ABSTRACT

The bus shelters have been introduced in Gothenburg, Sweden, by the local bus company Gothenburg local traffic company. This Photovoltaic (PV) system is used for illumination in bus shelters. The lamp is controlled with daylight and infrared sensors such that it shines only when someone is in the shelter at night; this reduces electricity consumption. The whole PV system has been mounted high up on a pole. This permits freedom in the location of the bus shelter, as the orientation and tilt can be optimized without influencing the design of the bus shelter. For bus stops in the countryside there is seldom grid electricity available and the extension cost is in the range of 15 000–30 000 USD/km and then the annual fixed cost for the connection is about 300 USD/year. A bus shelter can seldom be placed in a sunny location and facing south.