| Rural area power supply in Nigeria: a cost comparison of the photovoltaic, diesel/gasoline generator and grid utility options OU Oparaku Renewable Energy 28 (13), 2089-2098, 2003 | 87 | 2003 |
| Positive and future prospects of solar water heating in Nigeria SN Agbo, OU Oparaku The Pacific Journal of Science and Technology 7 (2), 191-198, 2006 | 48 | 2006 |
| Jathropha curcas and citrus aurantium leaves dye extract for use in dye sensitized solar cell with TiO2 films AC Nwanya, PE Ugwuoke, PM Ejikeme, OU Oparaku, FI Ezema International Journal of Electrochemical Science 7 (11), 11219-11235, 2012 | 44 | 2012 |
| Renewable energy penetration in Nigeria: a study of the South-East zone CC Uzoma, CE Nnaji, CN Ibeto, CG Okpara, OO Nwoke, IO Obi, ... Continental J. Environmental Sciences 5 (1), 1-5, 2011 | 40 | 2011 |
| Photovoltaic systems for distributed power supply in Nigeria OU Oparaku Renewable energy 25 (1), 31-40, 2002 | 34 | 2002 |
| Experimental investigation of a photovoltaic-powered solar cassava dryer CN Anyanwu, OU Oparaku, SO Onyegegbu, U Egwuatu, NI Edem, ... Drying Technology 30 (4), 398-403, 2012 | 30 | 2012 |
| Assessment of the cost-effectiveness of photovoltaic systems for telecommunications in Nigeria OU Oparaku International journal of solar energy 22 (3-4), 123-129, 2002 | 27 | 2002 |
| A Comprehensive Review on Recent Maximum Power Point Tracking of a Solar Photovoltaic Systems using Intelligent, Non-Intelligent and Hybrid based Techniques VHU Eze, UO Oparaku, AS Ugwu, CC Ogbonna International Journal of Innovative Science and Research Technology 6 (5 …, 2021 | 23 | 2021 |
| A Comprehensive Review of Artificial Neural Network Techniques Used for Smart Meter-Embedded forecasting System CC Ogbonna, VHU Eze, ES Ikechuwu, O Okafor, OC Anichebe, ... IDOSR Journal of Applied Science 8 (1), 13-24, 2023 | 18 | 2023 |
| A design algorithm for batch stirred tank transesterification reactors CN Anyanwu, CC Mbajiorgu, OU Oparaku, EU Odigboh, UN Emmanuel Energy conversion and management 62, 40-46, 2012 | 17 | 2012 |
| Solar Energy Use in Nigeria: constraints and Possible Solutions OO Nwoke, WI Okonkwo, OU Oparaku Nigeria Journal of Solar Energy 19 (1), 90-93, 2008 | 16 | 2008 |
| A Performance Evaluation of a Multi-Agent Mobile Learning System. CN Udanor, OU Oparaku International Journal of Interactive Mobile Technologies 10 (2), 2016 | 13 | 2016 |
| Design considerations for a photovoltaic-powered waterpumping facility in a rural village near Nsukka OU Oparaku, OC Iloeje Nigerian Journal of Renewable Energy 10, 64-69, 1991 | 13 | 1991 |
| Characterization of Zn/Au back contact to low-doped p-InP O Oparaku, CL Dargan, NM Pearsall, R Hill Semiconductor science and technology 5 (1), 65, 1990 | 13 | 1990 |
| Vulnerability and adaptation to climate change MN Igwebuike, FC Odoh, CI Ezeugwu, NE Oparaku, OU Oparaku Conference Proceedings on Climate Change and the Nigerian Environment, 29th …, 2009 | 10 | 2009 |
| Characterization And Performance Evaluation of 11m3 Biogas Plant Constructed At National Center For Energy Research And Development, University of Nigeria, Nsukka. Continental IS Eze, AU Ofoefule, EOU Uzodinma, EC Okoroigwe, NF Oparaku, JI Eze, ... J. Renewable Energy, 2011 | 9 | 2011 |
| Climate Change, Agriculture and food security MN Igwebuike, FC Odoh, CI Ezeugwu, NF Oparaku, OU Oparaku RNC Anyadike, IA Madu and CK Ajaero, Conference Proceedings on Climate …, 2010 | 9 | 2010 |
| Adaptation of a novel fuzzy logic controller to a hybrid renewable energy system EC Nnadozie, OU Oparaku Journal of Energy Research and Reviews 8, 1-10, 2018 | 7 | 2018 |
| Solar-photovoltaics in the deregulated electricity industry of developing countries OU Oparaku Proceedings of the International Conference on Renewable Energy for …, 2006 | 7 | 2006 |
| Design criteria of solar water pumping systems for agricultural production OU Oparaku Nigerian J Solar Energy 14, 62-75, 2003 | 7 | 2003 |
