Three Gorges Dam
EnergyThe world's largest hydropower station by installed capacity, at 22.5 GW, and the main flood-control structure on the Yangtze.
Saint Helena is a British Overseas Territory consisting of Saint Helena and Ascension Islands, and the island group of Tristan da Cunha.
The National Infrastructure Index maps the physical assets national life runs on — power stations and grids, water systems, ports, railways and airports, data networks, payment systems and launch sites. Each asset is placed in a Strategic Infrastructure capability group, so it can be read against the ratings in the National Capability index above.
Assets are chosen for how much of the economy and state depends on them and how hard they would be to replace. Each card records what the asset is, the category it belongs to, what it does and where it is.
Example assets. These twenty cards are modelled on China's most critical infrastructure and show on every nation page until each nation's own assets are mapped.
The world's largest hydropower station by installed capacity, at 22.5 GW, and the main flood-control structure on the Yangtze.
A 16 GW dam on the Jinsha River, built around sixteen 1 GW turbines, the largest single units in service.
A ±1,100 kV direct-current line carrying 12 GW more than 3,000 km from Xinjiang's power bases to the eastern grid.
China's first large commercial nuclear plant, in service since 1994, with much of its output sold to Hong Kong.
A canal carrying Yangtze basin water more than 1,400 km north from the Danjiangkou Reservoir to Beijing and Tianjin.
The 1,318 km trunk line between the two largest cities, opened in 2011 and one of the busiest high-speed routes in the world.
The world's busiest container port since 2010, including the automated Yangshan deep-water terminals.
The world's largest port by cargo tonnage, handling iron ore, crude oil and coal for the eastern industrial belt.
The capital's second international hub, opened in 2019 around one of the largest single terminal buildings in the world.
A 55 km bridge and undersea tunnel system linking the western and eastern shores of the Pearl River Delta, opened in 2018.
The 1,956 km line from Xining to Lhasa, crossing the Tanggula Pass at 5,072 m, the highest railway in the world.
One of eight national data centre hubs under the East Data, West Computing programme, hosting major cloud providers.
A 2,000 km quantum key distribution trunk line through Jinan and Hefei, completed in 2017 for secure government and bank links.
CIPS clears and settles cross-border payments in renminbi, launched in 2015 to extend the currency's international reach.
The coastal launch site for Long March 5 heavy-lift rockets, used for the Tiangong station modules and lunar and Mars missions.
China's first launch site, founded in 1958 in the Gobi Desert, and the base for every crewed Shenzhou mission.
The national satellite navigation system, providing global positioning and timing since 2020 from its Beijing control segment.
The world's largest known rare-earth deposit and the core of China's rare-earth mining and refining supply chain.
A weir and channel system built around 256 BC that still irrigates much of the Chengdu Plain's farmland.
China's leading maker of 3D NAND flash memory, central to the drive for a domestic semiconductor supply.
The National Development Index tracks the events that move a nation's capability — policy decisions, technological milestones, economic turns and external shocks — and places each one on the record with the date it happened and what followed from it. It is the narrative counterpart to the indices: where a rating says where Saint Helena, Ascension, and Tristan da Cunha stands, the index says how it arrived there.
Recent developments cover the current cycle, close enough that their consequences are still unfolding. Historical developments are the inflection points behind the present position — the decisions and events a reader needs in order to read the ratings above in context.
Saint Helena, Ascension Island and Tristan da Cunha were separately discovered by several Portuguese navigators in the first years of the sixteenth century. The Portuguese found Saint Helena uninhabited and well watered, and introduced livestock, fruit trees and vegetables, building a chapel and one or two houses. Though no permanent settlement was formed, the island became crucially important as a provisioning and rendezvous point for homebound voyages from Asia.
The English privateer Francis Drake very probably sighted Saint Helena on the final leg of his voyage around the world. Further English visits followed, and once the island's position became more widely known English warships lay in wait there to attack Portuguese carracks returning from India.
Developing their Far East trade, the Dutch began frequenting Saint Helena and formally claimed it in 1633. They never established a settlement, and by 1651 had largely abandoned the island in favour of their colony at the Cape of Good Hope, leaving the field open to English colonisation.
The English East India Company received authority to govern the island, and the following year decided to fortify it and colonise it with planters. This marked the beginning of continuous English administration of Saint Helena.
The first governor's arrival began permanent settlement; a fort was completed and a number of houses built. St Helena dates from this year its claim to be Britain's second oldest remaining colony after Bermuda.
After the Restoration of the British monarchy the Company was confirmed in exclusive control of Saint Helena. The fort was renamed James Fort and the town Jamestown in honour of the Duke of York, later King James II.
Napoleon was held on Saint Helena from October 1815 until his death on 5 May 1821, making the island internationally famous. The exile fixed Saint Helena's place in European strategic and imperial history.
Ascension was garrisoned on 22 October 1815, shortly after Napoleon's arrival on Saint Helena. As the Age of Sail ended, its awkward position in the equatorial doldrums mattered less than its value as a centrally placed naval coaling station.
Tristan da Cunha was annexed on 14 August 1816 at the settlement of the Napoleonic Wars, for strategic reasons similar to those behind the Ascension garrison. Shortly before, the group had briefly been inhabited by a private American expedition that called it the Islands of Refreshment.
A dedicated copper halfpenny was minted for use on Saint Helena. It marked an early step towards a distinct local currency alongside sterling.
Under the Government of India Act 1833, administration of Saint Helena passed from the East India Company to the Crown in 1834, making the island a British crown colony under direct British governmental control rather than chartered company rule. The island, administered by the East India Company from 1659 and famous as Napoleon's place of exile from 1815 to 1821, later had Ascension and Tristan da Cunha attached as dependencies.
On 12 September 1922 letters patent attached Ascension to Saint Helena, beginning the political union of the scattered South Atlantic colonies. It created the administrative structure that would last until 2009.
On 12 January 1938 the lightly populated Tristan da Cunha group followed Ascension in becoming a dependency of Saint Helena. The three island groups then shared a single constitutional relationship for over seventy years.
On 14 October 2017 the new airport handled its first scheduled commercial service, ending the island's reliance on sea access. A 118-metre permanent wharf at Rupert's Bay was built as part of the same airport project for cargo and passenger landings.
Potholes on the runway of the military airfield led in April 2017 to the cancellation of all but essential personnel and supply flights, including medical evacuations. The airfield is jointly operated by the United Kingdom and the United States and also hosts one of only four GPS satellite ground antennas.
The flag of Ascension Island was adopted on 11 May 2013, having previously used the Union Flag. It followed the constitutional elevation of the island to equal status within the territory.
From 2013 telephone numbers became five digits, with fixed lines beginning with 2 and mobiles with 5 or 6. Ascension made a comparable change in 2015.
The St Helena, Ascension and Tristan da Cunha Constitution Order 2009 came into effect on 1 September 2009, elevating Ascension and Tristan da Cunha from dependencies to equal constituent parts under the Crown. The territory's name changed from Saint Helena and Dependencies to Saint Helena, Ascension and Tristan da Cunha.
Britain asked the UN Commission on the Limits of the Continental Shelf to extend Ascension Island's shelf limit beyond 200 nautical miles. In 2010 the Commission recommended against extension on the basis of scientific surveys, leaving the standard limit in place.
From 2006 Tristan da Cunha was brought into the +290 telephone code used by Saint Helena, while Ascension retained a separate code, +247. Improved telecommunications integration linked the remote settlement more closely to the wider territory.
On 20 October 2002 the governor proclaimed a distinct flag for Tristan da Cunha under a Royal Warrant granted by Queen Elizabeth II. It gave the southern group its own official emblem for the first time.
The flag of Saint Helena was adopted on 4 October 1984 and was updated in 2018 to show a more realistic wirebird. It served as the official flag in Tristan da Cunha as well until 2002.
Local coinage was introduced in 1984, following the banknotes issued from 1976. It completed the establishment of a separate island currency at par with sterling.
Having used United Kingdom sterling until 1976, the territory started issuing local notes pegged to sterling. This gave Saint Helena a distinct monetary identity while retaining currency stability.
During the Battle of the Atlantic and the subsequent U-boat campaign, both islands hosted patrolling anti-commerce-raider and anti-submarine forces against Axis naval units. Long-range flying boats were used first, and air strips were later built to support land-based aircraft complementing PBY Catalina patrol planes, permanently transforming the islands' infrastructure.
Saint Helena is a British Overseas Territory consisting of Saint Helena and Ascension Islands, and the island group of Tristan da Cunha.
none (overseas territory of the UK)
Birthday of Queen ELIZABETH II, second Saturday in June (1926)
islands in the South Atlantic Ocean, about midway between South America and Africa; Ascension Island lies 1,300 km (800 mi) northwest of Saint Helena; Tristan da Cunha lies 4,300 km (2,700 mi) southwest of Saint Helena
Africa
slightly more than twice the size of Washington, DC
0 km
the islands of this group result from volcanic activity associated with the Atlantic Mid-Ocean Ridge
fish, lobster
NA
active volcanism on Tristan da Cunha
Saint Helena harbors at least 40 species of plants unknown elsewhere in the world; Ascension is a breeding ground for sea turtles and sooty terns; Queen Mary's Peak on Tristan da Cunha is the highest island mountain in the South Atlantic and a prominent landmark on the sea lanes around southern Africa
NA
Capability-group ratings for Critical Technology are part of the GINC National Capability Framework rather than the country factbook. They are published in the National Capability index, and the per-capability detail lives on the capability pages.
1 (2013)
there is no air connection to Saint Helena or Tristan da Cunha; construction on the new international airport for Saint Helena began in 2012 with an estimated completion date of late 2015 or early 2016; the new airport will have a runway of 1,550 m capable of handling B737/A319 size aircraft
900 (2009)
.sh; note - Ascension Island assigned .ac
8 million kWh (2010 est.)
7.44 million kWh (2010 est.)
0 kWh (2012 est.)
0 kWh (2012 est.)
5,000 kW (2010 est.)
100% of total installed capacity (2010 est.)
0% of total installed capacity (2010 est.)
0% of total installed capacity (2010 est.)
0% of total installed capacity (2010 est.)
0 bbl/day (2012 est.)
0 bbl/day (2010 est.)
0 bbl/day (2010 est.)
0 bbl (1 January 2013 est.)
0 bbl/day (2010 est.)
100 bbl/day (2011 est.)
0 bbl/day (2010 est.)
63 bbl/day (2010 est.)
0 cu m (2011 est.)
0 cu m (2010 est.)
0 cu m (2011 est.)
0 cu m (2011 est.)
0 cu m (1 January 2013 est.)
9,100 Mt (2011 est.)
3,000 (2012)
6,729 (2012)
South Africa maintains a meteorological station on Gough Island
defense is the responsibility of the UK
7,776
0.27% (2014 est.)
10.03 births/1,000 population (2014 est.)
7.33 deaths/1,000 population (2014 est.)
1.58 children born/woman (2014 est.)
0 migrant(s)/1,000 population (2014 est.)
JAMESTOWN (capital) 1,000 (2011)
NA%
NA
NA
NA
none
NA
3 administrative areas; Ascension, Saint Helena, Tristan da Cunha
several previous; latest effective 1 September 2009 (The St. Helena, Ascension and Tristan da Cunha Constitution Order 2009) (2013)
18 years of age
English common law and local statutes
unicameral Legislative Council (17 seats, including a speaker and deputy speaker, 12 elected, and three ex-officio members; members elected by popular vote to serve four-year terms)
overseas territory of the UK
none
blue with the flag of the UK in the upper hoist-side quadrant and the Saint Helenian shield centered on the outer half of the flag; the upper third of the shield depicts a white plover (wire bird) on a yellow field; the remainder of the shield depicts a rocky coastline on the left, offshore is a three-masted sailing ship with sails furled but flying an English flag
English
Protestant (Anglican (majority), Baptist, Seventh-Day Adventist), Roman Catholic
African descent 50%, white 25%, Chinese 25%
Saint Helena plover (bird)
St. Helena has no local TV station; 2 local radio stations, one of which is relayed to Ascension Island; satellite TV stations rebroadcast terrestrially; Ascension Island has no local TV station but has 1 local radio station and receives relays of broadcasts from 1 radio station on St. Helena; broadcasts from the British Forces Broadcasting Service (BFBS) are available, as well as TV services for the US military; Tristan da Cunha has 1 local radio station and receives BFBS TV and radio broadcasts (2007)
UPU
none (overseas territory of the UK)
none (overseas territory of the UK)
4% (2012 est.)
$NA
Saint Helenian pounds (SHP) per US dollar -//0.6307 (2014)//0.6391 (2013)//0.6472 (2010)//0.6175 (2009)//0.5302 (2008)
$NA
construction, crafts (furniture, lacework, fancy woodwork), fishing, collectible postage stamps
NA%
2,486 (1998 est.)
14% (1998 est.)
The economy depends largely on financial assistance from the UK, which amounted to about $27 million in FY06/07 or more than twice the level of annual budgetary revenues. The local population earns income from fishing, raising livestock, and sales of handicrafts. Because there are few jobs, 25% of the work force has left to seek employment on Ascension Island, on the Falklands, and in the UK.
$31.1 million (FY09/10 est.)
NA%
$7,800 (FY09/10 est.)
coffee, corn, potatoes, vegetables; fish, lobster; livestock; timber
1 April - 31 March
$19 million (2004 est.)
fish (frozen, canned, and salt-dried skipjack, tuna), coffee, handicrafts
$20.53 million (2010 est.)
food, beverages, tobacco, fuel oils, animal feed, building materials, motor vehicles and parts, machinery and parts