Performances of the first electric storage system of ENEL distribuzione

Consiglio, Lilia; Lembo, G.; Noce, Christian; Eckert, P.; Rasic, Andreja; Schuette, Andreas

doi:10.1049/cp.2013.0922

Cited by 4 publications

(3 citation statements)

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“…In fact, compared with an initial investment (estimated in about €150,000), the modest benefits obtained on the reduction of MV/LV transformer losses are completely overcome by losses of the storage system due to auxiliary consumptions and charge/discharge efficiency (see Table 2 Case 3). Similar considerations about storage losses may be found for other projects involving NaS batteries [37], as well as for projects involving other battery types, for instance Li‐ion batteries [38]. Such results suggest that a single, large size BESS is not suitable to the optimal operation of an LV distribution network, especially due to economic reasons, and address to evaluate the effectiveness of small size BESSs, distributed through an LV network, in further studies.…”

Section: Analysis Of Resultssupporting

confidence: 65%

Optimal operation of a low‐voltage distribution network with renewable distributed generation by NaS battery and demand response strategy: a case study in a trial site

Cresta

Gatta

Geri

et al. 2015

IET Renewable Power Generation

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The purpose of this study is to analyse possible strategies for control and management of an existing lowvoltage (LV) network, also with a supervisor control and data acquisition system with future internet potentialities, in order to flatten the network voltage profile, to improve the power factor at medium voltage supplying busbars, to minimise the overall power losses and then to reduce operating costs. In particular, operational records of the LV network have been acquired over a period of 8 months, with a time rate of 4 snapshots per hour (23,232 measures), and different possible scenarios (each of which compatible with the pilot plant control system and power management) have been analysed. On the base of simulation results carried out by power flow (PF), and optimal PF, studies, the effectiveness, in terms of cost-benefits analysis, of the installation of a suitable sized battery energy storage system, as well as of the implementation of a demand response strategy, has been also assessed. The main results of simulations, measurements and experimental tests are reported and discussed in detail.

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Section: Analysis Of Resultssupporting

confidence: 65%

Optimal operation of a low‐voltage distribution network with renewable distributed generation by NaS battery and demand response strategy: a case study in a trial site

Cresta

Gatta

Geri

et al. 2015

IET Renewable Power Generation

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“…In addition to the modeling studies, there are, to the best of our knowledge, only a few publications with results from field studies. Consiglio et al [20] reported on the site acceptance test of a 0.5 MW system, Koller et al [21] reported on the impact of different applications on a 1 MW system, Bila et al [22] showcased initial performance of a grid connected household BESS. Some studies were more focused on field usage analysis.…”

Section: Introductionmentioning

confidence: 99%

Battery Durability and Reliability under Electric Utility Grid Operations: Analysis of On-Site Reference Tests

et al. 2021

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Grid-tied energy storage will play a key role in the reduction of carbon emissions. Systems based on Li-ion batteries could be good candidates for the task, especially those using lithium titanate negative electrodes. In this work, we will present the study of seven years of usage of a lithium titanate-based battery energy storage system on an isolated island grid. We will show that, even after seven years, the modules’ capacity loss is below 10% and that overall the battery is still performing within specifications. From our results, we established a forecast based on the internal degradation mechanisms of the hottest and coldest modules to show that the battery full lifetime on the grid should easily exceed 15 years. We also identified some inaccuracies in the online capacity estimation methodology which complicates the monitoring of the system.

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“…Another work which is also worth focusing on is research conducted by Koller et al [31], where an electrochemical storage with similar output parameters and power value has been installed in a building's load circuit, enabling frequency control, peak shaving, and the possibility of operating the storage in an island mode with cooperating diesel motors. Moreover, similar to Consiglio et al [32], the efficiency of the large battery storage facility was determined based on actual measurements. In contrast to Koller et al [31], the BES system examined in this paper is considered in terms of maximizing profits from the sale of electricity from a solar power plant while Hemmati and Saboori [30] focus on ensuring the reliability, power quality of the customer, and shaping the load curve.…”

Section: Introductionmentioning

confidence: 99%

Multi Usage Applications of Li-Ion Battery Storage in a Large Photovoltaic Plant: A Practical Experience

et al. 2020

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The number of large energy storage units installed in the power system has increased over the last few years. This fact remains closely linked to the increase in the share of renewable energy in electricity generation. This is necessary to maintain the stability of the grid, which is becoming increasingly difficult to maintain due to the growing number of renewable energy sources (RES). Energy production from these sources is difficult to estimate, and possible unplanned shortages and surpluses in production are the cause of voltage and frequency fluctuations, which is an undesirable state. Consequently, the use of energy storage not only contributes to the regulation of grid operation but can also, under appropriate conditions, constitute an additional load if too much energy is generated by RES, or the source when the generation from RES is insufficient. The main contributions of this paper are as follows: A presentation of practical results achieved by implementing two optimal control strategies for a 1 MW (0.5 MWh) battery energy storage (BES) cooperating with a large 144 MW photovoltaic farm. In the first case, the BES was used to generate curtailment at photovoltaic farm to avoid power grid overload. The second case focuses on maximizing profits from selling the energy produced in periods when the unit price for energy was the highest according to energy market forecasts. In both cases, the storage was used simultaneously to cover the producer’s own demand, which eliminated the costs associated with the purchase of energy from the operator, especially during the night supply. A technical and economic evaluation was prepared for both cases, considering the real profits from the investment. The potential of using the BES to increase the functionality of photovoltaic energy sources was determined and discussed in the paper.

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Performances of the first electric storage system of ENEL distribuzione

Cited by 4 publications

References 0 publications

Optimal operation of a low‐voltage distribution network with renewable distributed generation by NaS battery and demand response strategy: a case study in a trial site

Optimal operation of a low‐voltage distribution network with renewable distributed generation by NaS battery and demand response strategy: a case study in a trial site

Battery Durability and Reliability under Electric Utility Grid Operations: Analysis of On-Site Reference Tests

Multi Usage Applications of Li-Ion Battery Storage in a Large Photovoltaic Plant: A Practical Experience

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