The extensive R&D and Reliability Testing labs set up at both our plants i.e. Bengaluru and Hyderabad ensure that RenewSys keeps pace with the global developments in Solar PV Technology.

Our teams are continually working on improving the life, ruggedness and performance of our products.

Here are some research papers that have been presented by the team:

EFFECT OF VINYL ACETATE CONTENT ON THE PHOTOVOLTAIC‐ENCAPSULATION PERFORMANCE OF ETHYLENE VINYL ACETATE UNDER ACCELERATED ULTRA‐VIOLET AGING

ABSTRACT: The vinyl acetate (VA) content in ethylene vinyl acetate (EVA) can significantly affect its performance as an encapsulant in photovoltaic modules under field conditions. The effects of accelerated aging on the gel content, mechanical properties, transmittance, Fourier transform infra‐red (FTIR) spectra, thermal stability, degree of crystallinity, and yellowness have… Read More

DEGRADATION IN PHOTOVOLTAIC ENCAPSULATION STRENGTH OF ATTACHMENT: RESULTS OF THE FIRST PVQAT TG5 ARTIFICIAL WEATHERING STUDY

ABSTRACT: Delamination of the encapsulant in photovoltaic (PV) module technology results in immediate optical loss and may enable subsequent corrosion or mechanical damage. The effects of artificial weathering were not previously known; therefore, an empirical study was performed to survey the factors most affecting adhesion... Read More

REVIEW ON METALLIZATION IN CRYSTALLINE SILICON SOLAR CELLS

ABSTRACT: Solar cell market is led by silicon photovoltaics and holds around 92% of the total market. Silicon solar cell fabrication process involves several critical steps which affects cell efficiency to large extent. This includes surface texturization, diffusion, antireflective coatings, and contact metallization. Among the critical processes, metallization is more significant... Read More

ENHANCEMENT OF RESISTANCE AGAINST DAMP HEAT AGING THROUGH COMPOSITIONAL CHANGE IN PV ENCAPSULANT POLY (ETHYLENE-CO-VINYL ACETATE)

ABSTRACT: The most common encapsulant used in the photovoltaic (PV) modules is poly (ethylene-co-vinyl acetate) (PEVA). The characteristics of PEVA can be varied by modulating its vinyl acetate (VA) content. According to the general consensus within the PV industry, PEVA as an encapsulant should have VA content between 28 and 33%... Read More

TECHNICAL PAPERS

EFFECTS OF TEXTURE ADDICTIVE IN LARGE-AREA DIAMOND WIRE CUT MULTI CRYSTALLINE SILICON SOLAR CELLS

ABSTRACT: The silicon PV industry has predominantly used silicon wafers sliced by a steel wire, with silicon carbide particles (slurry wire - SW) as an abrasive and polyethylene glycol as a coolant. Low yield, high total thickness variation (TTV), significant material waste and short wire lifetime (and thus high downtime) of SW cutting technology have prompted the wafer slicing industry to develop an alternative technology. Read More

DEGRADATION IN PHOTOVOLTAIC ENCAPSULANT TRANSMITTANCE: RESULTS OF THE FIRST PVQAT TG5 ARTIFICIAL WEATHERING STUDY

ABSTRACT: Reduced optical transmittance of encapsulants resulting from ultraviolet (UV) degradation is frequently identified as a cause of decreased performance through the service life of photovoltaic modules. However, the present module safety and qualification… Read More

LOSS ANALYSIS ON INLINE PROCESSED MULTI CRYSTALLINE SILICON SOLAR CELLS

ABSTRACT: Crystalline silicon solar cells are well positioned in the photovoltaic (PV) industry due to their electrical performance and reliability over other solar cells. Different types of process approaches (inline/batch) play significant roles in the PV cell performance and its reliability. In order to validate the cell performance with respect to the type of process, it is important to do a systematic analysis on partially processed cells and in completed cells as well. Read More

THE EFFECT OF DEGREE OF GEL CONTENT OF EVA ENCAPSULANT ON THE PROPERTIES OF ENCAPSULANT ITSELF AND FINALLY ON THE RELIABILITY OF THE SOLAR MODULE IN THE FIELD

ABSTRACT: The present study involve the effect of the gel content of the EVA on its performance parameters like Tensile Strength, Elongation, Transparency, Yellowness Index, Volume Resistivity, Adhesion strength, Environmental stability & UV stability; and finally; the net impact of these properties on the performance and durability aspects of PV modules. Read More

INFLUENCE OF MVTR OF AIR-SIDE LAYER OF BACKSHEET ON THE RELIABILITY OF BACKSHEET ITSELF AND CONSEQUENTLY ON THE RELIABILITY OF SOLAR PV MODULE

ABSTRACT: Moisture Vapour Transmission Rate (MVTR), also called Water Vapour Transmission Rate (WVTR) of air-side layer of PV Backsheets plays a significant role on the performance and durability of Backsheet and consequently on the reliability of the PV module. This study reveals that the performance and the reliability of photovoltaic modules are highly influenced by the MVTR of the air-side layer of Backsheet if the core layer of the Backsheet is Polyester based. Read More

EFFECT OF DIFFERENT UV CUT OFF WAVELENGTHS IN EVA ENCAPSULANT ON CR-SI PVMODULE’S PERFORMANCE & RELIABILITY

ABSTRACT:High energy UV radiations are harmful for polymeric materials such as Encapsulant & Backsheet used in the manufacture of PV modules. To protect the PV modules against UV degradation, EVA Encapsulant is added with additive, which cuts off the harmful wavelength present in the sunlight. The PV industry is gradually moving towards Lower UV cut-off wavelengths for the front side of EVA Encapsulant in order to harness the UV radiation up to 300nm, as against 360 nm conventionally. Read More