Ewan D. Dunlop

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We present a GIS database of solar radiation and photovoltaic (PV) potential estimations of 10 European Union Candidate Countries. The database has been integrated with a web application to provide support to decision-makers, researchers and industry in addressing national/regional PV development plans. An application was developed to browse and query GIS(More)
The Matrix and Performance Surface Methods of Energy Rating are related techniques under development for the determination of electrical yield and is intended to be a more useful predictor of performance for installers than Wp alone. Here a power matrix or performance surface as a function of irradiance and ambient temperature P(Gi, Ta) is linked to a(More)
We have analyzed the variability of solar radiation in the Mediterranean and Black Sea regions by comparing yearly and monthly averages to long-term average values calculated from the HelioClim-1 database. Daily sums of global horizontal irradiation are considered for 18 years in the period 1985-2004. Standard deviation of yearly sums of global horizontal(More)
Light dependent current transport mechanisms are the main reason for the failure of the superposition principle of dark and light IV curves of most chalcogenide solar cells. While the photocurrent collection is nearly constant, a significant variation of the forward bias characteristics of these devices takes place as effect of illumination. Different(More)
We present a GIS database of solar radiation and photovoltaic (PV) potential estimations of 10 European Union Candidate Countries created to support. The database was integrated with a web application to provide access also for a broad public. An application was developed to browse and query GIS maps and to do a simple calculation for any location in the(More)
The energy yield of photovoltaic (PV) modules depends not only on the module performance at standard test conditions (STC) but rather at a range of operating conditions with varying irradiances and temperatures. Methods for energy yield prediction have been successfully developed for c-Si. However, the determination of energy rating of a PV module is rather(More)
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