It looks like you’re interested in solar energy and its applications in water systems and street lighting. Solar energy is a renewable and sustainable source of power that can be harnessed through photovoltaic (PV) panels or solar thermal systems.

1. Solar Water Systems: Solar water systems use solar energy to heat water for domestic, commercial, or industrial purposes.

2. Solar Street Lights: Solar street lights are outdoor lighting systems powered by solar panels. They offer numerous advantages, including reduced energy costs, lower maintenance, and environmental benefits.