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Alqueva Dam
The Alqueva Dam is an arch dam and the centrepiece of the Alqueva Multipurpose Project. It impounds the River Guadiana, on the border of Beja and Évora Districts in south of Portugal. The dam takes its name from the town of Alqueva to its right bank. It creates a large reservoir with an inter-annual regulation capacity from which water may be distributed throughout the region. The dam was completed in 2002 and its reservoir reached the full level, for the first time, in 2010. The power station was commissioned in two stages, stage I in 2004 and stage II in 2013. The Alqueva Dam is the largest dam and artificial lake () in Western Europe. History During the 1950s, the Portuguese Prime Minister, António de Oliveira Salazar, ordered a study of the feasibility of the dam project. The potential benefits of the Alqueva dam were discussed for decades. An initial effort was undertaken after the Carnation Revolution of 1974, but it was abandoned in 1978. The Portuguese government event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moura Municipality
Moura () is a city and a municipality in the District of Beja in Portugal, subdivided into 5 ''freguesias''. The population in 2011 was 15,167, in an area of 958.46 km2. The city itself had a population of 8,459 in 2001. It has now around 11,000 inhabitants. The current Mayor is José Pós de Mina, elected by the Unitary Democratic Coalition. The municipal holiday is 24 June. It is home to Moura Photovoltaic Power Station, one of Europe's largest solar-power facilities. Parishes Administratively, the municipality is divided into 5 civil parishes (''freguesias''): * Amareleja * Moura (Santo Agostinho e São João Baptista) e Santo Amador * Póvoa de São Miguel * Safara e Santo Aleixo da Restauração * Sobral da Adiça Climate Moura has a Mediterranean climate with very hot, dry summers and mild winters. It is one of the driest areas in Portugal with just over of precipitation. Town Twinning Moura has cooperation agreements with the following cities: * Aroche, Sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Solar
Floating solar or floating photovoltaics (FPV), sometimes called floatovoltaics, is solar panels mounted on a structure that floats on a body of water, typically a reservoir or a lake. The market for this renewable energy technology has grown rapidly since 2016. The first 20 plants with capacities of a few dozen kWp were built between 2007 and 2013. Installed power reached 3 GW in 2020, with 10 GW predicted by 2025. The costs for a floating system are 20-25% higher than for ground-mounted systems. Technology features There are several reasons for this development: #''No land occupancy'': The main advantage of floating PV plants is that they do not take up any land, except the limited surfaces necessary for electric cabinet and grid connections. Their price is comparable with land based plants, but floatovoltaics provide a good way to avoid land consumption. #''Installation and decommissioning'': Floating PV plants are more compact than land-based plants, their management is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Évora District
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Dams
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures. Basic concepts An arch is a pure compression form. It can span a large area by resolving forces into compressive stresses, and thereby eliminating tensile stresses. This is sometimes denominated "arch action". As the forces in the arch are transferred to its base, the arch pushes outward at its base, denominated "thrust". As the rise, i. e. height, of the arch decreases the outward thrust increases. In order to preserve arch action and prevent collapse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pumped-storage Hydroelectric Power Stations In Portugal
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potential energy of water, pumped from a lower elevation reservoir to a higher elevation. Low-cost surplus off-peak electric power is typically used to run the pumps. During periods of high electrical demand, the stored water is released through turbines to produce electric power. Although the losses of the pumping process make the plant a net consumer of energy overall, the system increases revenue by selling more electricity during periods of peak demand, when electricity prices are highest. If the upper lake collects significant rainfall or is fed by a river then the plant may be a net energy producer in the manner of a traditional hydroelectric plant. Pumped-storage hydroelectricity allows energy from intermittent sources (such as solar, wind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Portugal
This page is a list of dams and reservoirs in Portugal, arranged by NUTS Regions and Subregions: Norte Alto Tâmega * Alto Tâmega Dam * Daivões Dam * Gouvães Dam Cávado * Caniçada Dam, Parada do Bouro, Vieira do Minho * Salamonde Dam, Salamonde, Vieira do Minho * Vilarinho das Furnas Dam, Campo do Gerês, Terras de Bouro Douro * Cuerda del Pozo Dam * Los Rábanos Dam * San José Dam * Villalcampo Dam * Castro Dam * Miranda Dam * Picote Dam * Bemposta Dam * Aldeadávila Dam * Saucelle Dam * Pocinho Dam * Valeira Dam São João da Pesqueira, São João da Pesqueira * Régua Dam * Carrapatelo Dam, Santa Cristina, Mesão Frio * Crestuma–Lever Dam * Bagaúste Dam, Peso da Régua, Peso da Régua Grande Porto * Crestuma–Lever Dam, Foz do Sousa, Gondomar Minho-Lima * Alto Lindoso Dam, Lindoso, Ponte da Barca Centro Beiras e Serra da Estrela * Sabugal Dam, Sabugal, Sabugal * Barragem Marques da Silva, Seia Beira Baixa * Cabril Dam, Sertã * Fratel Dam, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 2013
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Energy Infrastructure Completed In 2004
In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 2002
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iberian Lynx
The Iberian lynx (''Lynx pardinus'') is a wild cat species endemic to the Iberian Peninsula in southwestern Europe. It is listed as Endangered on the IUCN Red List. In the 20th century, the Iberian lynx population had declined because of overhunting, poaching, fragmentation of suitable habitats, and the population decline of its main prey species, the European rabbit (''Oryctolagus cuniculus''), caused by myxomatosis and rabbit haemorrhagic disease. By the turn of the 21st century, the Iberian lynx was on the verge of extinction, as only 94 individuals survived in two isolated subpopulations in Andalusia in 2002. Conservation measures have been implemented since then, which included improving habitat, restocking of rabbits, translocating, reintroducing and monitoring Iberian lynxes. By 2012, the population had increased to 326 individuals, to 855 in 2020, and to 1,111 in 2021. It is a monotypic species, and is thought to have evolved from '' Lynx issiodorensis''. Taxonomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wild Boars
The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a Suidae, suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species is now one of the widest-ranging mammals in the world, as well as the most widespread Suina, suiform. It has been assessed as least concern on the IUCN Red List due to its wide range, high numbers, and adaptability to a diversity of habitats. It has become an invasive species in part of its introduced range. Wild boars probably originated in Southeast Asia during the Early Pleistocene and outcompeted other suid species as they spread throughout the Old World. , up to 16 subspecies are recognized, which are divided into four regional groupings based on skull height and lacrimal bone length. The species lives in matriarchal societies consisting of interrelated females and their young (both male and female). Fully grown males are usually s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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