🌋 Planetary event

Ferranti's Deptford power station and 10 kV transmission

Central de Deptford de Ferranti y transporte a 10 kV

Date
1889-1891 · confidence high
Place
Deptford, London, United Kingdom
Credited to
Sebastian Ziani de Ferranti
Field
Matter & energy

What was discovered

Ferranti designed a station on the Thames that sent alternating current at 10,000 V through high-voltage cables to central London, 11 km away. It was the first large-scale high-voltage AC system with transformers at the point of use.

What it led to

  • large-scale high-voltage power station in Britain
  • paper-insulated cables
  • standardisation of grid voltage
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Sources✓ verified 2026-11-04