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Browsing by Author "Basappa Ayanna, Manjunath"

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Characterization of solar photovoltaic modules in outdoor and indoor conditions

Author: Mkasi, Hlaluku W ; May, Siyasanga I ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Roro, Kittessa T Date: Oct 2019 This paper summarizes the results of solar photovoltaic (PV) module electrical characterization under outdoor and indoor conditions in the Republic of South Africa. Under outdoor conditions, the bi-facial PV modules on fixed racks and dual-axis ... Read more
CSIR’s single axis tracking solar PV plant performance analysis

Author: Simelane, Sengiphile N ; Basappa Ayanna, Manjunath Date: Jun 2017 South Africa faces a two-fold energy challenge where it struggles to meet its electricity demand, while being one of the largest emitters of greenhouse gases in Africa. This sparks the urgent need for expert intervention, with focus placed ... Read more
The effect of soiling on the PV performance ratio for different PV systems

Author: Mienie, S ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Roro, Kittessa T ; Diale, M Date: Jun 2018 Soiling is an important and unpredictable factor that affects PV plant performance. Soiling is dependent on so many factors making it hard to quantify and accurately incorporate in PV prediction models and levelized cost of electricity (LCOE). ... Read more
Effect of using global horizontal or plane of array irradiance for monitoring sun tracking solar photovoltaic plants performance

Author: Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Mienie, S ; Roro, Kittessa T Date: Jun 2018 The performance ratio (PR) is a metric commonly used for assessing the performance of a photovoltaic (PV) plants worldwide. The standard PR calculation method (PRPoA) used in solar PV industry as per the International Electro-technical ... Read more
Effects of grass and concrete reflective surface on the performance of dual axis bifacial solar PV systems

Author: Bembe, MT ; Chowdhury, Daniel SP ; Meeding, Nicoleen ; Lekhuleni, EG ; Basappa Ayanna, Manjunath ; Simelane, Sengiphile N Date: Jun 2018 Consumers are shifting towards renewable energy, particuBember, M.T., Bemblarly solar energy, due to the high cost and demand of conventional electricity. The Council for Scientific and Industrial Research (CSIR) Energy Centre has a vision ... Read more
Electroluminescence imaging of photovoltaic modules

Author: Malefafana, MT ; Pratt, Lawrence E ; Basappa Ayanna, Manjunath ; Roro, Kittessa T Date: Oct 2019 Electroluminescence (EL) imaging is a non-destructive characterization technique used widely across the solar PV industry. Similar to an x-ray image, the EL image allows the analyst to peer inside the PV module and see features that are ... Read more
The field performance of a 558 kWp ground mounted single-axis PV system in Pretoria, South Africa

Author: Roro, Kittessa T ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Lekoloane, Gaoshitwe A ; Klein, Peter ; Koopman, Stephen J Date: Dec 2017 According to a recent Green Tech Media (GTM) publication [Moskowitz, 2017], 23% of all ground-mounted photovoltaic (PV) systems are installed on trackers. Trackers are especially beneficial for commercial and utility scale applications, ... Read more
Field performance of bifacal modules in South Africa

Author: Basappa Ayanna, Manjunath ; Mkasi, Hlaluku W ; Pratt, Lawrence E ; Roro, Kittessa T Date: Nov 2019 This study presents the initial results of field performance analysis conducted on bi-facial modules installed on a fixed tilt rack and dual axis tracker system in Pretoria, South Africa. Bifacial modules produce better energy yield compared ... Read more
Financial benefits of integrating east–west fixed, single and dual axes tracking PV systems in the supply mix of a South African Research Campus

Author: Tazvinga, Henerica ; Moholisa, Tsolo E ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Hlatshwayo, Mluleki C ; Mushwana, Crescent Date: Aug 2018 The use of Photovoltaic (PV) systems in distribution networks has increased in the past few years. The benefits of PV systems connected to the grid include reducing the carbon footprint, improving energy access, and security as well as the ... Read more
Global irradiance on photovoltaic array

Author: Mkasi, Hlaluku W ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Roro, Kittessa T Date: Jun 2018 The amount of available solar irradiance is the most important parameter to determine solar energy generation for any given location. Satellite-based irradiance data is often used as a basis for predicting the energy generation for any location, ... Read more
The importance of PV module reliability research in South Africa

Author: Pratt, Lawrence E ; Roro, Kittessa T ; Basappa Ayanna, Manjunath Date: Jun 2018 This paper will introduce the new C450 international standard for PV module quality assurance programs. Quality assurance testing has been on the rise in the PV industry following the rise in development of large scale PV plants, sometimes ... Read more
Inter laboratory comparison of indoor performance tests on crystalline silicon solar PV modules

Author: Pratt, Lawrence E ; Basappa Ayanna, Manjunath ; May, Siyasanga I ; Roro, Kittessa T ; McCleland, JC ; Zikhali, Q Date: Nov 2019 The paper presents results from an inter laboratory comparison (ILC) of crystalline silicon PV module performance measurements from three different institutions within South Africa. The analysis quantifies the differences in power, current, ... Read more
Performance monitoring of different module technologies and design configurations of PV systems in South Africa

Author: Serameng, T ; Roro, Kittessa T ; Basappa Ayanna, Manjunath ; Cunden, K ; Myeni, S ; Bischof-Niemz, T ; Van Dyk, EE ; Koopman, Stephen J Date: Jun 2016 Performance monitoring of different module technologies and system configurations of Photovoltaic (PV) systems in South Africa is rare which result in few reports being published based on field results of PV systems installed and operated in ... Read more
Power quality analysis of a grid tied 3.3 kWp rooftop solar photovoltaic system with battery storage

Author: May, Siyasanga I ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Mienie, S ; Roro, Kittessa T Date: Jun 2019 This paper outlines the initial results for power quality analysis (PQA) of a single phase 3.3kWp photovoltaic (PV) system with battery storage connected to a low-voltage system at the Council for Scientific and Industrial Research (CSIR), ... Read more
Power quality analysis of low voltage grid-tied network with PV system

Author: Mnisi, MI ; Bokoro, P ; Roro, Kittessa T ; Basappa Ayanna, Manjunath ; Pratt, Lawrence E Date: Nov 2019 Power quality analysis (PQA) in power systems has become important to consider since there has been an increase in distributed energy resources installed on the existing grid, particularly in the area of renewable energy generation. South ... Read more
PV module reliability scorecard - Round 1

Author: Pratt, Lawrence E ; Basappa Ayanna, Manjunath ; May, Siyasanga I ; Mkasi, Hlaluku W ; Maweza, Elijah L ; Roro, Kittessa T Date: Nov 2021 Solar PV system component reliability is key to longterm success for the PV industry, given the 25-year lifespan of PV generators. PV modules are one key component needed to deliver on the lifetime production of PV systems, as they are the ... Read more
Solar PV inverter characterization in indoor laboratory

Author: Basappa Ayanna, Manjunath ; Pratt, Lawrence E ; Roro, Kittessa T Date: Nov 2021 A commercial 3ph 25 kW inverter is characterised at the Smart Grid Laboratory, CEA-INES in accordance with IEC/EN 61727 and EN50530. The minimum, nominal and maximum power point tracking power conversion efficiency for normalized power levels ... Read more

Now showing items 1-17 of 17

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