PhD Professor, The Bucharest University of Economic Studies

Research

RECENT KEY PROJECTS

Interdisciplinary ICT & Energy

RECENT KEY PUBLICATIONS

Oprea, S-V., Bâra, An Edge-Fog-Cloud Computing Architecture for IoT and Smart Metering Data, Peer-to-Peer Networking and ApplicationsSpringer2022
Oprea, S-V., Bâra, A., Mind the gap between PV generation and residential load curves: Maximizing the roof-top PV usage for prosumers with an IoT-based Adaptive Optimization and Control Module, Expert Systems with Applications, Volume 212, February 2023, 118828, https://doi.org/10.1016/j.eswa.2022.118828Elsevier2022
Oprea, S-V., Bâra, A., A measurement model for electricity Consumers’ awareness with covariance structure Analyses. A solid pillar for boosting demand response programs, Sustainable Energy Technologies and Assessments, Volume 53, Part C, October 2022, 102738, https://doi.org/10.1016/j.seta.2022.102738Elsevier2022
Oprea, S-V., Bâra, A., Ciurea C.E., A novel cost-revenue allocation computation for the competitiveness of balancing responsible parties, including RES. Insights from the electricity market in Renewable Energy, Renewable Energy, Volume 199, November 2022, Pages 881-894, https://doi.org/10.1016/j.renene.2022.09.007Elsevier2022
Simona-Vasilica Oprea, Adela Bâra, A signaling game-optimization algorithm for residential energy communities implemented at the edge-computing side, Computers & Industrial Engineering, Volume 169, 2022, 108272, ISSN 0360-8352, https://doi.org/10.1016/j.cie.2022.108272. Computers & Industrial Engineering 174 (2022) 108812:Elsevier2022
Simona-Vasilica Oprea, Adela Bâra, Vlad Diaconita. „A motivational local trading framework with 2-round auctioning and settlement rules embedded in smart contracts for a small citizen energy communityRenewable Energy, Volume 193, 2022, Pages 225-239, ISSN 0960-1481,
https://doi.org/10.1016/j.renene.2022.04.149.
Elsevier2022
Simona-Vasilica Oprea, Adela Bâra, Cristian-Eugen Ciurea, and Laura F. Stoica. 2022. „Smart Cities and Awareness of Sustainable Communities Related to Demand Response Programs: Data Processing with First-Order and Hierarchical Confirmatory Factor AnalysesElectronics 11, no. 7: 1157. https://doi.org/10.3390/electronics11071157MDPI2022
SV Oprea, A Bara, Feature engineering solution with structured query language analytic functions in detecting electricity frauds using machine learning. Sci Rep 12, 3257. https://doi.org/10.1038/s41598-022-07337-7Nature
Research
2022
Oprea S-V, Bâra A, V. Diaconita, C. Ceaparu, A. Ducman, Big Data Processing for Commercial Buildings and Assessing Flexibility in the Context of Citizen Energy Communities, IEEE Access, vol 9, pp 168715-168730, ISSN: 2169-3536, 2021, DOI: 10.1109/ACCESS.2021.3137352IEEE2021
Oprea S-V, Bâra A, Puican FC, Radu IC. Anomaly Detection with Machine Learning Algorithms and Big Data in Electricity Consumption. Sustainability. 2021; 13(19):10963. https://doi.org/10.3390/su131910963MDPI2021
Oprea, SV., Bâra, A. Machine learning classification algorithms and anomaly detection in conventional meters and Tunisian electricity consumption large datasets, Computers and Electrical Engineering, Volume 94, September 2021, https://doi.org/10.1016/j.compeleceng.2021.107329Elsevier2021
Oprea, SV., Bâra, A. Edge and fog computing using IoT for direct load optimization and control with flexibility services for citizen energy communities, Knowledge-Based Systems
Volume 228, 27 September 2021, https://doi.org/10.1016/j.knosys.2021.107293
Elsevier2021
Oprea, SV., Bâra, A. & Ifrim, G.A. Optimizing the Electricity Consumption with a High Degree of Flexibility Using a Dynamic Tariff and Stackelberg Game. Journal of Optimization Theory and Application (2021), 190, pages 151–182, https://doi.org/10.1007/s10957-021-01876-1Springer2021
S.V. Oprea, A. Bara, Devising a trading mechanism with a joint price adjustment for local electricity markets using blockchain. Insights for policy makers, Energy Policy, Volume 152, May 2021, https://doi.org/10.1016/j.enpol.2021.112237Elsevier2021
Simona Oprea, Adela Bara, Bogdan George Tudorica, Maria Irene Calinoiu, Mihai Alexandru Botezatu, Insights into Demand Side Management with Big Data Analytics in Electricity Consumers’ Behavior, Computers and Electric Engineering (Q2) – Volume 89, January 2021, https://www.sciencedirect.com/science/article/pii/S0045790620307540Elsevier2021
SV OPREA, A BÂRA, AI Andreescu, Two Novel Blockchain-Based Market Settlement Mechanisms Embedded into Smart Contracts for Securely Trading Renewable Energy, IEEE Access (Q1), November 2020, DOI: 10.1109/ACCESS.2020.3040764,  https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9272276 IEEE2020
S. Teimourzadeh;O. B. Tör;M.E. Cebeci;A. Bara;S. V. Oprea;S. M. Kısakürek, Enlightening Customers on Merits of Demand-Side Load Control: A Simple-But-Efficient-Platform, IEEE Access, October 2020, DOI: 10.1109/ACCESS.2020.3032745, https://ieeexplore.ieee.org/document/9234487IEEE2020
Oprea, S.-V.; Bâra, A.; Bologa, R.A.; Preotescu, D.; Coroianu, L.; A Trading Simulator Model for the Wholesale Electricity Market, IEEE Access, October 2020, https://ieeexplore.ieee.org/document/9215970, DOI: 10.1109/ACCESS.2020.3029291, (Volume: 8) Page(s): 184210 – 184230IEEE2020
S.V. Oprea, Bara, A,  Ultra-short-term forecasting for photovoltaic power plants and real-time key performance indicators analysis with big data solutions. Two case studies – PV Agigea and PV Giurgiu located in Romania, Computers in Industry (Q1), Volume: 120, Article Number: 103230, DOI: 10.1016/j.compind.2020.103230, Published: September 2020, WOS:000538762600005Elsevier2020
S.V. Oprea, Bara, A, Preda, S, Tor, OB, A Smart Adaptive Switching Module Architecture Using Fuzzy Logic for an Efficient Integration of Renewable Energy Sources. A Case Study of a RES System Located in Hulubesti, Romania, Sustainability (Q2), Volume: 12, Issue: 15, Article Number: 6084, DOI: 10.3390/su12156084, Published: August 2020, WOS:000559515100001MDPI2020
S.V. Oprea, Bara, A, Tudorica, BG, Dobrita, G, Sustainable Development with Smart Meter Data Analytics Using NoSQL and Self-Organizing Maps, Sustainability (Q2), Volume: 12, Issue: 8, Article Number: 3442, DOI: 10.3390/su12083442, Published: April 2020, WOS:000535598700375MDPI2020
Tor, OB, Cebeci, ME, Koc, M, Teimourzadeh, S,  Atli, D, S.V. Oprea, Bara, A, Peak shaving and technical loss minimization in distribution grids: a time-of-use-based pricing approach for distribution service tariffs, Turkish Journal of Electrical Engineering and Computer Sciences, Volume: 28, Issue: 3, Pages: 1386-1404, DOI: 10.3906/elk-1907-30, Published: 2020, WOS:000532359500014TUBITAK2020
S.V. Oprea, Bara, A, Setting the Time-of-Use Tariff Rates With NoSQL and Machine Learning to a Sustainable Environment, IEEE ACCESS (Q1), Volume: 8, Pages: 25521-25530, DOI: 10.1109/ACCESS.2020.2969728, Published: 2020, WOS:000524658400002IEEE2020
Cebeci, ME, Tor, OB, Oprea, SV, Bara, A, Consecutive Market and Network Simulations to Optimize Investment and Operational Decisions Under Different RES Penetration Scenarios, IEEE Transactions on Sustainable Energy (Q1), Volume: 10, Issue: 4, Pages: 2152-2162, DOI: 10.1109/TSTE.2018.2881036, Published: October 2019, WOS:000487199700050IEEE2019
Oprea, SV, Bara, A, Ifrim, GA, Coroianu, L, Day-ahead electricity consumption optimization algorithms for smart homes, Computers & Industrial Engineering (Q1), Volume: 135, Pages: 382-401, DOI: 10.1016/j.cie.2019.06.023, Published: September 2019, WOS:000482244100030Elsevier2019
Teimourzadeh, S, Tor, OB, Cebeci, ME, Bara, A, Oprea, SV, A three-stage approach for resilience-constrained scheduling of networked microgrids, Journal of Modern Power Systems and Clean Energy (Q2), Volume: 7, Issue: 4, Pages: 705-715, DOI: 10.1007/s40565-019-0555-0, Published: July 2019, WOS:000477895600005Springer2019
Oprea, SV, Bara, A, Machine Learning Algorithms for Short-Term Load Forecast in Residential Buildings Using Smart Meters, Sensors and Big Data Solutions, IEEE Access (Q1), Volume: 7, Pages: 177874-177889, DOI: 10.1109/ACCESS.2019.2958383, Published: 2019, WOS:000509483800046MDPI2019
Oprea, SV, Bara, A, Preotescu, D, Elefterescu, L , Photovoltaic Power Plants (PV-PP) Reliability Indicators for Improving Operation and Maintenance Activities. A Case Study of PV-PP Agigea Located in Romania, IEEE Access (Q1), Volume: 7, Pages: 39142-39157, DOI: 10.1109/ACCESS.2019.2907098, Published: 2019, WOS:000464212600001IEEE2019
Oprea, SV, Bara, A, Diaconita, V, Sliding Time Window Electricity Consumption Optimization Algorithm for Communities in the Context of Big Data Processing, IEEE Access (Q1), Volume: 7, Pages: 13050-13067, DOI: 10.1109/ACCESS.2019.2892902, Published: 2019,  WOS:000458177800075IEEE2019
Preda, S, Oprea, SV, Bara, A, Belciu, A, PV Forecasting Using Support Vector Machine Learning in a Big Data Analytics Context, Symmetry-Basel (Q2), Volume: 10, Issue: 12, Article Number: 748, DOI: 10.3390/sym10120748, Published: December 2018, WOS:000454725100086MDPI2018
S.V. Oprea, A.Bâra, A.Uță, A. Pîrjan, G. Căruțașu, Analyses of Distributed Generation and Storage Effect on the Electricity Consumption Curve in the Smart Grid Context, Sustainability (Q2) 2018, 10, 2264; doi:10.3390/su10072264, MDPI, 2017, IF 2,075, AIS 0,322 (2017), WOS:000440947600155MDPI2018
S.V. Oprea, A. Bâra, G.Ifrim, Flattening the electricity consumption peak and reducing the electricity payment for residential consumers in the context of smart grid by means of shifting optimization algorithm, Elsevier Computers & Industrial Engineering (Q1), Volume 122, August 2018, Pages 125-139, Elsevier, https://doi.org/10.1016/j.cie.2018.05.053, IF 3.195, AIS 0,770 (2017), WOS:000438478700008Elsevier2018
S.V. Oprea, A.Bâra, G. Majstrovic, Aspects Referring Wind Energy Integration from the Power System Point of View in the Region of Southeast Europe. Study Case of Romania, Energies, 2018, 11, 251; doi:10.3390/en11010251, 2018, IF 2,676, AIS 0,468 (2017), WOS:000424397600250MDPI2018
S.V. Oprea, A. Pîrjan, G. Căruțașu, D.M. Petroșanu, A. Bâra, J.L. Stănică, C. Coculescu, Developing a Mixed Neural Network Approach to Forecast the Residential Electricity Consumption Based on Sensor Recorded Data, Sensors, 2018, 18, 1443; doi:10.3390/s18051443, 2018, IF 2,475, AIS 0,554 (2017), WOS:000435580300142MDPI2017
S.V. Oprea, A.Bâra, A. Reveiu, Informatics Solution for Energy Efficiency Improvement and Consumption Management of Householders, Energies, 2018, 11, 138; doi:10.3390/en11010138, 2018, IF 2,676, AIS 0,468 (2017), WOS:000424397600138MDPI2017
S.V. Oprea, A.Bâra, Analyses of Wind and Photovoltaic Energy Integration from the Promoting Scheme Point of View: Study Case of Romania, Energies, 2017, 10, 2101; doi:10.3390/en10122101, 2017, IF 2,676, AIS 0,468 (2017),  WOS:000423156900172MDPI2017
A. Pîrjan, S.V. Oprea, G. Căruțașu, D.M. Petroșanu, A. Bâra, C. Coculescu, Devising Hourly Forecasting Solutions Regarding Electricity Consumption in the Case of Commercial Center Type Consumers, Energies, 2017, 10(11), 1727; (doi:10.3390/en10111727); ISSN: 1996-1073, SRI: 0.498; IF: 2.707 (2016), WOS:000417046500046MDPI2017
S.V. Oprea, A.Bâra, M. Cebeci, O.B. Tor, Promoting peak shaving while minimizing electricity consumption payment for residential consumers by using storage devices, TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES, Turk J Elec Eng & Comp Sci, E-ISSN: 1303-6203 ISSN: 1300-0632, DOI: 10.3906/elk-1606-152, 2017, SRI: 0.119; IF:0.766 (2016), WOS:000412571400019TUBITAK2017
I.Lungu, A.Bâra, G.Căruțașu, A.Pîrjan, S.V. Oprea, Prediction intelligent system in the field of renewable energies through neural networks, Economic Computation and Economic Cybernetics Studies and Research, nr.1/2016, ISSN 0424-267X, factor impact 0.406, SRI: 0.029; WOS:000372478800005EcoCyb2016
I. Lungu, G. Căruţaşu, A. Pîrjan, S.V. Oprea, A. Bâra, A two-step forecasting solution and upscaling technique for small size wind farms located on hilly terrain in Romania, Studies in Informatics and Control Journal, vol 25/issue 1, 2016, ISSN 1220-1766, factor impact 0.913, SRI 0.170; WOS:000372945700009SIC-ICI2016
A. Bâra, I. Lungu, S.V. Oprea, I. Botha, A. Chinie, Model assumptions for efficiency of wind power plants’ operation, Economic Computation and Economic Cybernetics Studies and Research, nr. 4/2014, ISSN 0424-267X, factor impact 0.406, SRI: 0.029; WOS:000346684700007EcoCyb2014