Energy Storage Procurement at the IESO 

The procurement of energy storage resources began at the IESO in 2012 through the Alternate Technologies for Regulation (ATR) procurement, in which six megawatts of regulation service was procured from two storage facilities. The energy storage technologies that were brought online provided learning opportunities for both the IESO and their providers.

In 2014, a competitive energy storage procurement framework was initiated that included two consecutive phases for a total capacity target of 50 megawatts. The two-phase pilot procurement was in support of the province’s efforts to better understand the integration of energy storage into Ontario’s electricity system and market. The results of this procurement can be found here:

Phase I

Through Phase I of the energy storage procurement (2014), 11 facilities are or will soon be providing a total of 32.8 megawatts of either regulation service or reactive support and voltage control (RSVC) service to support Ontario’s electricity system. These facilities are listed below:

Supplier

Technology

Capacity (MW)

Ellwood Energy Storage LP

Battery

4.0

Sault Ste. Marie Energy Storage LP

Battery

7.0

Powin Energy Ontario Storage II LP

Battery

2.0

Powin Energy Ontario Storage II LP

Battery

2.4

Powin Energy Ontario Storage II LP

Battery

2.0

Powin Energy Ontario Storage II LP

Battery

2.4

Hecate Energy Ontario Storage VII LP

Battery

2.0

Maple Leaf Basin Storage LP

Battery

2.0

Maple Leaf Basin Storage LP

Battery

2.0

Guelph Energy Storage LP

Flywheel

5.0

2562961 Ontario LTD

Hydrogen-Gas

2.0

*Data as of January 17, 2019

 

See the media release and backgrounder for Phase I.

Phase II

Through Phase II of the energy storage procurement (2015), 9 facilities are or will be providing a total of 16.75 megawatts of energy storage capacity to the power grid. These facilities are listed below:

Supplier

Technology

Capacity (MW)

Ameresco Newmarket Energy Storage Inc.

Battery – Solid

2.0

Ameresco Newmarket Energy Storage Inc.

Battery – Solid

2.0

Oldcastle Storage LP

Battery – Flow

2.0

Leamington Storage LP

Battery – Flow

1.0

Lindsay Storage LP

Battery – Flow

2.0

Elmira Energy Storage, LP

Battery – Solid

2.0

Parry Energy Storage, LP

Battery – Solid

2.0

Baseload Power Corp.

Battery - Flow

2.0

NRStor Goderich CAES L.P.

Compressed Air

1.75

*Data as of January 17, 2019

 

See the ministry communications and backgrounder for Phase II.

See the communications and program documents for Phase II.


Energy Storage Report

The IESO’s 2016 technical report on energy storage focuses on the reliability needs of the Ontario power system and the potential for energy storage technologies to address those needs.