Being the 2nd largest city in Spain, Barcelona is the capital of Catalonia province. It has over 4 million inhabitants. It is a vibrant city that hosts thousands of tourists annually. It is home to university of Barcelona among others.

The finite availability of fossil fuels and environmental pressures drives students in the field of renewable energy to discover and implement new technologies to harness the power of the wind, sun, and water, as well as geothermal and bioenergy options.

Spain, officially the Kingdom of Spain, is a sovereign state and a member state of the European Union. It is located on the Iberian Peninsula in southwestern Europe. Spanish universities regulate access to their degrees, and they fix the academic fees. They can also offer unofficial postgraduate degrees. Madrid has the largest number of bars per capita of any European city and a very active nightlife.

Online learning refers to use of electronic media and information and communication technologies (ICT) in education. With online learning one has the flexibility to access their studies at any time and from anywhere they can log on.