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28.02.2013
magazyn fotowoltaika 1/2013 - Poland
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15.05.2012 - 17.05.2012
ASES - National Solar Conference 2012, Denver USA
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17.01.2012 - 19.02.2012
RIO 12 - LAREF 2012 World Climate & Energy Event, Granada, Nicaragua
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19.04.2011 - 21.05.2011
ASES - National Solar Conference 2011, Raleigh USA
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21.02.2011 - 24.02.2011
International Conference for Sustainable Energy Storage, IC-SES 2011; Belfast, UK
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15.07.2010
zillion business review - 37 th edition 2010
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29.04.2010 - 30.04.2010
5th European PV-Hybrid and Mini-Grid Conference
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14.10.2008
SOLAR POWER INTERNATIONAL 2008, San Diego USA
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17.11.2006 - 18.11.2006
RIO 6 World Climate & Energy Event, Rio de Janeiro, Brazil
