A design for a covered walkway incorporating green energy technology to provide all of the electricity the walkway requires, plus a surplus to feed power back into a city’s grid. From inside, the covered walkway looks like any other: a sheltered area with one wall and a ceiling for pedestrian traffic, lined with monitors for display, information and advertising.
The roof’s surface features lines with photovoltaic cells to generate electricity during daylight hours. Each stantion of the walkway is topped with a vertical-axis windmill. These two sources generate as much or more power than needed to keep the lights and displays for the walkway on, and can produce excess power depending on where the walkway is deployed.
All of its key components exist as fully operational technologies. Funding and logistics are the only serious barriers to turning this design concept into reality.