Sandro Zehner

Sandro Zehner is not mentioned in either of the provided news articles. The articles focus on different topics related to the Rheingau region of Germany. One article discusses the decline in tourism numbers in the Rheingau and efforts to revitalize the region's appeal through improved marketing and high-quality events. The other article describes a pilot project in the Rheingau-Taunus-Kreis that aims to utilize old night storage heaters to consume electricity during periods of surplus and low cost. Therefore, without further information, it's impossible to provide any details about Sandro Zehner's background, newsworthiness, recent activities, or relevance based on these articles.