Vorarlberg sustainable energy was produced than consumed. Green electricity from Vorarlberg is therefore also sold to the German Westallgäu, to Switzerland and to other Austrian provinces. The largest electricity producer in Vorarlberg is Illwerke AG. They produce 75% of the electricity in Vorarlberg, mainly by hydropower. Owing to their location isolated from the rest of Austria, most people in Vorarlberg speak a very distinct German dialect that other Austrians might have difficulty understanding, since the dialects in the rest of Austria form part of the Bavarian-Austrian language group, whereas the Vorarlberg dialect is part of the Alemannic dialect continuum. Alemannic dialects
Vorarlberg are also spoken in Liechtenstein, Switzerland (as Swiss German), Baden-Württemberg, the south west of Bavaria and the Alsace region of France. The Vorarlberg dialect is further divided into a number of regional sub-dialects (e.g. that of the Montafon, the Bregenz Forest and Lustenau are some of the most distinct) which tend to differ considerably from each other. In fact even within these regions the dialects may vary from one town or village to the next. Traditional costumes ("Tracht") have a long history in Vorarlberg. Many valleys and villages have their own kind of garb, each with special characteristics from certain