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Home > Customers
> LDCs & Transmission-connected
Hydro One is proud to supply electricity to more than 90 large transmission-connected
industrial customers and 80 Local Distribution Companies (LDCs) across the
province. Our Transmission-connected customers include pulp and paper mills,
refineries, auto manufacturers, mining and steel companies. All of these
customers have significant power requirements.
The following programs will assist LDCs and Transmission-connected customers
manage their electricity supply connections with Hydro One. These have
been developed in accordance with various regulations and Market Rules
established in Ontario and the obligations they place on the participants.
See below for a brief summary and links to more information about each
program:
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Wholesale Revenue Metering (Meter Exit Program)
All customers connected to the IESO control grid are responsible for
their wholesale revenue metering. Each customer-owned metering installation
must comply with the requirements and standards set out in Chapter
6 of the IESO Market Rules. Learn
more. |
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Feeder Settings Program (PCMIS)
Hydro One has developed a program and software system to improve the
management of feeder settings for Hydro One-owned Transformer Stations
and breakers. The program clarifies the accountability of the Local
Distribution Companies (LDCs) and the Transmitter (Hydro One). Learn
more. |
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Power Quality Incident Reporting
Customer equipment can adversely affect the quality of electrical
supply to another customer. Large motors, arc furnaces and a large
number of non-linear loads can all contribute to Power Quality (PQ)
disturbances. Hydro One responds to our customers' PQ issues through
the Power
Quality Inquiry Response Process. Learn
more. |
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Unaccompanied Station Access Process
To ensure the utmost in public safety and security, Hydro One
has developed a process to assist Transmission-connected LDCs with
unaccompanied access to their equipment inside a Hydro One Transformer
Station. Learn
more. |
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LDC Work Program
Our LDC Work program manages the scheduling and implementation
of requests for new or modified joint use of poles, long term load
transfers, additional capacity, tie lines, power quality, new metering
locations and reliability concerns. Learn
more. |
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Outage Planning for Transmission-connected Customers
Hydro One as a Transmitter has a responsibility to maintain and
repair equipment to ensure the safe and reliable delivery of electricity
to our customers. Scheduling outages is critical to the performance
of the Transmission system. Learn
more. |
 Read
our archived customer bulletins and conference speeches below:
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