, grid corporation, energy supplier, equipment supplier, and the user in order to study the incentive problems of micro-grid project development. Through the solution and analysis of the model, this paper deduces the optimal subsidy of government and the optimal cooperation incentive of the energy supplier, and calculates the optimal pricing strategy of grid corporation and the energy supplier, and analyzes the influence of relevant factors on optimal subsidy and incentive. The study reveals that the cost and social benefit of micro-grid development have a positive impact on micro-grid subsidy, technical level and equipment quality of equipment supplier as well as the fact that government subsidies positively adjust the level of cooperation incentives and price incentives. In the end, the validity of the model is verified by numerical analysis, and the incentive strategy of each participant is analyzed. The research of this paper is of great significance to encourage project development of micro-grids and to promote the sustainable development of micro-grids.

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A micro-grid operation analysis for cost-effective battery energy storage and RES plants integration

Cited by 55 publications

References 23 publications

How Hybridization of Energy Storage Technologies Can Provide Additional Flexibility and Competitiveness to Microgrids in the Context of Developing Countries

How Hybridization of Energy Storage Technologies Can Provide Additional Flexibility and Competitiveness to Microgrids in the Context of Developing Countries

Dynamic Analysis of a Hybrid Energy Storage System (H-ESS) Coupled to a Photovoltaic (PV) Plant

Incentive Mechanism of Micro-grid Project Development

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