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Andrew Dey

Recent Articles

  • Guest Blogs

    An Energy-Self-Sufficient Community

    From a distance, Feldheim looks like many other rural villages in Germany: a cluster of buildings surrounded by farmland and forests. The backdrop includes numerous wind turbines, but that’s not…

  • Guest Blogs

    German Building Codes Keep Ratcheting Up

    In October of 2013, the German government approved amendments to its Energie Einsparung Verordnung (EnEV), the federal ordinance that mandates energy efficiency for buildings. The revised EnEV reflects the government’s…

  • Guest Blogs

    Germany’s Bioenergy Villages

    The notion that a village can produce as much energy as it consumes is not new in Germany, nor is it exclusive to this country that has set aggressive targets…

  • Guest Blogs

    A Construction Trade Fair in Germany

    I recently attended BauTec, a trade fair for the construction industry that is held annually in Berlin. According to the show’s marketers, BauTec is “the year’s most important trade industry…

  • Guest Blogs

    Visiting a District Heating Plant in Austria

    Annette, our daughters and I just spent a week in Flachau, Austria, with Annette’s family. Flachau is not far from the Austrian city of Graz, where Annette lived until she…

  • Guest Blogs

    A Visit to a German Home Center

    I haven’t actually found any hardware stores in Berlin — something akin to Aubuchon in New Hampshire, or the mom-and-pop hardware stores that may still exist in some small towns…

  • Guest Blogs

    A German Deep-Energy Retrofit

    I recently visited a job site on the outskirts of Berlin that had previously caught my eye. Although the buildings were shrouded in the usual scaffolding and screening, I had…

  • Guest Blogs

    An Energy-Efficiency Conference in Germany

    Germany’s National Energy Agency, or DENA (Deutsche Energie Agentur), recently wrapped up its annual two-day conference in Berlin. The focus of this year’s conference was energy efficiency. I attended the…

  • Guest Blogs

    Germany’s Energy Revolution

    My wife and I decided several years ago to spend a year living in Germany. I wanted finally to become fluent in German, after having been married for many years…