About That Metrolinx Generator in Mount Dennis (Update 2)

Over some time there have been conflicting stories about the purpose of a backup power generation unit at the Mount Dennis maintenance facility on the Crosstown project. I have heard some rather wild statements from folks at Metrolinx that suggests they might be making things up based overheard water cooler chatter (not that offices tend to have water coolers these days, but it’s the idea that counts).

After the media scrum at last week’s board meeting produced more confusion, I sent in a set of questions for clarification. The boffins at Metrolinx are supposedly working on it. Yes, you. I know you read this site, so in case the memo hasn’t reached your desk, you might want to answer the following:

Regarding the backup generator at Mount Dennis:

I have heard stories both that its purpose is for on site emergency power and for traction power to the main line.

Another variant is that less than full power would be provided in an emergency at least to clear trains from tunnels.

It does not make sense to have one huge generator capable of providing traction power to the entire route. At a minimum, a parallel distribution system would be needed to connect to the standard substation-based feeds along the line.

Also, emergency power requirements are different for traction (750 VDC) and station power (110/220 VAC). Do you really expect me to believe you plan a totally independent power distribution network from Hydro?

Another cockeyed variant is to use the generator to offset peak power demands.

Please provide a detailed technical description of what this generator is expected to power and under what circumstances so that there is a single explanation of this project from Metrolinx.

I await a reply from Metrolinx that is coherent and credible.

Updated September 20, 2016 at 10:40 pm:

Metrolinx has provided the following information about their power generation proposal for Mount Dennis:

Metrolinx is working with Toronto Hydro to explore an alternative to the proposed natural gas powered back up facility near Mount Dennis Station.   An alternative would have to provide the same basic functional requirements as the proposed natural gas powered facility.  It would also be subject to any necessary approvals from the Province of Ontario and the City of Toronto. More info is coming in the near future I understand.

The gas-powered facility was proposed in order to provide the ability to maintain service when the power goes out and improve transit resilience, lower the cost of power by eliminating any contribution to peak power demand from the new system, and ensuring it does not contribute to the need for more transmission or generation infrastructure.

The proposal included:

  • a traditional Toronto Hydro electrical grid connection at two locations; and,
  • building an 18 Megawatt backup power facility – six generators – (with capacity to heat the MSF office spaces) in the northwest corner of the MSF site, known as the backup power facility.

CTS [the consortium building the Crosstown line] developed this proposal based on our RFP requirements whereby proponents were asked to design a system to achieve the power needs of the project, which included redundancy. The Energy Matters regime of the Project Agreement drove proponents to make the system as energy efficient as possible and to the extent possible limit peaks during the key hours of peak that challenge the grid. CTS is asked to forecast the following power supply needs for the system and commit to them for the 30-year Maintenance Period,

  • a) Discrete Power Use: the total amount of power needed;
  • b) Transmission Peak Use: the peak amount of power needed at any point in time (i.e. during rush hour); and
  • c) Global Adjustment Peak Use: the peak amount of power needed during the time when Toronto Hydro’s network is a peak capacity.

Each of the above peaks were assigned a $/MW or $/MW-h to determine the overall power costs of the project (that was unique to that proponent’s proposal). This cost was part of the proponents’ bid for the purposes of the financial evaluation. This regime exists to make bidders responsible for energy efficiency of their LRT system because Metrolinx will pay the energy bills for the 30 year Maintenance Period.

The proposal from CTS to responded with a fully capable 18MW power facility with the ability to completely eliminate contribution to peak period on the grid. As a result of the proposal, CTS was able to reduce their evaluation costs for the Global Adjustment Peak Use and their Transmission Peak Use.

The final power supply scenario provided for both a traditional connection to the Toronto Hydro network as well as the self-generating power facility. CTS’ obligations were to provide the power supply and HMQE’s obligations were to determine which power supply to use, i.e., either the backup power facility or the connection to the Toronto Hydro network. There are rules associated with changing of the power supply. CTS also committed to making one of the power generation units a co-generating unit (produces power and captures heat by-product). [Email from Anne Marie Aikins, Senior Manager, Media Relations, Communications & Public Affairs, Metrolinx]

This description begs a few questions:

  • If Toronto Hydro’s capacity is strained, how are we powering new facilities such as the TYSSE and proposed SSE? Does the TTC have to design for an alternative, power self-generation and transmission capability?
  • How does this claim square with statements made during the GO Transit electrification study that at the provincial level, spare power for RER was not an issue at all?
  • What additional capacity will be required to power the extensions to Pearson Airport and UTSC, and can this reasonably be sited at one location, Mount Dennis?

Updated September 22, 2016 at 8:20 am:

The acronym used above “HMQE” refers to “Her Majesty the Queen’s Entity”, a short form for the combined Metrolinx and Infrastructure Ontario Entity.

The primary purpose of the generator is supposedly for “Bulk Power Disruptions”, that is to say an outage from the provincial supplier, Hydro One. There have only been three such outages since (and including) the major blackout of August 2003. However, other explanations for the generation capacity emerge from time to time.

Crosslinx Transit Solutions (Crosslinks), the winning proponent, proposed an 18MW (six 3 MW engines) natural gas fired power plant to achieve 40% reduction in life-cycle electricity costs, as well as, provide backup power to protect against Hydro One electricity transmission failure (e.g. June 2013 flood at Hydro One Manby Station left 300,000 people without power for days in west Toronto and east Mississauga). Back-up power is required to ensure that LRT trains can be removed from tunnels, and provide emergency ventilation in the event of a power failure. [From the city’s report Update on Metrolinx Proposed Power Plant for Eglinton LRT, p. 3]

In other words the primary function is to reduce electricity costs rather than simply having backup power. There is no business case to show how generating their own electricity would be cheaper for this line than direct purchase from a utility.

Toronto Hydro requires additional distribution capacity for the Crosstown line and will have implemented this by the time it opens. However, this will not, according to Metrolinx, be in place soon enough to allow early testing. That statement does not explain just how much power testing would require as opposed to full operation of the line, nor whether Toronto Hydro is already capable of providing power for the testing phase.

The City’s report also speaks of heat recovery for use on site and by nearby developments. This would only make sense if the generators were operating fairly regularly, not as occasional backup units.

GO Transit’s RER power feeds will come directly from Hydro One and they will not be constrained by local transmission capacity.

Metrolinx has yet to comment on power for the Crosstown extensions, but they have confirmed that the Finch LRT will not include a comparable power facility in its design.

This entire scheme is looking more and more like a noble idea gone wrong. The specifications for this facility are in a section of the Crosslink project contract (“Output Specifications”, Schedule 15) that is completely redacted from the public version. It is intriguing that the contract contemplates the possibility that the cogeneration facility might be dropped from the project (section 20.18).

TTC Service Changes Effective Sunday, September 4, 2016 (Updated)

Updated August 15, 2016: The detailed table of service changes has been added to this article.

September 2016 will see a return to the “winter” schedules on most TTC routes. Despite talk of service cuts in the budget process, the new schedules include some improvements to correct for operational problems on a few routes, and to better handle existing demand. The scheduled mileage for September is actually above the budget level due to greater than anticipated requirements for diversions and extra vehicles to deal with construction projects.

2016.09.04 Service Changes

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Toronto’s Network Plan 2031: Part V, Crosstown West LRT Extension

This article continues my review of the reports going to Toronto Executive on June 28. I will pick up the thread again just before the whole things winds up at Council in July.

Previous articles in this series are:

The report discussed here is

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A Cat’s Cradle of Transit Plans (Updated)

Updated June 6, 2016 at 11:30 pm: The chart of the demand profile for the Eglinton East LRT has been updated by City Planning to correct an error in labelling where inbound and outblound values were reversed. The new chart has been placed into this post, and the link to the source pdf has been updated below.

Public consultation sessions are coming to an end on the “motherlode” of transit projects (as they were described earlier this year by Toronto’s Chief Planner, Jennifer Keesmaat). This process will soon bring a consolidated set of reports and recommendations for Council. So far, the presentations have been subdivided between various projects.

A major challenge for politicians, the media and the general public is to sort out all of these schemes and to understand how they all fit together. This is not just a question of how we will finance all of the projects, but of how each project and the choices made for it will affect everything else. Where typical studies in Toronto might have wrestled with whether a new line should go under street “A” or “B”, and where the stations might be located, today’s work requires understanding of how the network will evolve over time and how it will work as a whole in a few decades.

The process is complicated further by having municipal (City Planning & TTC) and provincial (Metrolinx) components, and the secretive nature of Metrolinx studies means that some vital information about its projects is not yet public. The Metrolinx reports are expected to appear on their Board’s agenda for June 28, and this implies public availability sometime in the preceding week.

The consolidated City reports should be available on June 21 when a briefing session is to occur at City Hall a week before the June 28 Executive Committee meeting.

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Toronto Council Endorses Transit Plan, Seeks Background Details

At its meeting of March 31, 2016, Toronto Council passed several motions relating to the proposed rapid transit plan for the city.These evolved first as a set of staff recommendations, then amendments at the Executive Committee and finally amendments at Council. The changes along the way give a sense of how the attempt at a general approach taken in the new transit plan by staff can be warped into an emphasis on individual projects while losing sight of the overall purpose. This is not new in Toronto’s political theatre, but the city and region are at a crucial time when the “big picture” of the transportation network is essential. The challenge for those who would lead this process is to find a responsible balance between wider priorities and local concerns without making every decision only on political merits.

Many of these motions involve requests for additional reports, and at one point there was some concern about whether city staff could actually handle the workload. One might ask whether the city should be making such important decisions if staff are unable to produce sufficient background material and simply want approval trusting their recommendations. While studying issues to death is a well-known delay tactic, rushing decisions without all the details is a classic method of railroading through decisions the city might regret later. There is certainly nothing wrong with asking for a more thorough study of items that have been omitted, provided that the same requests do not surface over and over again.

If anything, Council has been woefully underinformed on transit options, priorities and tradeoffs, and such an environment “debate” often has little to do with the real world. Will every Councillor read every page of every study? No, but at least the material will be there to answer questions, support the good ideas and counter the dubious schemes. We hear a lot about “evidence based planning”, but this can be a double-edged sword where “evidence” might not support fondly-held proposals.

This article groups Council’s motions by topic so that readers do not have to sort through the relationship of recommendations and amendments.

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TTC Board Meeting Follow-Up: March 23, 2016

The TTC Board met on March 23. In earlier articles, I have already reviewed the agenda, and discussed ridership statistics.

Arising from the debate on ridership, the Board passed a motion to revisit the whole issue of actively pursuing ridership growth. The motion by Commissioner Shelley Carroll reads:

That TTC staff report back to the Commission by the third quarter of 2016 with a development plan for a comprehensive multi-year strategy to address current ridership stagnation and to achieve a steady rate of ridership growth annually thereafter.

This is particularly important going into the 2017 budget year when there will be pressure to accommodate both the start of new expenses for the Spadina subway extension (TYSSE) and strong growth in the Wheel-Trans budget. Debates and decisions about which options might be pursued to improve transit and attract riders need to have more background than the annual need for politicians to have something to announce. At the very least, changes should be thought out with specific benefits beyond the photo ops.

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TTC Board Meeting Review: February 25, 2016

The TTC Board met on February 25, 2016. This article is a review of some of the reports and discussions at that meeting. For the full list, please refer to the agenda.

In this article:

As part of an update on cycling initiatives, the Board passed a motion asking staff to work together with the City on improved parking facilities for bicycles at subway stations. An article on this appeared on Torontoist’s website.

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A Rainbow of Rapid Transit

In Toronto’s never-ending fascination with new transit maps, the City Planning department has released a vision for our rapid transit network as it will be in 15 years.

201602_15YrPlan

Despite much talk of “evidence-based” planning, this is a very political map, and I cannot help remembering then-Premier David Peterson’s announcement of 1990 (not long before he lost an election and Bob Rae wound up as his much-surprised replacement) that amounted to a chicken-in-every-pot map.

There is nothing wrong with network-based planning, and indeed I have been beating a well-worn drum on that subject for years. But let us also remember that the Scarborough Subway exists because of the political clout of Brad Duguid, a former City Councillor, now Ontario’s Minister of Economic Development. Mayor John Tory, in Toronto Life, cites Duguid as saying that “if anyone tries to cancel the [Scarborough] subway, they’ll do it over his dead body”. “Evidence” apparently includes having a large cudgel to keep wandering pols in line.

The map also includes the Mayor’s pet project, SmartTrack, and it’s no wonder that he steers clear of the Minister’s position given the need for a provincial agency, Metrolinx, to accommodate SmartTrack on their network.

All of this is part of the “Motherlode” of public consultation sessions now running in various places around the City, and through Metrolinx in the wider GTHA. Background information and links to related material are available at Toronto’s TransitTO web site.

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Relief Line, SmartTrack, GO/RER, Scarborough Subway Consultations

Toronto City Planning has released a draft list of upcoming public consultations on various transit plans including:

  • The Relief Line
  • The Scarborough Transit Plan (Subway, SmartTrack, Crosstown East LRT)
  • The Western SmartTrack Plan (SmartTrack, Crosstown West LRT)

2016_ConsultationCalendar

Additional meetings and information about Metrolinx plans (GO Regional Express Rail) will be organized by that agency.

Even more information will be available in March 2016 when the City releases a compendium report on all transit initiatives currently under study. These will include items listed above as well as the “Waterfront Reset” study, TTC Fare Integration proposals and a review of how (or if) Tax Increment Financing can contribute to the many transit projects under review. The intent is that this report will form the basis for public consultation and debate leading to recommendations at Council in June 2016. This is a very aggressive schedule, and there is no indication how consensus will actually be achieved in so short a time, especially with the usually-secretive Metrolinx as an essential player. At least the discussion will be at a network level, not ward-by-ward with a “relief” line for every member of Council, and there will be some filtering of various schemes based on engineering and operational realities.

What is sadly missing from all of this is a discussion of day-to-day transit operations and the backlog in the state-of-good-repair budget. We can blithely discuss billions worth of subway building to Scarborough and a Relief line, but Council won’t fund the basics of running a transit system.