| 2008 |
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| November 21 |
Solarpraxis Forum 2008, Berlin / Germany
Photovoltaic systems in Africa: regression or optimism?
Market development and success in the distribution of the Solar23 Group
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| 2009 |
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| February 25 - 28 |
Renewable energies show, Lyon / France
From the derogatory law of 2009 to the renewable energies law (EEG) in the context of photovoltaic energy
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| October 8 |
Photovoltaic Forum & Exhibition in Taipei / Taiwan
Photovoltaic systems: Independent power supply or grid connection? The future starts with decentralized energy storage connected to the grid
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