Category Archives: Scientific results

Measuring moisture related properties of Ethylene Vinyl Acetate

Authors: S. Rashtchi Polymer based encapsulant materials such as Ethylene Vinyl Acetate (EVA) are commonly used in silicon-based PV modules and play a central role in the structural integrity and hence long term performance of the device. In spite of many advantages, however, water can diffuse through them, leading to swelling and chemical degradation that […]

Outdoor Monitoring – India SEC Dhiraj Magare

Aim: Modeling the effects of environmental parameters on photovoltaic (PV) module performance To analyze the PV module performance one can study the effect of seasonal variation on three different PV technologies (i.e. a-Si (amorphous silicon), HIT (Hetero-junction with Intrinsic Thin layer) and mc-Si (multi crystalline silicon)) installed at National Institute of Solar Energy (NISE), Gurgaon […]

Distribution Voltage Control Considering the Impact of PV Generation on Tap Changers and Autonomous Regulators

The uptake of variable Mega Watts from Photovoltaic(PV) challenges distribution system  operation. The primary problem is significant voltage rise in the feeder that forces existing voltage control devices such as on-load tap changers (OLTCs) and line voltage regulators (VRs) to operate continuously. The consequence is the deterioration their operating life. Also, conventional non-coordinated reactive power […]

The Potential of Demand Side Management to Facilitate PV Penetration

Authors: G. Pillai, G. Putrus, N. Pearsall IEEE PES Innovative Smart Grid Technologies ASIA (ISGT ASIA 2013), Bangalore, India, 10th -13th November 2013 In future smart grids, smart metering, active distribution network management, electric-mobility and a high penetration of distributed generation are anticipated. At times of high PV production and low electricity demand, network voltage rise may […]

Impact of Policy Reforms, in Response to Higher PV Penetration Challenges, on PV Energy Usage

Authors: G. Pillai, G. Putrus, N. Pearsall IGCCIA International Research Conference 2013, Goa, India, 23rd November 2013 The increase of Photovoltaic (PV) penetration levels in electricity distribution networks may result in PV energy generation exceeding the consumer energy demand for certain weather and consumer demand conditions. This will lead to reverse power flow feeding back to the […]

Role of Routine Visual Inspection in Performance Monitoring of Photovoltaic Systems

Authors: G. Pillai, R. S. Anand, N. Pearsall, G. Putrus, T. Georgitsioti, I. Forbes, R. Pon Perumal, S. Srivastava International Conference on Energy Efficient LED Lighting and Solar Photovoltaic Systems at Indian Institute of Technology, Kanpur, India, 27-29 March, 2014 Several factors that lead to long-term degradation of photovoltaic (PV) systems can be identified early in […]

Performance Assessment of Grid-Connected Photovoltaic Inverters Based on Field Monitoring

Authors: G. Pillai, G. Putrus, R. S. Anand, R. Pon Perumal IEEE PEDG-5 Conference, Galway, Ireland, 24th-27th June 2014 Most grid-connected photovoltaic inverters in the Indian market are designed based on European standards and have not been tested in the Indian climate. In this paper, the performances of eight photovoltaic inverters from three different manufacturers connected […]

Generation of Synthetic Benchmark Electrical Load Profiles Using Publicly Available Load and Weather Data

Authors: G. Pillai, G. Putrus, N. Pearsall Elsevier International Journal of Electrical Power and Energy Systems, October 2014 Electrical load profiles of a particular region are usually required in order to study the performance of renewable energy technologies and the impact of different operational strategies on the power grid. Load profiles are generally constructed based on […]

Near-Term Economic Benefits from Grid-Connected Residential PV Systems

Authors: G. Pillai, G. Putrus, T. Georgitsioti, N. Pearsall Elsevier Energy, April 2014 One of the main reasons attributed to the slow uptake of grid-connected residential PV (photovoltaic) systems, is the lack of information about the near-term economic benefits which are as important as long-term viability for residential customers. This paper presents a comparative assessment of […]