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Solar energy is radiant light and heat from the Sun that is harnessed using a range of technologies such as solar power to generate electricity, solar thermal energy (including solar water heating ), and solar architecture. [1] [2] [3] It is an essential source of renewable energy, and its technologies are broadly characterized as either passive solar or active solar depending on how they ...
Romania [a] is a country located at the crossroads of Central, Eastern and Southeastern Europe. [15] [16] [17] It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to the east, and the Black Sea to the southeast. It has a predominantly continental climate, and an area of 238,397 km 2 (92,046 sq mi) with a population of 19 ...