Hello Dear Nabeel, it depends on the peculiarities of the country for example my country, Libya, is rich with Oil and the Gas as the situation in your country, however the PV technology and the solar energy proved to be cost effective on the long run. Countries with high potential of wind energy, for example, the Scandinavian countries the wind energy will be the best option.

Best Regards

Ashraf

Thanks a lot, dear Ashraf Khali. Best regards

The source of power generation varies depending on availability in the country. From the following data (41% coal, 5% oil, 21% gas, 13% nuclear, 16% water, 3% others…. The data source is the International Energy Agency / Organization for Development Cooperation). It is possible to estimate the contribution rates for different generation sources.

In the case of Cuba, the structure of the energy mix in 2017 is the following:

Oil: 95.7% (including 8 thermoelectric power plants, 1,854 generators using fuel-oil and diesel and over 4,000 emergency backup systems). The thermoelectric power plants generated in 2014 around 82% of the total electricity generated in the country in that year.

Renewable (Hydropower, Wind power, Solar photovoltaic, and Bioenergy): 4.03%.

The objective of the government is to have the following composition of the energy matrix in 2030:

Oil: 76%

Biomass: 14%;

Solar photovoltaic: 3%;

Wind energy: 6%;

Hydropower: 1%.

The percentage of electrification of the whole country in 2015 was 97%. Renewable energy source should generate 16% of the total electricity generated in the country in 2015 and 24% in 2030

Dear Nabil,

It depends on the geographical condition and available sources in a particular country. In Nepal, hydroelectricity is a major one contributing almost cent percent elelctricity generation. Besides these conventional source of electricity generation, researchers are now working and advocating about electricity from biomass, tidal energy e.t.c. lately developed techology called Microbial Fuel Cells can generate electricity too via degrading organic wastes. However, power generation is too low but it is applied mostly for wastewater treatment.

I deeply appreciate your shared information dear Jorge Morales Pedraza and Roshan Regmi. Your loyalty to your countries and the detailed scientific research is very clear.Good luck 

Dear Nabeel,

Many thanks for your comments. I do hope that the information provided will be useful to your work.

Best regards,

Jorge

For my country Iran statistics are: Natural gas and petroleum derivatives such as gasoline and fuel oil power traditional thermal power plants that satisfy around 98 percent of Iran's total energy demand. The remaining two percent comes from a combination of hydropower, nuclear, biofuels and other renewable sources.

Dear Mahmoud Omid. In Iraq we rely 100% on oil which is a bad policy. As it was said that the coming wars will be on Water. So increasing the renewable resources for energy is a must. Best regards. 

In Russia we do develop nuclear which is approx 14 per cent but if we consider only the European part of country nuclear provides almost 40%.

Yes dear Yulia Chernyakhovskaya. Good luck 

The most prevalent source of electrical power in my country  is natural gas which is abundance. Incidentally, it is the most vulnerable hence the low level of power generated. This is due to social/political/economic reasons which cannot be discussed now. In the meantime, water power power generation is the cheapest and depends on rainfall and water levels in the dams, among other reasons. 

Our Government of has been trying to diversify into solar production of power and yet to attain significant progress. 

Yes dear Dr Christopher N. Okonkwo, I agree with you about Solar power. Even in our country Iraq it is a good alternative, off course after an economical-environmental study. Best regards. 

Good day Nabeel, the most important source of electricity in my country, Ecuador,  is hydropower. Currently, it accounts for more than 70% in the power generation matrix. Having a renewable energy source like this gives the country a comparative advantage related to fossil fuels-based power generation because hydropower does not depend on oil prices. In addition, hydropower is more cheaper than thermoelectricity based on oil derivatives. Of course, in order to face dry seasons hydropower must be combined with other renewables sources (solar, wind, etc.) and, in a minimum amount, thermopower plants.

Best regards.

Very interesting dear Juan Leonardo Espinoza. Best regards. 

In my country Ghana, power generation remained the same as elsewhere in the world. Natural sources such as water is a dominant source of power generation, accompanied by others, such as solar and wind as well as conventional thermal generations. Increasingly. frequent droughts, which  always results in low levels of water in the three main hydroelectric dams, with the major one being 2006-2007 and 2012 that continues till today have required load shedding to sustain the county’s power supply. As population grows and industries expands, other sustainable power generation sources are being considered, 

Dear Clement Tengey, this is the healthy way(renewable energy resources). Best regards. 

Japan's energy system overview for 2015 is given at the link below. According to the data there, the highest portion of Japan's energy source is natural gas (40%), and renewables are 16%.

https://www.iea.org/media/countries/Japan.pdf

Thanks a lot dear Tatsuo Tabata. Best regards. 

In fact, the renewable energy resources will be the alternative solution for gas in near future, while the natural gas is the most source of energy that is used instead of oil. 

Thanks a lot dear Ali Algaddafi. Best regards. 

Hydro electric, wind and solar energy source are being used as appropriate source in Ethiopian context

Dear Nabeel,

In Brasil Hydro os the mostrar econômicas. Tô compare the others sources It depend of the region that needs energy. Wind os a cheap resource, but It can not reach everywhere. Solar os more economical than oil, but to offer energy any time you have to use storage, then it become more expensive then oil. That is not a simple question. Hope bem helpfull.

Thanks a lot dear Dubale Befikadu and Raphael Bertrand Heideier. Best regards. 

Dear Nabeel,

I think you wanted to ask what primary sources are better than fossils? Crude oil, natural gas and coal need very similar technology using for produce electricity (burn them, boil some water and drive it to a turbine what is on a common axis with an alternator) and have same affect to the environment. Usually renewables can be an alternative way but the actual type is strongly depend on the current geographical location. In my country (Hungary) solar is the most reliable one. Nuclear power is also a possible answer but make more open questions.

Best regards.

Thanks a lot dear Zsolt Végvári. Best regards. 

Solar energy & Wind energy

Thanks a lot dear Abdulrahman Almarshoud. Best regards. 

water power , gases winder power and sun rays power

Thanks a lot dear Wisam W. Alhamadi. Best regards. 

dear

The most economical energy is the hydraulic power of water in northern Iraq and the solar energy in most cities of Iraq

regards

In our country, the generation cost of Hydropower is the cheapest.

Dear Aung Ze Ya, as expected. Best regards

In case of Uruguay (South America), for new additions of generation capacity, wind is the cheapest followed by solar. if ONLY operative cost are considered:

hydropower (USD20/MWh)

wind (USD25/MWh)

solar (USD95/MWh)

fossil fuels (average USD140/MWh)

More information at: www.adme.com.uy 

Best regards,

Very interesting dear Tabar Pagliano. Good luck 

Glad to be of help.

Just one clarification, cost for solar electricity @USD95/MWh includes (capital + operative) cost, as do not have the exact figure for operative cost of solar at hand now.

In case of wind, capital cost (wind park + transmission line) + operative cost (wind park) altogether is in the range of 64~70usd/MWh.

Means in Uruguay case, (capital + operative) cost for either wind or solar is significantly below (just) operative cost of power generation based on fossil fuels, so even more clearly convenient if capital cost for fossil power plants would be integrated in the equation.

Fyr -

Thanks a lot dear Tabare Pagliano for the clarification. Best regards. 

In my Country Hydro power is dominant

Thanks a lot dear Teketay Mulu. Best regards. 

Hello Nabeel,

The Biomass may be another cheap option.