Solar energy is radiant light and heat from the Sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture and artificial photosynthesis.
It is an important source of renewable energy and its technologies are broadly characterized as either passive solar or active solar depending on the way they capture and distribute solar energy or convert it into solar power. Active solar techniques include the use of photovoltaic systems, concentrated solar power and solar water heating to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
The large magnitude of solar energy available makes it a highly appealing source of electricity. The United Nations Development Programme in its 2000 World Energy Assessment found that the annual potential of solar energy was 1,575–49,837 exajoules (EJ). This is several times larger than the total world energy consumption, which was 559.8 EJ in 2012.
Solar Energy is a peer-reviewed scientific journal covering research on solar energy such as photovoltaics and solar heating, but also its indirect usages like wind power or bioenergy. It is published by Elsevier on behalf of the International Solar Energy Society. The editor-in-chief is Yogi Goswami. According to the Journal Citation Reports, the journal has a 2013 impact factor of 3.541.
Coordinates: 10°S 76°W / 10°S 76°W / -10; -76
Peru (i/pəˈruː/; Spanish: Perú [peˈɾu]; Quechua: Piruw [pɪɾʊw];Aymara: Piruw [pɪɾʊw]), officially the Republic of Peru (Spanish: República del Perú ), is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the west by the Pacific Ocean. Peru is an extremely biodiverse country with habitats ranging from the arid plains of the Pacific coastal region in the west to the peaks of the Andes mountains vertically extending from the north to the southeast of the country to the tropical Amazon Basin rainforest in the east with the Amazon river.
Peruvian territory was home to ancient cultures spanning from the Norte Chico civilization in Caral, one of the oldest in the world, to the Inca Empire, the largest state in Pre-Columbian America. The Spanish Empire conquered the region in the 16th century and established a Viceroyalty with its capital in Lima, which included most of its South American colonies. Ideas of political autonomy later spread throughout Spanish America and Peru gained its independence, which was formally proclaimed in 1821. After the battle of Ayacucho, three years after proclamation, Peru ensured its independence. After achieving independence, the country remained in recession and kept a low military profile until an economic rise based on the extraction of raw and maritime materials struck the country, which ended shortly before the war of the Pacific. Subsequently, the country has undergone changes in government from oligarchic to democratic systems. Peru has gone through periods of political unrest and internal conflict as well as periods of stability and economic upswing.
Peruvian wine is wine made in the South American country of Peru. Peruvian winemaking dates back to the Spanish colonization of the region in the 16th century.
Peru shares a similar climate with wine-producing country Chile, which is favourable for producing wine. In 2008, there were some 14,000 hectares (35,000 acres) of grape plantations in Peru, including table grapes, and some 610,000 hectolitres (13,000,000 imp gal; 16,000,000 US gal) of wine was produced, with an increasing trend in both plantations and wine production. Most vineyards are located on the central coast, around Pisco and Ica, where most of Peru's winemaking and distillation takes place.
Grape varieties cultivated include Albillo, Alicante Bouschet, Barbera, Cabernet Sauvignon, Grenache, Malbec, Moscatel, Sauvignon blanc and Torontel.
The first grapevines were brought to Peru shortly after its conquest by Spain. Spanish chroniclers from the time note that the first vinification in South America took place in the hacienda Marcahuasi of Cuzco. However, the largest and most prominent vineyards of the 16th and 17th century Americas were established in the Ica valley of south-central Peru. In the 1540s, Bartolomé de Terrazas and Francisco de Carabantes began vineyards in Peru. The latter established vineyards in Ica, which Spaniards from Andalucia and Extremadura used to introduce grapevines into Chile.
Perú is a village and rural locality (municipality) in La Pampa Province in Argentina.
Coordinates: 37°38′S 64°09′W / 37.633°S 64.150°W / -37.633; -64.150