Water & Solar Energy, From One Package

A large number of people in developing countries suffer from a lack of
. . . access to electricity and safe drinking water.

PhotoFlow is a solar collection system and rainwater,
. . . composed of 8 identical triangular photovoltaic modules,
. . . mounted on a commercial water tank.
Assembling these products together form an octagon,
. . . with a slight inclination of 3 degrees,
. . . this allows water to slide toward the central filter.
The water path continues through a hose,
. . . leading directly into the water tank.

Source:  Solar & Water  NOS