Photovoltaic Characterisation and Degradation due to Soiling

To understand the solar photovoltaic (PV) system in a better way, modelling the PV modules in various operating and weather conditions is necessary. Manufacturers of the PV modules provide electrical parameters only at standard test conditions (STC). Although these values are beneficial for product assessment and benchmarking purposes, they serve little use for the estimation of actual annual energy yield due to their intrinsic non-linear electrical behaviour and the variability in environmental conditions (irradiance, temperature, etc.). Therefore, performance models are built to predict the performance of the PV system at any operating and weather condition. These models predict the current–voltage characteristic of a PV system as a function of irradiance, angle of incidence of solar radiation, the spectrum of sunlight, and temperature.

The proposed work will experimentally test solar PV in a range of harsh environments (e.g. Edinburgh and Dubai) and will investigate the relationship between the electrical characteristics and PV device performance for predicating energy yield and degradation rates. The experiments will be performed using different types of PV panels which are widely employed. Experimental data will be used in a multi-dimensional Newton-Raphson method for the characterisation of a solar panel using a five-parameter approach. This method of characterisation will be used to interrogate causes of PV degradation. Tests will also be performed under extreme soiling conditions which will be artificially deposited on the panels to investigate the influence of e.g. dust storms, a common occurrence in Middle Eastern climates. The outcomes of the project will provide an understanding of the implications of soiling on the performance of PV systems and how to maximise the performance using optimal cleaning intervals.

Informal enquiries should be directed to the primary supervisor, Dr Mehreen Gul.

Applicants should have a first-class honours degree in a relevant subject or a 2.1 honours degree plus Masters (or equivalent). Scholarships will be awarded by competitive merit, taking into account the academic ability of the applicant.

Please complete our online application form and select PhD programme Construction within the application and include the project reference, title and supervisor on your application. Applicants who do not include these details on their application may not be considered.

Please also provide a written proposal, at least one side of A4, outlining how you would approach the research project. You will also be required to upload a CV, a copy of your degree certificate and relevant transcripts and one academic reference. You must also provide proof of your ability in the English language (if English is not your mother tongue or if you have not already studied for a degree that was taught in English). We require an IELTS certificate showing an overall score of at least 6.5 with no component scoring less than 6.0 or a TOEFL certificate with a minimum score of 90 points.

Applicants MUST be available to start the course of study in October 2019.