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Saskatoon Transit

Saskatoon Transit Full-Fleet Zero Emission Bus Implementation Plan

In November 2015, the City of Saskatoon signed an international pact with the Global Covenant of Mayors for Climate and Energy. This pact committed the City to act to reduce emissions and build resiliency plans to address the causes and effects of climate change. In 2017, City Council set greenhouse gas (GHG) reduction targets, including reducing the City of Saskatoon's emissions by 80 per cent below 2014 levels by 2050. The City established municipal and communitywide emissions reduction targets to support this effort. The City identified 40 actions to meet and exceed these targets in the Low Emissions Community Plan. Seven of these identified actions for transportation, including electrifying the City's municipal transit fleet.

As a first step toward electrifying the transit fleet, Saskatoon Transit deployed an electric bus in its fleet as part of a year-long pilot in October 2020. Throughout this pilot, the agency tested the feasibility of zero emissions operations in Saskatoon.

Webinar Recording: Saskatoon Transit Full Fleet Zero Emissions Bus Implementation Plan

This recorded public webinar presented the Saskatoon Transit Full-Fleet Zero-Emission Bus Implementation Plan, following its presentation to Saskatoon City Council in May 2025. Representatives from Saskatoon Transit and the Canadian Urban Transit Research and Innovation Consortium (CUTRIC) detail the modelling approach, key findings, and the implications for long-term fleet planning, infrastructure investment, and climate commitments.

The presentation provided a detailed look at the report's key findings, covering the political, technical, social, and environmental factors shaping this critical transition. It also detailed the three proposed fleet transition scenarios: a full Battery Electric Bus (BEB) solution, a full Fuel Cell Electric Bus (FCEB) solution, and a mixed green fleet. The study offers important insights into how this transition would shape future services, as well as technological and operational decisions for Saskatoon Transit.

Saskatoon Transit: Full Fleet Zero Emissions Bus Implementation Plan FAQ (2025)

This document serves as the Frequently Asked Questions (FAQ) resource for the Saskatoon Transit Full Fleet Zero Emissions Bus Implementation Plan.

It addresses key questions and concerns that have arisen from City Council discussions, the public webinar and direct inquiries from members of the public regarding the study. The information contained here clarifies the study's scope, methodology, assumptions, and key findings, particularly concerning the long-term feasibility of fleet electrification in Saskatoon's unique environmental and economic context.

Summary of Findings

Saskatoon Transit plays a critical role in helping the City achieve its carbon emissions reduction goals. To understand the opportunities and challenges posed by transitioning the municipal transit fleet to zero emissions buses (ZEBs), Saskatoon Transit commissioned the Saskatoon Transit Full-fleet Zero Emissions Bus Implementation Plan. The report views this transition through multiple lenses, including political, technical, social, environmental and economic perspectives. Political perspectives include federal and provincial climate change policies which shape ZEB targets and procurements. This study also includes an analysis of climate change policies that are shaping the North American bus market that supplies Saskatoon Transit. Technical perspectives include assessing the feasibility of a one to one replacement of diesel buses with contemporary ZEB technologies, such as battery electric buses (BEBs) and hydrogen fuel cell electric buses (FCEBs). This analysis integrates detailed simulation modelling that calculates the feasibility of applying BEBs and FCEBs to Saskatoon Transit's current transit operations and in its facility. Social perspectives include examining spatially overlapping vulnerabilities in the City of Saskatoon to prioritize routes for electrification wherein application of the cleanest technologies could, or should, go to the poorest or most disadvantaged communities in the city. Environmental perspectives include an assessment of the full emissions of a full fleet implementation of ZEBs carried out under the scenarios outlined below.

Based on information gathered from the political, technical, social and environmental work carried out for this report, along with Saskatoon Transit's planned bus purchasing schedule and growth plan, this study proposes three fleet transition scenarios.

  • Scenario One:
    (Full BEB solution) with Charging Strategy One (in-depot only charging) and Charging Strategy Two (depot with on-route charging)
  • Scenario Two:
    (Full fuel cell electric bus (FCEB) fleet with Refuelling Strategy One (depot-only refuelling) and block splitting)
  • Scenario Three:
    Mixed green fleet with BEBs using Charging Strategy One (depot-only charging) and FCEBs using block splitting

Click any card below to view a larger summary image.

Summary of findings for Base Case Scenario with a diesel fleet
Base Case Scenario (diesel fleet)
Summary of findings for Scenario One with a full BEB solution
Scenario One (full BEB solution)
Summary of findings for Scenario Two with a full FCEB solution
Scenario Two (full FCEB solution)
Summary of findings for Scenario Three with a mixed green fleet
Scenario Three (mixed green fleet)

About Saskatoon Transit

As the public transit service for the City of Saskatoon (the City), Saskatoon Transit provides an essential service, including fixed and on-demand transit service, connecting Saskatoon's more than 308,400 residents. From 2016 to 2021, Saskatoon's population increased by 7.7 per cent and is projected to continue growing over the next decade.

Before the pandemic, Saskatoon Transit saw unprecedented ridership growth of 8.1 per cent in 2018 and 2.5 per cent in 2019. By 2023, Saskatoon Transit provided 7.4 million rides and over 346,000 hours of service.

In 2020, Saskatoon Transit implemented an on-demand transit (ODT) service to bolster its fixed route network. Initiated as a 12-month pilot, the ODT service extended into 2021 with expanded hours and service.

In parallel, Saskatoon Transit launched a 12-month battery electric bus (BEB) pilot, confirming that a BEB could operate successfully in Saskatoon’s winter conditions. As a result, Saskatoon Transit added two new BEBs to its fleet. This implementation plan builds on those pilots to chart a pathway to a fully zero emission transit fleet.

Infographic with Saskatoon Transit statistics: routes, stops, and ridership.

Frequently Asked Questions

Here are some of the Saskatoon Transit project frequently asked questions

Has Saskatoon Transit given up on electrifying its fleet entirely?

No, Saskatoon Transit has not abandoned its goal of fleet electrification. It has adopted a long-term approach of incremental planning, actively monitoring technological advancements, funding programs, and grid decarbonization to determine the best time for a large-scale transition.

What did CUTRIC assume for Saskatchewan's energy grid composition over 15 years?

The analysis uses the current grid as a baseline. The finding that the carbon-intensive grid is the biggest barrier to emissions reduction is amplified by news that Saskatchewan will extend the life of its coal plants.

What about electric heaters? The report details diesel heaters.

Using diesel-electric hybrid heaters extends a BEB's range by up to 31% in winter. Fully electric heaters significantly increase costs, the number of buses required, and supporting infrastructure, which would lead to higher facility emissions.

When should Saskatoon Transit consider updating the reporting?

CUTRIC advises updating modeling every two to three years or whenever a significant service or technology change is implemented, whichever comes first, to ensure informed decision-making.

How is the base case fuel production GHG emissions calculated and why is it lower than that of Battery Electric Buses (BEBs)?

While BEBs have zero tailpipe emissions, a "cradle-to-grave" lifecycle analysis shows only a 10-15% overall reduction. This is due to Saskatchewan's carbon-intensive electricity grid, where significant upstream emissions are generated to charge the buses.

Does CUTRIC weigh any adverse impacts of not pursuing decarbonization for bus fleets?

Yes. The study's central environmental finding is that, due to the carbon-intensive grid, a full BEB transition would only yield a modest 10-15% emissions reduction. This highlights that the source of electricity is currently the most significant barrier for Saskatoon Transit, not the bus technology itself.

Do these case studies account for the carbon footprint of a start-up, not just the bus operation?

Yes, the analysis is a comprehensive cradle-to-grave lifecycle analysis. This includes emissions from vehicle manufacturing, battery production, infrastructure construction, well-to-wheel fuel production, facility energy, and end-of-life cycle recycling.

Why was an electric trolley system not considered as a scenario for the BRT system?

Modelling a trolley system was not part of the Scope of Work funded by ZETF for this research. However, CUTRIC is supportive of trolleys and encourages agencies to consider them as a potential zero-emission option in the future.

Why do we go through these start-up problems in Canada, when Europe and China have already solved their problems?

Canada faces unique challenges due to its severe climate (reducing battery range), demanding geography (longer routes), and different operational expectations (desire for a "drop-in" diesel replacement).

Is it fair to extrapolate out initial high maintenance costs based on early adoption challenges?

A detailed sensitivity analysis was performed exploring scenarios with much lower BEB maintenance costs. It concluded that even under more favorable assumptions for electric buses, the final ranking of the scenarios did not change significantly.

How do we account for the significant increase in costs not in the SRC report?

CUTRIC's economic analysis is comprehensive and includes significant upfront capital costs for charging and fueling infrastructure, which are detailed in the separate facilities assessment.

How did the social impact indicators consider the accessibility of students and children?

The social analysis considered vulnerable populations as a whole. A differentiated analysis specifically for students and children was not part of the funded scope of work for this project.

What is the impact of tariffs?

Trade tensions and tariffs create uncertainty for the ZEB manufacturing industry, potentially leading to increased material costs and disruptions to established supply chains.

What is the impact of inflation?

Cost increases can reduce a transit agency's buying power, necessitating revisions to procurement plans and potentially resulting in the purchase of fewer vehicles and assets.

What is the impact of manufacturer delays?

Manufacturers may prioritize large orders, impacting the ability of small- to medium-sized transit agencies to implement ZEB procurement in a timely manner.

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