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.
Renewable source of energy means that this source is not  exhaustible by its use in producing electricity or heat (steam) or  mechanical energy.    An example is sola â¦ r energy. Using sunlight to produce electricity  through special devices, called photoelectric cells, will not  exhaust sunlight coming to earth.