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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:
 | 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. |  | 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. |  | 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. |  | 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. |  | 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. |
 | 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. |  | Double
Return Program
Reduce your company's average peak electricity demand by
5-10% over last year (between 7 a.m. and 7 p.m. on business days) and we'll pay
you double the amount of what you save in delivery charges! All transmission-connected
Hydro One customers are automatically enrolled in the program. Learn
more. | 
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our archived customer bulletins and conference speeches below: |
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Customer Notification Bulletins, Briefings, Connection Agreements and more!
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