Power Grid England

I need to know more about National Grid (Great Britain), for that will you please help me also?

As per your concern I will let you know about National Grid (Great Britain) so that you remember easily.

The National Grid (Great Britain) is the high-voltage electric power transmission network that connecting power stations and major substations and ensuring that electricity generated anywhere in England, Scotland and Wales.

Grid description
The following figures are taken from the 2005 Seven Year Statement (SYS)
Maximum demand (2005/6): 63 GW (approx.) (81.39% of capacity)

Annual electrical energy used in the UK is around 360 TWh (1.3 EJ)

Capacity (2005/6): 79.9 GW (or 80 GW per the 2008 Seven Year Statement)

Number of large power stations connected to it: 181

Length of 400 kV grid: 11,500 km (circuit)

Length of 275 kV grid: 9,800 km (circuit)

Length of 132 kV (or lower) grid; 5,250 km (circuit)

Total generating capacity is supplied roughly equally by nuclear, coal fired and gas fired power stations. Annual energy used in the UK is around 360 TWh (1.3 EJ), with an average load factor of 72% (i.e. 3.6×1011/(8,760 × 57×106).

Losses
Joule heating in cables: 857.8 MW

Fixed losses: 266 MW (consists of corona and iron loss; can be 100 MW higher in adverse weather)

Substation transformer heating losses: 142.4 MW

Generator transformer heating losses: 157.3 MW

Total losses: 1,423.5 MW (2.29% of peak demand)

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Answered By StudyChaCha Member