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Notice: register_sidebar was called incorrectly. No id was set in the arguments array for the "Footer 2" sidebar. Defaulting to "sidebar-2". Manually set the id to "sidebar-2" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.) in /home/resou48/domains/v2city-expertgroup.eu/public_html/wp-includes/functions.php on line 4986

Notice: register_sidebar was called incorrectly. No id was set in the arguments array for the "Footer 3" sidebar. Defaulting to "sidebar-3". Manually set the id to "sidebar-3" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.) in /home/resou48/domains/v2city-expertgroup.eu/public_html/wp-includes/functions.php on line 4986

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Notice: register_sidebar was called incorrectly. No id was set in the arguments array for the "blog" sidebar. Defaulting to "sidebar-5". Manually set the id to "sidebar-5" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.) in /home/resou48/domains/v2city-expertgroup.eu/public_html/wp-includes/functions.php on line 4986

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Notice: register_sidebar was called incorrectly. No id was set in the arguments array for the "portfolio" sidebar. Defaulting to "sidebar-7". Manually set the id to "sidebar-7" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.) in /home/resou48/domains/v2city-expertgroup.eu/public_html/wp-includes/functions.php on line 4986

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Notice: register_sidebar was called incorrectly. No id was set in the arguments array for the "woocommerce" sidebar. Defaulting to "sidebar-10". Manually set the id to "sidebar-10" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.) in /home/resou48/domains/v2city-expertgroup.eu/public_html/wp-includes/functions.php on line 4986

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Notice: register_sidebar was called incorrectly. No id was set in the arguments array for the "Archives" sidebar. Defaulting to "sidebar-12". Manually set the id to "sidebar-12" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.) in /home/resou48/domains/v2city-expertgroup.eu/public_html/wp-includes/functions.php on line 4986

Notice: register_sidebar was called incorrectly. No id was set in the arguments array for the "experts" sidebar. Defaulting to "sidebar-13". Manually set the id to "sidebar-13" to silence this notice and keep existing sidebar content. Please see Debugging in WordPress for more information. (This message was added in version 4.2.0.) in /home/resou48/domains/v2city-expertgroup.eu/public_html/wp-includes/functions.php on line 4986

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Notice: The called constructor method for WP_Widget in Goodlayers_Video_Widget is deprecated since version 4.3.0! Use
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v2city expertgroup » Renewable energy solutions
Category // Renewable energy solutions

This category is dedicated to developments and progress in the area of the different renewable energy sources and solutions. Innovative and added value achievements for V2C applications in the renewable energy and supply sector are displayed here.