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Promoting renewable energies - RETS Project

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Solar Photovoltaic Technology<br />

Introduction<br />

Photovoltaic (PV) systems are silicon-based, solar<br />

energy to electricity converters. Overall performance<br />

depends on many factors including latitude, angle of<br />

collector, time of day and month, shading, climatic<br />

conditions and system conversion efficiency. The device<br />

produces direct current (DC) and electronic conversion to<br />

alternating current (AC) is facilitated by a device known<br />

as an inverter.<br />

Employment, market development and generating<br />

capacity<br />

The total cumulative installed capacity to date (2010)<br />

across Europe was reported as being in excess of 29,000<br />

MW peak with capacity leaders being Germany, Spain and<br />

Italy. The market development of this technology has<br />

been very much linked with the adoption of national<br />

<strong>renewable</strong> energy feed-in tariffs.<br />

It is estimated that employment linked with the<br />

manufacture and deployment of this technology across<br />

the EU is in excess of 268,000. In general countries at<br />

the top of the installed capacity league<br />

table have mirrored the technological<br />

roll-out with jobs.<br />

The market is valued at approximately<br />

€45,500 million.<br />

PV panels in Weinbourg, France<br />

EU resource assessment<br />

The potential for energy capture varies with latitude<br />

across the EU. For most countries with northerly<br />

latitudes, 1 kW peak of installed PV will produce around<br />

740 kWhe per year whilst for countries with more<br />

southern latitudes this could increase to over 1,400 kWh e<br />

per year.<br />

The EU commission’s forecast suggests that PV could<br />

provide 12% of European electricity demand by 2020.<br />

European countries with high solar irradiation and high<br />

electricity prices e.g. Spain, Italy are expected to have<br />

PV cost of electricity production at ‘grid parity’ by 2012<br />

and most other EU countries by 2020.<br />

Research, development and demonstration in the EU<br />

The key areas for PV research are:<br />

Improvements in efficiency and material<br />

intensities in current crystalline PV technologies;<br />

Improvements in efficiency and lifespan of thin<br />

film PV technologies;<br />

Development of third generation ultra-high<br />

efficiency, low cost novel technologies;<br />

New methods of grid management e.g. advanced<br />

communications and condition monitoring, to<br />

allow high levels of PV power in the system;<br />

Reducing ‘balance of system’ i.e. inverter,<br />

controller, isolator etc. costs.<br />

<strong>RETS</strong> Compendium – © 2012 <strong>RETS</strong> Consortium<br />

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