An A-frame house from the 1970s has been converted into the Solarferienhaus S3 (Solar Holiday Home S3), an energy-positive holiday home located in a former holiday village in the hilly Chiemgau landscape of Upper Bavaria. Redesigned last year by German architect Thomas Ziesel, the innovative modern home is primarily powered by large photovoltaic panels mounted on both sides of the steeply sloped roof. Natural light floods the interior, which follows a minimalist design to keep the focus on the outdoors.

wooden slats in front of an A-frame building

Designed to house a maximum of four guests, the Solar Holiday Home S3 is suitable for short and long-term stays for vacationers seeking an eco-friendly getaway with easy access to outdoor activities. The holiday home’s close proximity to Chiemsee Lake and Salzburg makes it a prime location for hiking, cycling and swimming in the summer. In winter, opportunities for cross-country skiing and ice-skating are also available nearby.

close-up of solar panels on a sloped roof

beige couch and long dining table under sloped ceilings

To reach these outdoor activities, the holiday home gives guests the chance to rent an electric car or drive a solar-powered catamaran on the Chiemsee Lake. The electric-powered vehicles can be charged using the energy surplus generated by the home’s solar panels mounted on the roof. To maximize the energy surplus, architect Thomas Ziesel designed the home for energy efficiency. The clay building boards that line the interior walls offer added insulation while the south facade is fully glazed to let in plenty of natural light.

Related: Contemporary A-frame home soaks up lakeside views in Mexico

wood dining table connected to a sink

white bed in front of glass window under sloping ceilings

The energy-positive A-frame house features a spacious ground floor with a bedroom, bathroom, kitchen, dining area and a double-height living room that opens up to the outdoor deck on the south side. A loft, accessible via ladder, contains a second sleeping area and a workspace. Views of the Bavarian Alps can be enjoyed throughout the home. The Solar Holiday Home S3 can be booked online at UrlaubsArchitektur Holiday Architecture.

+ Solar Holiday Home S3

+ Architektur Ziesel

Images via Thomas Ziesel

A-frame house with glass wall lit from within at night