IESO Statement on the Auditor General’s 2017 Annual Report

ieso

December 6, 2017

Maintaining the reliability of Ontario’s electricity system is at the core of what the IESO does. This means ensuring Ontario residents and businesses have power whenever they need it.

The Auditor General’s December 6, 2017 report focuses on two market functions that are critical to accomplishing this task: the Real-Time Generator Cost Guarantee (RT-GCG) program and Congestion Management Settlement Credits (CMSC).

Without these market functions, the reliability of Ontario’s electricity system would be reduced and North American power system reliability standards would not be met—standards put in place following the 2003 blackout.

The IESO’s Market Assessment and Compliance Division and the Ontario Energy Board’s Market Surveillance Panel (MSP) have identified inefficiencies with these programs over the years, and the IESO has taken action to address them.

Enhancements to the RT-GCG program include pre-defined costs and stricter rules that have increased transparency and efficiency. Annual program costs were $23 million in 2016, down significantly from $61 million in 2014. Ineligible costs claimed under the previous version of the program were identified and the majority were recovered, and one generator responsible for two-thirds of them was fined an additional $10 million.

Regarding CMSC, the IESO has updated more than a dozen market rules to make it more efficient. As the MSP noted in a December 2016 report, “Many of the most problematic issues associated with the CMSC regime have been brought to an end – in large measure as a result of the Panel having identified these situations, and the IESO having acted to eliminate them.”

More information about these programs is available in the IESO’s backgrounders for the RT-GCG program and CMSC.

Ontario is in a stable supply situation as a result of investments made over the last decade, making now the right time to make more fundamental changes to the electricity market. These changes are being made through the IESO’s Market Renewal Program, which will result in a more efficient, competitive, and transparent electricity market.  The OEB’s Market Surveillance Panel is supportive and participating in the market renewal initiative.

Market Renewal is estimated to result in up to $5.2 billion in savings over 10 years, the majority of which will be realized by ratepayers. This will include replacing the RT-GCG program with a more efficient and transparent mechanism and eliminating CMSC. Read more about market renewal.

On Cybersecurity, the Auditor General says the IESO is adhering to North American standards but suggests it could be doing more.  The IESO is already in the process of hiring a new Chief Information Officer with an increased focus on cybersecurity. The creation of a senior-level position for cybersecurity with formal reporting to both IESO executives and our Board is also being considered.

http://www.ieso.ca/en/corporate-ieso/media/news-releases/2017/12/ieso-statement-on-the-auditor-general-2017-annual-report

Related Articles


Latest Articles

  • Lever Connectors and Twist-Ons: How to Decide Which is Right for the Job

    Lever Connectors and Twist-Ons: How to Decide Which is Right for the Job

    There are many different types of wire connectors, and sometimes it can be hard for electricians to determine which one is best to use. Read More…

  • Winnipeg Information Bulletin: Low-Risk Voice, Data, Video & Security System Installations

    Winnipeg Information Bulletin: Low-Risk Voice, Data, Video & Security System Installations

    September 17, 2026 Certain types of installations may qualify for a low-risk voice, data, video (VDV) and security system electrical permit. For information related to regular VDV/security system installations, see winnipeg.ca/vdvsystems. Applications must be submitted through Permits Online. Electrical permits and inspections are needed for certain installations of security and similar alarm systems. This makes… Read More…

  • What Type of Outdoor Light Do I Need for My Application?

    What Type of Outdoor Light Do I Need for My Application?

    September 17, 2026 By Stanpro The right outdoor light starts with the space you need to illuminate and how that space is used. For commercial projects, parking lots and large exterior areas point toward area lights; entrances and building perimeters toward wall-mounted or security lighting; signs, facades and targeted areas toward flood lights; pathways toward… Read More…

  • Alberta Employers and Tradespeople Share their Perspectives

    Alberta Employers and Tradespeople Share their Perspectives

    September 16, 2026 In Alberta’s skilled trades labour market employers and tradespeople are facing growing pressure from tariffs, rising costs, hiring challenges and labour mobility barriers. CAF-FCA’s new report, Hiring, Mobility and Needed Supports: Alberta Employers and Tradespeople Share Their Perspectives, takes a closer look at what’s happening on the ground. Based on surveys of… Read More…


Changing Scene

  • Government of Canada Introduces Legislation to Transform how Canada Builds

    Government of Canada Introduces Legislation to Transform how Canada Builds

    October 2, 2026 The world is changing rapidly. In response, Canada is focused on what we can control: building a stronger, more independent, and more sustainable economy. We are leveraging our strengths and moving with speed to open new markets, strengthen supply chains, accelerate projects, and unlock our natural resources. As we build, we are… Read More…

  • Ontario Awards Construction Contract for New Little Current Swing Bridge

    Ontario Awards Construction Contract for New Little Current Swing Bridge

    October 2, 2026 The Ontario government has named a construction manager for the Little Current Swing Bridge replacement project. The new bridge will replace the existing bridge on Highway 6 connecting Manitoulin Island to the mainland, providing reliable, year-round access to the provincial highway network and making it easier for workers and families to connect… Read More…

  • Construction Starting on new Pitt Meadows Secondary School in BC

    Construction Starting on new Pitt Meadows Secondary School in BC

    October 2, 2026 Construction is beginning on the new Pitt Meadows Secondary school, which will provide students with a safer and more modern environment to learn. “Pitt Meadows is a vibrant community with a bright future and I’m proud that the local high school will soon better reflect the community it serves,” said Lisa Beare,… Read More…

  • Major Construction Underway at Woodbine GO Station

    Major Construction Underway at Woodbine GO Station

    October 2, 2026 Major construction is underway at Woodbine GO Station, marking another significant milestone in the Ontario government’s plan to provide two-way, all-day service across core segments of the GO Transit network. Crews are now building station platforms that will connect thousands of daily riders to the Kitchener GO Line, Union-Pearson (UP) Express and… Read More…