Amareleja (Portuguese pronunciation: [ɐmɐɾɨˈleʒɐ] or [ɐmɐɾɨˈlɐiʒɐ]) is a Portuguese civil parish of the municipality of Moura, in the district of Beja. In 2001, the population was 2763 inhabitants, in an area of 108.56 square kilometres (41.92 sq mi) in area and is one of the hottest places in Europe during the summer (record high 47.4 °C (117.3 °F)).
Archeological vestiges from the Roman epoch are found in the north of the village until the margins of the River Ardila, but they suggest the fields of Amaraleja were occupied by various generations during the pre-history of the region. Antas (dolmens), burial tombs, wall paintings, flint implements, vestiges of metal smelting and Bronze Age tombs (carved into the hills) have been discovered by farmers or during road construction. Roman remnants include the pavements of buildings, circular burial tombs with bowls and fragments of bone, coins with the inscriptions of Emperor Claudius, roof tile, masonry and milling stones. In Barranco de Valtamujo there remains of a Roman bridge, that possibly connect to another along the Ardila River, and near the port of Castelo. This bridge provided a daily crossing for the residents along the margins of the Vale de Navarro, which is known for having many vestiges from antiquity.
During the reign of Sancho II, Moura (the municipal seat) was conquered from the Moors, and a feudal seigneurial system was imposed in the region. Sancho relinquished the village to the Knights Hospitaller, who left their marks in the region of Amareleja (including erecting their cross in some sites). Some of the early buildings were influenced by the Order and other high nobles, who sent their shepards and herds to graze in this part of the Kingdom. Over time a small agglomeration began to form in the area called Montinha, in the place that was later be known as aldeia velha (old farm).
Sustainable energy is the sustainable provision of energy that meets the needs of the present without compromising the ability of future generations to meet their needs.
Technologies that promote sustainable energy include renewable energy sources, such as hydroelectricity, solar energy, wind energy, wave power, geothermal energy, artificial photosynthesis, and tidal power, and also technologies designed to improve energy efficiency.