About London Hydro

London Hydro's Building

London Hydro is a Local Distribution Company that services the City of London, Ontario, Canada. With a peak load of 694 megawatts, we deliver a safe and reliable supply of electricity to over 168,000 customers from the residential, institutional, commercial and industrial sectors, through over 3,100 kilometres of overhead and underground cables, spanning 420 square kilometres of service territory. As a wholly-owned subsidiary company, we operate much like a private entity under the Ontario Business Corporations Act, paying an annual dividend to our sole shareholder, the City of London. In essence, all Londoners own London Hydro.

Image of a downtown street with car parked along the road

Vision 2030 - London Hydro's Five-Year Strategic Plan

Read the Strategic Plan
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Facts & Figures
  • Total SCADA-connected devices - 508 (protection relays, communicating faulted circuit indicators, SCADA meters, RTUs).
  • We bill over 120,250 water customers.
  • Employs over 300 full-time permanent staff.
  • Our electricity assets are valued at $472,358,000.
  • We provide our shareholder, the City of London, with an annual 5% dividend.

  • We provide electrical connections to about 213,000 facilities.

     

  • SAIDI (average outage duration per customer for 2025, excluding major events and loss of supply): 58 minutes
  • SAIFI (average number of outages per customer for 2025, excluding major events and loss of supply): 1.31 interruptions per year
  • Overall reliability ranks in the top quartile in Ontario
  • Over 3,000 km of overhead and underground distribution lines
  • More than 16,000 transformers, including overhead, pad-mounted, and vault installations
  • 20 municipal substations, owned by London Hydro
  • 6 transformer stations, owned by Hydro One
  • 60 27.6 kV feeders
  • Approximately 32,000 poles
  • More than 1,000 manholes
  • Over 300 automated switches (including reclosers and switchgear)
  • Total system capacity peaks at approximately 850 MW
  • Peak load reaches 740 MW (excluding generation)
  • Approximately 30 MW of generation during peak demand (about 4%)
  • 525 generators connected to the system, of which 510 are renewable
  • 114 MW of total connected generation, with approximately 50% renewable
  • 168,000 total customers, including:
    • 152,000 residential customers
    • 13,000 small general service customers (<50 kW)
    • 1,500 medium general service customers (>50 kW and <5 MW)
    • 2 large service customers (>5 MW)