Question

Renewable Energy Engineering Question:

Q) If the sun goes down, what other forms of renewable energy can be used to help provide a continuous flow of power to the grid?

Answer 1

other than solar energy the following renewable energy souces can be used

1) Wind power is the use of air flow through wind turbines to provide the mechanical power to turn electric generators. I is the second mostly used renewable energy source to generate electricity after solar energy.

2) Rain: New solar cell has been developed that can harness electrical energy from rain. Unlike most solar cells, this device has a single sheet of graphene on its upper surface.Rainwater isn’t pure: It contains compounds like ammonium, calcium and sodium, all of which become ions when they’re in solution. When that water sits on top of a layer of graphene, it creates a ‘pseudocapacitor’—spots of unbalanced charge where electrons are donated from one side to the other. Unbalanced charge is basically just a voltage, which means that the we can capture electricity.

3) Tidal: Tidal power or tidal energy is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity. Although not yet widely used, tidal energy has potential for future electricity generation. Tides are more predictable than the wind and the sun.

4) Wave power is the capture of energy of wind waves to do useful work – for example, electricity generation, water desalination, or pumping water. A machine that exploits wave power is a wave energy converter (WEC). Wave power is distinct from tidal power, which captures the energy of the current caused by the gravitational pull of the Sun and Moon. Wave-power generation is not a widely employed commercial technology, although there have been attempts to use it since at least 1890.

5)

Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. The geothermal energy of the Earth's crust originates from the original formation of the planet and from radioactive decay of materials. The geothermal gradient, which is the difference in temperature between the core of the planet and its surface, drives a continuous conduction of thermal energy in the form of heat from the core to the surface.

With water from hot springs, geothermal energy has been used for bathing since Paleolithic times and for space heating since ancient Roman times, but it is now better known for electricity generation. Geothermal power is cost-effective, reliable, sustainable, and environmentally friendly, but has historically been limited to areas near tectonic plate boundaries. Recent technological advances have dramatically expanded the range and size of viable resources, especially for applications such as home heating, opening a potential for widespread exploitation.