Mass Balance and Energy Optimization Engineer

Cenovus Energy

Cenovus Energy

Toledo, OH, USA
Posted on Tuesday, July 9, 2024
Worker Type: EmployeeGroup: Process Engineering - Toledo Department 2 DepartmentJob Post End Date: 07/23/2024

About this opportunity:

Cenovus is looking for a Mass Balance and Energy Optimization Engineer for the Toledo, OH Refinery. This is a new position reporting to the Process Engineering Manager, this individual will implement the Downstream Measurement Standard, analyze, and report on mass balance and energy performance, and work to improve the units and refinery fence line mass balance.

While part of the process engineering team, this individual will work closely with the Planning and Integrated Value Chain teams to facilitate refinery performance analysis and tune the crude selection tool. As well as, work with the area process engineers to identify and track areas where energy efficiency can be achieved, and work closely with the business and technical teams to reduce value loss by correctly identifying and remediating sources of hydrocarbon loss.

What you’ll do:

Mass Balance

  • Implement the Downstream Measurement Standard

  • Run the unit mass balance model daily and ensure its statistical accuracy

  • Attend daily operational meetings to ensure that the mass balance model correctly represents unit shutdowns and manual line-ups

  • Identify meters in gross error and report those meters to the area business teams to remediate erroneous meters

  • Ensure that data and calculations used to convert volume flows to mass

  • Publish material balance data to unit engineers for validation

  • Facilitate the development of tools that will enable better yield decisions

  • Work with the back-casting analyst to enable the back-casting process

  • Work with the unit engineers to plan and execute test runs to improve the accuracy of the crude selection tool

  • Troubleshoot meters and unit mass balance tools as required

Mass Loss / Gain

  • Report monthly refinery mass loss/gain from the AORA model with corrections for FCC Coke, OMS, and Process Losses (as required)

  • Correctly update the mass balance models to improve mass loss/gain reporting accuracy

  • Lead continuous improvement initiatives to identify and reduce hydrocarbon losses

Energy Management

  • Report monthly Solomon Energy Intensity Index (EII)

  • Lead Solomon Study for Process Engineering group

  • Develop tools to enable visibility into energy consumption across the plant

  • Lead continuous improvement initiatives to identify and reduce energy consumption

Other Responsibilities

  • Contribute to the development of and implement the Downstream Measurement Standard (prepared by Downstream Technical Services) and modify as required for site-specific needs

  • Actively participate and contribute to a Community of Practice with other Mass Balance & Energy Optimization Engineers and the DTS team

Who you are:

  • Must be legally eligible to work in the United States

  • 2+ years of relevant engineering or data science work experience

  • Bachelor's degree or equivalent experience from an accredited institution


  • Bachelor's degree in Chemical Engineering or related discipline

  • Data Analytics background

  • Refinery experience

  • Process Engineering background

  • Prior experience using historians such as PI process book, Laboratory Information Management Systems (LIMS) such as cBliss, and Microsoft Office

What we offer:

  • Company-provided medical and dental benefits

  • Time-off

  • Retirement Savings Plan

  • Tuition & Professional Development Assistance

If you require accessibility assistance to complete the on-line application or otherwise apply for an open position with Cenovus, its subsidiaries and affiliates, please email

Internal candidates that are currently in a lower grade will be assessed based on their sustained job performance, how they demonstrate the expected organizational competency behaviors and values and in discussions with their current leader prior to determining next steps.

Cenovus Energy is an affirmative action employer, and we are committed to providing equal employment opportunities to qualified applicants without regard to age, disability, genetic information, gender, gender identity, sexual orientation, race, color, religion, veteran status, national origin, or personal or physical characteristics protected by law.

Who we are:

We’re an integrated energy company headquartered in Calgary with oil and natural gas production operations in Canada and the Asia Pacific region, and upgrading, refining and marketing operations in Canada and the United States. We’re committed to maximizing value by developing our assets in a safe, responsible and cost-efficient manner, integrating environmental, social and governance considerations into our business plans.

We are currently the largest refiner in Ohio and transport products from our refineries in Lima and Toledo, Ohio and Superior, Wisconsin via pipelines, rail cars and trucks to customers throughout the United States.

We've been named a Top Alberta Employer for 2024, a designation recognizing organizations leading their industries in offering exceptional places to work.

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At Cenovus, we embrace diversity of thought, experience and backgrounds to help us make better business decisions, address our challenges, seize opportunities and unlock innovative solutions. We’re committed to building a diverse, equitable and inclusive workplace where people feel respected, valued and engaged. We strive for a collaborative, physically and psychologically safe environment where you can be yourself, feel a sense of belonging and thrive. For more information, including details on our inclusion and diversity targets and networks, visit

The requirements of this posting may be modified to support business needs. Title and compensation administration will be based on the skills and capabilities of the successful incumbent.


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