Metering Service Providers

To register a metering installation, please contact a metering service provider (MSP). The following list of registered MSPs are the only organizations authorized to undertake the registration of metering installations for operation in the wholesale electricity market.

Metering Service Providers must satisfy the requirements in the market rules, associated manuals, and procedures:

List of registered MSPs



Name of Organization


Name of Contact

Phone No. / Fax No.


CRU Solutions Inc.

180 Whiting Street
Ingersoll, ON
N5C 3B5

Jurgen van Dijken

T: 519-485-6038
Ext 405
F: N/A


Meter Services Peterborough Inc.

2245 Keene Road
P.O. Box 4125, Station Main
Peterborough, ON
K9J 6Z5

Terry McConnell

T: 705-748-9301
Ext 1279
F: 705-743-5988


Rodan Energy Solutions Inc.

165 Matheson Blvd. East, Suite 6
Mississauga, ON
L4Z 3K2

Gary Nunes

T: 905-625-9900
Ext 231
F: 905-625-4307


Toronto Hydro-Electric System Ltd.

500 Commissioners Street
Toronto, ON
M4M 1B4

Robert Cappadocia

T: 416-542-3478
F: N/A


Hydro One Networks Inc. (MSP)

255 Matheson Boulevard West
Mississauga, ON
L5R 3G3

Peter Mitskos

T: 905-755-3808
F: 905-755-3803


Hydro Ottawa Limited (MSP)

3025 Albion Road N
P.O. Box 8700
Ottawa, ON
K1G 3S4

Steve White

T: 613-738-5499
Ext 147
F: 613-738-5499
Ext 7457


Alectra Utilities Corporation - Horizon Utilities Corporation

55 John St. North
Hamilton, ON
L8R 3M8

Rob Henschel

T: 905-317-4597
F: 905-522-8373


Waterloo North Hydro Inc. (MSP)

526 Country Squire Road
P.O. Box 640
Waterloo, ON
N2J 4A3

Herbert Haller

T: 519-888-5568
F: 519-885-4524


Enwin Utilities Ltd.

4545 Rhodes Drive
Windsor, ON
N9A 5T7

Mark Pearce

T: 519-251-7300
Ext 238
F: 519-251-7320


PowerStream Inc. (MSP)

161 Cityview Boulevard
Vaughan, ON
L4H 0A9

Eddie Augusto

T: 905-532-4433
F: 905-532-4562


Oshawa PUC Services Inc.

100 Simcoe Street South
Oshawa, ON
L1H 7M7

Roger Ersil

T: 905-723-4626
Ext 5242
F: 905-723-3248


Thunder Bay Hydro Utility Services Inc.

37 Front Street
Thunder Bay, ON
P7A 8B2

James Mann

T: 807-343-1037
F: 807-343-1192


Great Lakes Power Limited (MSP)

243 Industrial Park Crescent
Sault Ste. Marie, ON
P6B 5P3

Jim Deluzio

T: 705-256-4500
F: 705-256-4557


N-Sci Technologies Inc.

633 Albert Street East
Sault Ste. Marie, ON
P6A 2K5

Robert Reid

T: 705-941-1199
F: 705-253-4350


Horizon Energy Solutions Inc.

55 John St. North
Hamilton, ON
L8R 3M8

Rob Henschel

T: 905-317-4597
F: 905-522-8373


Essex Power Services Corporation

2199 Blackacre Drive, Suite 2
Oldcastle, ON
N0R 1L0

Sheldon Tracey

T: 519-946-2000
Ext 252
F: 1-866-291-5317


Bluewater Power Distribution Corporation

855 Confederation St.
Sarnia, ON
N7T 7L6

Mark Vanderheide

T: 519-337-8201
Ext 2234
F: 519-332-3878


Inclusion of a metering service provider on this list confirms only that the metering service provider has been determined, in accordance with the registration process described in appropriate market rules and market manuals. IESO otherwise makes no, and expressly disclaims any, representation or warranty as to the character, financial integrity, relative quality or other attribute of a metering service provider included on this list.