What does it mean when it says that wind and solar energy is intermittent?

Variable renewable energy (VRE) or intermittent renewable energy sources (IRES) are renewable energy sources that are not dispatchable due to their fluctuating nature, such as wind power and solar power, as opposed to controllable renewable energy sources, such as dammed hydroelectricity or biomass, or relatively …

Why are wind and solar energy called alternative sources of energy?

Wind and solar energies are called alternative sources of energy because fossil fuels on brink of collapsing and can not be replenished. After they would be exhausted, we would than need and alternate, clean and safe fuel. That is why they are called as alternative sources of energy.

Why is solar wind and hydroelectric energy renewable energy sources?

Hydroelectric energy, solar energy, wind energy are produced from energy sources like water, sunlight and wind respectively that are produced continuously in nature and will not get depleted. Thus, hydroelectric energy, solar energy and wind energy are called renewable energies.

Are tides intermittent?

Although solar and tidal power are fairly predictable (length of days, weather patterns, tidal cycles), they are still intermittent because the time period that electricity can be created is limited.

Why is renewable energy intermittent?

Because wind and solar resources aren’t constantly available and predictable, they’re referred to as intermittent energy resources.

How clean is solar energy?

Solar energy systems/power plants do not produce air pollution or greenhouse gases. Using solar energy can have a positive, indirect effect on the environment when solar energy replaces or reduces the use of other energy sources that have larger effects on the environment.

What is considered clean energy?

Renewable energy, often referred to as clean energy, comes from natural sources or processes that are constantly replenished. For example, sunlight or wind keep shining and blowing, even if their availability depends on time and weather.

How are wind and hydroelectric power sources from the sun?

The sun’s heat also drives the winds, whose energy, is captured with wind turbines. Then, the winds and the sun’s heat cause water to evaporate. When this water vapor turns into rain or snow and flows downhill into rivers or streams, its energy can be captured using hydroelectric power.