ST-19 Cancellation Notice

Nov 29, 2023

November 3rd, 2023


Long-Term Reliability Project Name: ST-19


PIN: 480450099

Facility: Battery Energy Storage Systems (BESS)

Nameplate Capacity: 120-megawatt/480-megawatt hour

Proponents Name: 1000234813 Ontario Inc.

Public Meeting #1: 6:00 pm on November 20th, 2023 – at Centennial Centre, Hall Community Centre (101 Centennial Drive, Gravenhurst, ON.)

Public Meeting #2: 6:00 pm on November 27th, 2023 – Online, Microsoft Teams (see below for link)…

IESO Procurement Background

After more than a decade of strong supply, Ontario is entering a period of emerging electricity system needs, driven by increasing demand, the retirement of the Pickering Nuclear Generating Station, the refurbishment of other nuclear generating units, and expiring supply contracts at other facilities.

To address these needs, the Long-Term Request for Proposals (LT1 RFP) is expected to competitively procure 2,518 MW of year-round effective capacity from dispatchable new build resources. These include new build storage facilities, registered or able to become registered in the IESO-administered markets, larger than 1 MW and which can deliver a continuous amount of electricity to a connection point on a distribution system or transmission system for at least four consecutive hours. The LT1 RFP Proposal Submission Deadline is December 12, 2023, prior to 3:00 P.M. (EPT).

Proponent Information

1000234813 Ontario Inc., operating as Solar Flow-Through Funds (SFF), is a group of limited partnerships with offices in Vancouver and Toronto. SFF has partnered with IPG Electric and two First Nations communities in Ontario to co-own the facility to participate in IESO’s long-term capacity procurement to ensure reliability in Ontario’s electricity grid. SFF develops facilities and technologies that contribute to the global reduction of greenhouse gases and use of fossil fuels. Currently, SFF’s portfolio consists of 70 operating solar projects in Ontario, totaling 29 MW DC.

The Proponent is a Qualified Applicant under the IESO procurement process. SFF has retained SolarBank Corp. (formerly known as Abundant Solar Energy Inc.), an experience renewable energy project developer, to prepare applications for the LT1 RFP, which are due on December 12th, 2023. If selected for the IESO contract in Q2 2024, permitting and development would commence in Q3 2024; and all protocols including but not limited to safety, environmental protection, site plan approval, and applicable visual screening will be followed. The projects are expected to be operational in 2026, and then operate for 22 years per LT1 Contract.


SolarBank is acting as an agent and developer for SFF. SolarBank is a Canadian renewable and clean energy project developer and asset operator. Since 2013, SolarBank has enabled the proliferation of renewable and clean energy contributing to reduce carbon emission goals through its development, engineering, and asset management services in Canada and the United States.

Project Information

Nameplate Capacity: 120-megawatt/480-megawatt hour

The proposed utility grid-connected battery energy storage systems (BESS) will be located at Legal Description: PCL 28086 SEC MUSKOKA; E 1/2 LT 6 CON A MORRISON; S/T LT19286; GRAVENHURST; THE DISTRICT MUNICIPALITY OF MUSKOKA, GPS Coordinates: 44.790181, -79.237088 (street address unavailable, please refer to site plan below for exact location). The system will be a 120-megawatt/480-megawatt hour battery energy storage system using lithium battery technology. The BESS is expected to occupy approximately 10 acres of land, including all required setbacks, spacing, utility-owned substation and customer-owned substation. BESS components include containerized units housing all necessary batteries, inverters, fire suppression and extinguishment, and HVAC systems. The height of the containers will be 2.9 meters, and 4.48 m at the highest point (inc. aux equipment). The height of the substation equipment at the highest point will be one lightening mast at approximately 30 meters height. The system will be independently connected to the Ontario electricity grid. The BESS will be charged by the local grid overnight when there is low electricity demand and will supply power to the grid at times of high demand, providing significant benefits to grid reliability. Please see below for the proposed site plan and an example image of a BESS. Please note, we are currently in the preliminary stage of engineering and site plan and technology may change pending detailed engineering, community engagement, and utility and municipal requirements.

Community Engagement Plan

As the project developer, SolarBank Corp. plans to engage the local community as part of the development process.

This plan includes the following:

  • Hosting a public meeting in an accessible location so that local residents can learn about the project, ask questions, raise any potential concerns, and get clarifications and answers.
  • Posting the Public meeting notice a minimum of 15 days in advance on the project website.
  • Notifying owners of property adjacent to the project site of the public meeting via e-mail, registered mail or courier minimum of 15 days in advance to the public meeting
  • Notifying the municipality of the public meeting via email, registered mail or courier.
  • Posting project information, site planning (a scale map), and public meeting minutes on the project website.
  • Providing contact information on project website for any questions that residents may have and will be responsive in a timely matter.

Public Meeting Details

As part of the project development process, community members are invited to attend public meetings. These meetings are intended to ensure that community members have the chance to inform about the project and ask any questions they may have.

Please see below for the two public meeting dates and locations:

Public Meeting #1:

6 pm, November 20th, 2023, at the Centennial Centre, 101 Centennial Drive, Gravenhurst, ON.

Public Meeting #2:

6 pm, November 27th, 2023, Online Meeting.

Microsoft Teams Link:…

For your convenience, please email if you wish to have the Microsoft Teams meeting invite emailed to you and ensure your access. We recommend this option.

Questions and Contacts

Please feel free to reach out to the contacts below if you have any questions regarding the procurement process, companies involved, and/or proposed projects.

Mila Simon – Project Coordinator – SolarBank

Genny Nugent - Executive Assistant – Solar Flow-Through Funds