The definition of urban is relating to a city or of a city with a population of at least 50,000 people. An example of urban is the nature of Manhattan. urban. of or characteristic of the styles and culture of the inner city, esp. of the black inner city: urban music, fashions, etc. urban.
Renewable energy is generally defined as energy that comes from resources which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.enewable energy resources exist over wide geographical areas, in contrast to other energy sources, which are concentrated in a limited number of countries.
The latest data shows that renewable energy sources accounted for 11,1 percent of energy produced in United States. The most important renewable energy sources in United States are hydropower, wind power, solar power, geothermal power and biomass. Hydropower is renewable energy source that has long tradition in United States. Currently, around 7 percent of nation's total power is produced by hydroelectric plants.