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The work presented in this paper concerns the design of a specific PV module as a reference device for energy rate measurements as well as for general monitoring purposes. The data collected by the device will give input to an energy rate indicator. The paper will present a description of the specially designed PV module, the integrated monitoring device, as well as the validated method for obtaining an energy rate indicator. Assessment of photovoltaic plants as described in the European Guidelines will be more harmonised using such a reference device.

The reference device is designed as a special mini PV module that provides all data required to calculate with high accuracy the energy rate for the location where it is installed, either be it in optimised open rack installation or in building integrated applications.

Compared to existing reference devices, it does not need additional monitoring instruments. Furthermore it works from low irradiance levels, as from 50 Wattlm2, and can be used in building integrated PY applications, such as facades, cladding systems and integrated roof systems.

Calibration of the device will be performed in the laboratory ESTI at the JRC. The device can be manufactured for the PY -cell type that the modules of a PY plant contain allowing the device to give an energy rate for the whole PY plant. A specially designed logger system makes the reference device operating for months without any intervention (see the paper for details). It allows taking the data from the logger by serial port connection or infrared port by a portable computer. A future option might be the real time monitoring using internet. rnet.

Additional information

Authors: BLOEM J.J, JRC Environment Institite, Renewable Energies Unit, Ispra (IT)
Bibliographic Reference: An oral report given at: 16th European Photovoltaic Solar Energy Conference and Exhibition. Held in: Glasgow (UK), 1-5 May (2001)
Record Number: 200013780 / Last updated on: 2001-09-18
Original language: en
Available languages: en
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