People want to rest under the shade with a natural, soft beam of sunlight. Especially, the natural, soft beam of sunlight passing through leaves make people feels comfortable. I propose a bench that provides a feeling like they are under the shade of a tree. This Bench should be set by a windy place in a park and a square, so wind power can be adapted. This could make it possible for you to save energy.
Wind power & Street lamp Transparency and opaque parts of the shield make very similar images like the natural shade of a tree. The inside of the flower looks like a stamen which can act like a wind power turbine so that it makes electricity for lighting at night.
Combination The hexagon shield looks like a morning glory is possible to be installed in individual or combination. The combination of all benches makes an image of a flower garden.