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Renewable Energy
Renewable energy (or green energy) is energy from renewable natural resources that are replenished on a human timescale. The most widely used renewable energy types are solar energy, wind power, and hydropower. Bioenergy and geothermal power are also significant in some countries. Some also consider nuclear power a renewable power source, although this is controversial. Renewable energy installations can be large or small and are suited for both urban and rural areas. Renewable energy is often deployed together with further electrification. This has several benefits: electricity can move heat and vehicles efficiently and is clean at the point of consumption.[1][2] Variable renewable energy sources are those that have a fluctuating nature, such as wind power and solar power. In contrast, controllable renewable energy sources include dammed hydroelectricity, bioenergy, or geothermal power.
Renewable energy systems have rapidly become more efficient and cheaper over the past 30 years.[3] A large majority of worldwide newly installed electricity capacity is now renewable.[4] Renewable energy sources, such as solar and wind power, have seen significant cost reductions over the past decade, making them more competitive with traditional fossil fuels.[5] In most countries, photovoltaic solar or onshore wind are the cheapest new-build electricity.[6] From 2011 to 2021, renewable energy grew from 20% to 28% of global electricity supply. Power from the sun and wind accounted for most of this increase, growing from a combined 2% to 10%. Use of fossil energy shrank from 68% to 62%.[7] In 2022, renewables accounted for 30% of global electricity generation and are projected to reach over 42% by 2028.[8][9] Many countries already have renewables contributing more than 20% of their total energy supply, with some generating over half or even all their electricity from renewable sources.[10][11]
The main motivation to replace fossil fuels with renewable energy sources is to slow and eventually stop climate change, which is widely agreed to be caused mostly by greenhouse gas emissions. In general, renewable energy sources cause much lower emissions than fossil fuels.[12] The International Energy Agency estimates that to achieve net zero emissions by 2050, 90% of global electricity generation will need to be produced from renewable sources.[13] Renewables also cause much less air pollution than fossil fuels, improving public health, and are less noisy.[12]
The deployment of renewable energy still faces obstacles, especially fossil fuel subsidies,[14] lobbying by incumbent power providers,[15] and local opposition to the use of land for renewable installations.[16][17] Like all mining, the extraction of minerals required for many renewable energy technologies also results in environmental damage.[18] In addition, although most renewable energy sources are sustainable, some are not.
Luton (/ˈluːtən/ ⓘ)[7] is a town and unitary authority with borough status in Bedfordshire, England, with a population at the 2021 census of 225,262.[5][8]
Luton is on the River Lea, 32 miles (50 km) north-west of London,[9] 18 miles (29 km) north-west of Hertford, 20 miles (32 km) south of Bedford[9] and 23 miles (37 km) south-east of Milton Keynes. The town's foundation dates to the sixth century as a Saxon settlement on the river, from which Luton derives its name.[10] Luton is recorded in the Domesday Book as Loitone and Lintone.[11] One of the largest churches in Bedfordshire, St Mary's Church, was built in the 12th century.[12] There are local museums which explore Luton's history in Wardown Park[13] and Stockwood Park.[14]
Luton was once known for hatmaking and also had a large Vauxhall Motors factory. Car production at the plant began in 1905 and continued until its closure in 2002.[15] Production of commercial vehicles continues and the head office of Vauxhall Motors is in the village of Chalton on the northern border of the borough .[16] London Luton Airport opened in 1938 and is now one of Britain's major airports,[17] with three railway stations also in the town. The University of Bedfordshire was created from a merger with the University of Luton;[18] two of its campuses are in Luton.[19]
Luton Town Football Club, nicknamed the Hatters, due to the town's connection to hatmaking, has had several spells in the top flight of the English league as well as a Football League Cup triumph in 1988. They play at Kenilworth Road, their home since 1905; planning permission for a new larger stadium was approved in 2019.[20] Luton International Carnival, the largest one-day carnival in Europe, is held on the day before the last Monday in May;[21][n 1] the Saint Patrick's festival is held on the weekend nearest to Saint Patrick's Day[22] as there is a large Irish community in Luton. The town also has a large Pakistani community which, along with the Irish, were attracted to employment at the Vauxhall car plant.[23][24] Luton Hoo is an English country house, estate and Grade I listed building originally designed by Scottish architect Robert Adam but later transformed to the designs of Robert Smirke.[25]
