Kielder Water

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Kielder Reservoir
KielderDam.JPG
Kielder Dam in 2007
Northumberland UK relief location map.jpg
Red pog.svg
Kielder Reservoir
Location Northumberland
Coordinates 55°11′N2°30′W / 55.183°N 2.500°W / 55.183; -2.500
Lake type reservoir
Primary inflows River North Tyne, Kielder Burn, Lewis Burn
Primary outflows River North Tyne
Basin  countriesEngland
Managing agency Northumbrian Water
Built1975–1981
First flooded1982
Max. length5.65 miles (9.09 km)
Max. width2 miles (3.2 km)
Surface area 10.86 square kilometres (2,680 acres)
Water volume 200 billion litres (44×10^9 imp gal)
Shore length127.5 mi (44.3 km)
Surface elevation184 m (604 ft)
Islands 1
Sections/sub-basins Bakethin Reservoir
1 Shore length is not a well-defined measure.

Kielder Water is a large man-made reservoir in Northumberland in North East England. It is the largest artificial lake in the United Kingdom by capacity of water and it is surrounded by Kielder Forest, one of the biggest man-made woodlands in Europe. The scheme was planned in the late 1960s to satisfy an expected rise in demand for water to support a booming UK industrial economy. But the decline of traditional heavy industry, together with more water-efficient industrial processes and better control of water supply leakage, served to undermine the original justification for the reservoir and the government-funded project has been criticised as a white elephant. [1]

Contents

Kielder Water is owned by Northumbrian Water, and holds 200 billion litres (44 billion gallons, or 0.2 cubic km), making it the largest artificial reservoir in the UK by capacity (Rutland Water is the largest by surface area). It has a 27.5-mile (44.3 km) shoreline, is 24.6 miles (39.6 km) from the sea, [2] and has a maximum depth of 52 metres (170 ft).

Etymology

The name Kielder was first recorded in 1309 as Keldre. [3] Originating as a river name, [3] Kielder may have the same origin as the various rivers named Calder, such as the one in West Yorkshire. [3] [4] The name may be derived from the Brittonic caleto-/ā, with the root sense of "hard" (Welsh caled), [4] suffixed with -duβr meaning "water" (Welsh dwr). [4]

Derivation from the Gaelic caol dobhar meaning "narrow stream" has also been suggested. [5]

Construction

Kielder Water under construction in the 1970s. Construction of Kielder Reservoir Northumberland.jpg
Kielder Water under construction in the 1970s.

After the scheme was approved by Parliament in 1974, work to build the reservoir and the dam at the hamlet of Yarrow in the Kielder Valley began in 1975. The reservoir and dam were designed for Northumbrian Water by consulting civil engineers Babtie, Shaw and Morton. [6] [7] [8] Sir Frederick Gibberd and Partners were responsible for architectural aspects. [9] Earth moving and infrastructure construction was undertaken in a joint venture with AMEC and Balfour Beatty. [10]

The design meant the loss of numerous farms and a school. About 95 people had been resident in the area prior to its development. [11] The former permanent way of the Border Counties Railway was also taken away through the development of the reservoir.

Work was completed in 1981. Queen Elizabeth II officially opened the project the following year. The valley took a further two years to fill with water completely.

Operations

The reservoir's purpose is to provide compensating discharges into the Kielder Transfer Scheme, where water can be transferred to the North Tyne, Wear and the Tees to support abstractions of water further downstream while maintaining minimum acceptable levels in the rivers in times of drought.

There are two main visitor centres at Kielder Water – Leaplish waterside park and Tower Knowe visitor centre – and other facilities at Kielder, Falstone and Stannersburn villages. It is also one of the region's major tourist venues, attracting more than 250,000 visitors a year who come to enjoy the facilities.

Hydroelectric plant

Kielder Water is also the site of England's largest hydroelectric plant. It was opened by Queen Elizabeth II on 26 May 1982 and is owned by Northumbrian Water. In December 2005, RWE Npower Renewables bought the rights to operate the plant and sell the electricity generated by it, with a contract lasting until 2025. Following the takeover, the turbines were refurbished in 2005–2006, which increased the efficiency of the electricity generation. Controls were also updated, so that the plant can be operated from Dolgarrog in Wales.

The plant generates electricity using dual turbines which produce 6 megawatts of electricity. This comes from a combination of a 5.5 MW Kaplan turbine, which generates electricity when water release takes place, and a 500 kW Francis turbine that generates constantly from the compensation flow of water from the reservoir into the North Tyne. This gives the reservoir an average production of 20,000  MWh of electricity per year, a saving of 8,500 tonnes of carbon dioxide per year compared to fossil fuel based methods of generation. [12]

Notes

Citations

  1. ↑ "Parliamentary Business". Hansard. 30 July 2009.
  2. ↑ "Kielder Water". British Lakes. Archived from the original on 15 January 2017. Retrieved 1 December 2017.
  3. 1 2 3 Mawer, Allen (1920). The Place-names of Northumberland and Durham. Cambridge: CUP Archive. p.  92.
  4. 1 2 3 James, Alan. "A Guide to the Place-Name Evidence" (PDF). SPNS – The Brittonic Language in the Old North. Archived from the original (PDF) on 13 August 2017. Retrieved 25 November 2018.
  5. ↑ "The place-names of England and Wales" . Retrieved 17 July 2017.
  6. ↑ Coats, D.J. and Ruffle, N.J. (1982) "The Kielder Water Scheme" Proc. Instn. Civ. Engrs, Part 1, Vol 72, May, 135-147.
  7. ↑ Coats, D.J. and Rocke, G. (1982) "The Kielder Headworks" Proc. Instn. Civ. Engrs, Part 1, Vol 72, May, 149-176.
  8. ↑ Coats, D.J., Berry, N.S.M.B. and Banks, D.J. (1982) "The Kielder Transfer Works" Proc. Instn. Civ. Engrs, Part 1, Vol 72, May, 177-208.
  9. ↑ "North Tyne – Kielder Reservoir". Bridges on the Tyne. Retrieved 26 February 2013.
  10. ↑ "Structure Images of the North East". University of Newcastle upon Tyne. Archived from the original on 13 June 2011.
  11. ↑ "KIELDER WATER RESERVOIR PROJECT (Hansard, 20 March 1973)". api.parliament.uk. Retrieved 25 June 2021.
  12. ↑ "Water power on a large scale" (PDF). Tynedale Renewable Energy Trail. p. 1. Archived from the original (PDF) on 7 November 2015. Retrieved 7 November 2015.

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References

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