set $pcebessadei "http://pcebessadei.competence-e.kit.edu";

location ~ /adei-hiu/(.*) {
    proxy_pass $pcebessadei/adei-hiu/$1$is_args$args;
}

location /adei-battery-partner(.*) {
    proxy_pass $pcebessadei/adei-battery-partner/$1$is_args$args;
}

#RewriteRule ^/adei-smartgrid(.*)    http://adei-smartgrid.kaas.kit.edu$1?%{QUERY_STRING} [L]