The amount of energy - or more precisely, power - to fuel a city is the same, regardless of the energy source. Please note that with many natural sources, such as sunlight, you need to store energy somewhere - in the case of sunlight, you don't get any power at night, and the amount of power gets reduced when it is cloudy. Similarly in the case of wind energy, the amount of power available can get close to zero when there is not much wind. So in those cases, assuming you want to rely EXCLUSIVELY on solar power for example, you need to provide a means to store the energy somewhere. But when solar power is used in combination with other types of energy, this may not be a problem.
The amount of energy - or more precisely, power - to fuel a city is the same, regardless of the energy source. Please note that with many natural sources, such as sunlight, you need to store energy somewhere - in the case of sunlight, you don't get any power at night, and the amount of power gets reduced when it is cloudy. Similarly in the case of wind energy, the amount of power available can get close to zero when there is not much wind. So in those cases, assuming you want to rely EXCLUSIVELY on solar power for example, you need to provide a means to store the energy somewhere. But when solar power is used in combination with other types of energy, this may not be a problem.
Solar, wind ,Hydro and Geo thermal are pretty much tied.
None, they are cute toys that run on the sun's power.
It can be done but it depends on the city's condition and its economy ! Actually solar equipment require a much money, as they are costly.
The answer here would have to depend on the size of said city
That's going to depend on how you get there and where you start from.
Not in our system. The sun makes up almost 99.9% of the whole solar systems mass.
the whole city
About $20/dollars in my city.
it can below the whole city or state away.
A website called whole solar has all the information you need to know about residential solar power systems. They have complete information about switching to a solar powered home and tell the cost of it and much more.
A lot around 30 liters/100km