Country
United Kingdom

The United Kingdom of Great Britain and Northern Ireland (commonly known as the United Kingdom, the UK, or Britain) is a sovereign state located off the northwestern coast of continental Europe. It is an island nation, spanning an archipelago including Great Britain, the northeastern part of the island of Ireland, and many smaller islands. Northern Ireland is the only part of the UK with a land border[note 8] with another sovereign state, sharing it with the Republic of Ireland. Apart from this land border, the UK is surrounded by the Atlantic Ocean, the North Sea, the English Channel, and the Irish Sea.

The United Kingdom is a constitutional monarchy and unitary state. It is a country consisting of four countries: England, Northern Ireland, Scotland, and Wales. It is governed by a parliamentary system with its seat of government in the capital city of London. There are three devolved national administrations of varying powers in Belfast, Cardiff and Edinburgh, the capitals of Northern Ireland, Wales and Scotland respectively. The UK has three Crown Dependencies and fourteen overseas territories that are not constitutionally part of the UK. These territories are remnants of the British Empire, which at its height in 1922 encompassed almost a quarter of the world's land surface, the largest empire in history. As a result, British influence can still be observed in the language, culture and legal systems of many of its former colonies.

 
Market Size
Capital London
Area 243.61 Km2
Population 62000000 
GDP 2139 Billions €
Consumption n/a
Peak load 60.000 GW

National Grid
 
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National Grid (LSE: NG.; NYSE:NGG) is an international electricity and gas company and one of the largest investor-owned energy companies in the world. We play a vital role in delivering gas and electricity to many millions of people across Great Britain and northeastern US in an efficient, reliable and safe manner.

We are committed to safeguarding our global environment for future generations and providing all our customers with the highest standards of service through investment in our networks and through our talented, diverse workforce.

SONI
 
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The System Operator for Northern Ireland (SONI Ltd) is a wholly owned subsidiary of EirGrid plc.

SONI Ltd is the licensed TSO and market operator in Northern Ireland and is regulated by the Utility Regulator for Northern Ireland (URegNI).

In it's role as TSO, SONI Ltd has the responsibility of ensuring the safe, secure and economic operation of the high voltage electricity system in Northern Ireland. However, it should be noted that the transmission assets in Northern Ireland are currently owned and maintained by Northern Ireland Electricity (NIE).

The Single Electricity Market Operator (SEMO) is a joint venture between SONI and EirGrid and is responsible for running the Single Electricity Market (SEM) which is a single market for the wholesale trading of electricity on the island of Ireland across the two jurisdictions of Northern Ireland and Republic of Ireland. SEMO has offices in both Belfast and Dublin and has been established with a distinct all-Island identity, providing non-discriminatory trading access to all market participants on the island.