Name: McMahon Cogeneration Plant
Address: CA

Overview

The McMahon Cogeneration Plant is an operational natural gas power station situated in Taylor, British Columbia, Canada. This facility serves as a key component of the regional energy infrastructure, functioning primarily as a combined heat and power (CHP) installation. The plant is jointly owned by Heartland Generation and NorthRiver Midstream, with each entity holding a 50% stake in the operation. This ownership structure directly supports the plant’s dual-output design, which is optimized to meet the specific thermal and electrical needs of the local industrial and utility sectors.

Located in Taylor, the plant’s primary operational mandate is to supply steam to a gas processing plant owned by NorthRiver Midstream. This thermal output is critical for the efficiency of the gas processing operations, leveraging the cogeneration process to capture waste heat that would otherwise be lost in a simple-cycle power generation model. In addition to its thermal contribution, the McMahon plant generates electricity that is fed directly into the British Columbia Grid. This electrical output is secured through a long-term power sale agreement with BC Hydro, ensuring a stable revenue stream and a reliable power supply for the provincial utility.

With an installed capacity of 120 MW, the McMahon Cogeneration Plant represents a significant mid-scale generation asset in the Canadian energy landscape. The facility utilizes natural gas as its primary fuel source, a choice that aligns with the broader energy mix of British Columbia and provides a flexible, relatively low-emission option for baseload and peak power generation. The plant’s operational status remains active, continuing to deliver both steam and electricity to support the economic activity in the Taylor area and the broader provincial grid.

The strategic partnership between Heartland Generation and NorthRiver Midstream underscores the importance of integrated energy solutions in modern infrastructure. By combining power generation with direct industrial steam supply, the McMahon plant maximizes fuel efficiency and reduces the overall carbon footprint per unit of energy produced. This model of cogeneration is increasingly valued for its ability to provide resilience to both industrial operations and the electrical grid, particularly in regions with growing energy demands. The plant’s role in supplying BC Hydro further highlights its significance in the provincial energy portfolio, contributing to grid stability and diversity.

Ownership and Corporate Structure

The McMahon Cogeneration Plant operates under a distinct dual-ownership model, structured as a fifty-fifty joint venture between Heartland Generation and NorthRiver Midstream. This corporate arrangement is not merely a financial partnership but a strategic integration of energy production and processing assets, designed to optimize the utilization of natural gas resources in the Taylor, British Columbia region. The equal split in ownership reflects the symbiotic relationship between the two entities, each contributing critical infrastructure and market access to the project's operational success.

Heartland Generation’s Role

Heartland Generation holds a 50% stake in the facility, representing the power generation arm of the partnership. As a major independent power producer, Heartland’s involvement ensures that the plant’s electrical output is efficiently managed and marketed. The plant’s primary function includes supplying electricity to the British Columbia Grid. This integration is facilitated through a long-term power sale agreement with BC Hydro, the provincial crown corporation responsible for the majority of electricity generation, transmission, and distribution in the province. Heartland’s expertise in power market dynamics and grid connectivity is central to the plant’s role as a reliable source of baseload and peaking power for the regional grid.

NorthRiver Midstream’s Role

NorthRiver Midstream, the other 50% owner, brings the upstream gas processing perspective to the joint venture. NorthRiver owns the adjacent gas processing plant for which the McMahon facility primarily supplies steam. This arrangement creates a direct thermal link between the cogeneration unit and the gas processing operations, allowing for the efficient use of waste heat or dedicated steam generation to meet the thermal demands of gas extraction and processing. By owning half of the cogeneration plant, NorthRiver secures a stable and cost-effective source of steam, reducing reliance on external thermal energy providers and enhancing the overall economic efficiency of its midstream operations.

Strategic Synergy

The 50/50 ownership structure aligns the incentives of both parties. Heartland Generation benefits from a guaranteed thermal load from NorthRiver’s gas processing plant, which helps stabilize the cogeneration unit’s output and improves its overall thermal efficiency. Simultaneously, NorthRiver gains access to a dedicated power generation asset that supports its processing needs while also contributing to the regional electricity supply. This dual-purpose design—producing both steam for industrial use and electricity for the grid—maximizes the value extracted from the natural gas fuel source, embodying the core principle of cogeneration. The partnership leverages the geographic proximity of the assets in Taylor, British Columbia, to minimize transmission and distribution losses, further enhancing the project’s economic viability.

Technical Specifications and Equipment

The McMahon Cogeneration Plant is engineered to provide combined heat and power (CHP) services, optimizing energy efficiency by utilizing waste heat from gas turbines to generate steam. The facility’s core generating capacity is 120 MW, derived from natural gas combustion. This output is fed into the British Columbia Grid under a long-term power sale agreement with BC Hydro, while the thermal output is directed to a gas processing plant owned by NorthRiver Midstream.

Turbine and Heat Recovery Systems

The power generation infrastructure relies on two Westinghouse CW251B12 gas turbines. These turbines are the primary drivers of the cogeneration cycle, converting the chemical energy of natural gas into mechanical and electrical energy. The specific model designation, CW251B12, indicates the turbine’s design parameters and performance characteristics suitable for the plant’s operational demands.

Complementing the gas turbines are two Deltak heat recovery steam generators (HRSGs). These units capture the exhaust heat from the Westinghouse turbines to produce high-pressure steam. This steam is primarily utilized by the adjacent NorthRiver Midstream gas processing plant, enhancing the overall thermal efficiency of the site. The integration of the turbines and HRSGs allows the plant to function as a true cogeneration facility, maximizing the utility of the natural gas fuel source.

Component	Manufacturer / Model	Quantity	Primary Function
Gas Turbines	Westinghouse CW251B12	2	Electricity generation (120 MW total)
Heat Recovery Steam Generators	Deltak	2	Steam production for gas processing

The configuration of two turbines and two HRSGs provides operational flexibility, allowing for partial load operations or maintenance on one unit while the other continues to supply power and steam. This redundancy ensures consistent delivery of energy to both the BC Hydro grid and the NorthRiver Midstream processing facilities. The plant’s technical design reflects a focus on reliability and efficiency in the natural gas sector of British Columbia.

How does cogeneration work at McMahon?

The McMahon facility operates as a natural gas-fired cogeneration plant, a configuration that maximizes energy efficiency by simultaneously producing electricity and useful thermal energy from a single fuel source. Owned jointly by Heartland Generation and NorthRiver Midstream, the plant is strategically located in Taylor, British Columbia, to serve the specific needs of adjacent industrial infrastructure. The core function of the plant is not merely power generation but the dual output of electrical power and process steam, which are critical for the operations of the neighboring gas processing plant owned by NorthRiver Midstream.

Electricity Generation and Grid Integration

The plant has an installed capacity of 120 MW, utilizing natural gas as its primary fuel source. The generated electricity is fed directly into the British Columbia Grid. This integration is governed by a long-term power sale agreement with BC Hydro, ensuring a stable market for the plant's electrical output. The operational status of the plant remains active, contributing to the regional energy mix by providing dispatchable power derived from natural gas. This arrangement allows for a consistent supply of electricity to the provincial grid, leveraging the flexibility of gas-fired generation to meet varying demand profiles.

Thermal Output and Steam Production

A defining characteristic of the McMahon plant is its role in supplying steam to the adjacent gas processing facility. In a typical cogeneration setup, waste heat from the electricity generation process is captured and converted into high-pressure steam. At McMahon, this thermal energy is directly utilized by the NorthRiver Midstream gas processing plant. This symbiotic relationship enhances the overall efficiency of the natural gas value chain. The steam is essential for various processing stages, such as dehydration or heating, within the gas plant. By capturing heat that would otherwise be lost in a conventional power-only plant, the facility reduces the total fuel consumption required to produce both power and steam.

Operational Synergy

The joint ownership structure, with Heartland Generation and NorthRiver Midstream each holding a 50% stake, facilitates the coordination required for effective cogeneration. This partnership aligns the interests of power generation and gas processing, optimizing the operation of both assets. The plant's design ensures that the natural gas fuel is used efficiently to meet the dual demands of the electrical grid and the industrial steam requirements. This integrated approach is a hallmark of modern energy infrastructure in resource-rich regions like British Columbia, where proximity to fuel sources and industrial consumers allows for highly efficient energy conversion processes.

Grid Integration and Power Sales

The McMahon Cogeneration Plant is integrated into the broader energy infrastructure of British Columbia through its direct connection to the British Columbia Grid. This integration is not merely technical but is underpinned by a structured commercial framework designed to ensure long-term operational stability and revenue predictability for the asset. The plant’s primary commercial mechanism is a long-term power sale agreement with BC Hydro, the province’s dominant utility and grid operator. This agreement facilitates the transfer of electricity generated at the plant directly into the regional transmission network, allowing the power to be distributed across the province’s load centers. The existence of such a long-term contract is a critical component of the plant’s financial model, mitigating market volatility that often affects natural gas-fired generation assets. By securing a dedicated off-taker in BC Hydro, the plant operators, Heartland Generation and NorthRiver Midstream, have established a reliable revenue stream that supports the continued operation of the 120 MW facility.

Role in the Regional Energy Mix

In the context of the British Columbia energy landscape, the McMahon plant serves a dual-purpose role that distinguishes it from standard baseload or peaking power stations. While it contributes electrical capacity to the grid, its operational profile is significantly influenced by its secondary function: supplying steam to a gas processing plant owned by NorthRiver Midstream. This cogeneration aspect means that the plant’s output is often optimized for thermal efficiency as much as for electrical production. The natural gas fuel source is utilized to generate both electricity and process steam, creating a synergistic energy loop that enhances the overall efficiency of the NorthRiver Midstream gas processing operations. This integrated approach allows the plant to provide flexible power to the BC Hydro grid, potentially adjusting output based on the thermal demands of the adjacent gas processing facility. The plant’s location in Taylor, British Columbia, positions it within a key resource-rich region, allowing for efficient fuel sourcing and grid interconnection. The long-term agreement with BC Hydro ensures that this flexible, cogeneration-based power supply remains a consistent part of the provincial energy mix, contributing to grid reliability while supporting local industrial energy demands.

Significance

The McMahon Cogeneration Plant serves as a critical node within the energy infrastructure of Taylor, British Columbia, functioning not merely as a power generator but as an integral component of the local industrial ecosystem. Its operational model is defined by a strategic synergy between natural gas processing and electricity generation, a design that maximizes resource efficiency for the regional grid. The facility is owned jointly by Heartland Generation and NorthRiver Midstream, each holding a 50% stake, a structure that aligns the interests of power production with upstream gas processing activities.

Integration with Gas Processing

A primary function of the McMahon plant is to supply steam to the Northern Lights Gas Processing facility, which is also owned by NorthRiver Midstream. This integration represents a classic cogeneration approach, where waste heat or byproduct steam from the power generation process is utilized to drive thermal processes in adjacent industrial operations. By providing consistent steam supply to the Northern Lights facility, the McMahon plant enhances the operational stability and thermal efficiency of the gas processing hub. This symbiotic relationship reduces the need for independent boiler systems at the processing plant and ensures that the natural gas feedstock is utilized for both thermal and electrical energy outputs, thereby optimizing the overall energy balance of the Taylor industrial complex.

Contribution to the BC Hydro Grid

In addition to its industrial steam duties, the McMahon Cogeneration Plant delivers 120 MW of electricity to the British Columbia Grid. The plant’s operational status remains active, providing a reliable baseload or intermediate capacity source that supports the stability of the regional power network. The natural gas fuel source allows for flexible operation, enabling the plant to respond to fluctuating demand patterns on the BC Hydro grid while maintaining the thermal output required by the Northern Lights facility. This dual-output capability underscores the plant’s strategic importance in balancing industrial energy needs with broader provincial electricity supply requirements.

Location and Regional Context

This location places the facility within a key region for natural gas processing and power generation in western Canada. The plant’s geographic positioning is strategic for its dual role in supplying steam to adjacent industrial facilities and feeding electricity into the regional grid. Specifically, the plant is located in Taylor, British Columbia, which serves as a hub for energy infrastructure in the area. The proximity to natural gas resources in British Columbia facilitates the plant’s primary fuel supply, ensuring efficient operation of its natural gas turbines.

Proximity to Energy Infrastructure

The plant’s location in Taylor, British Columbia, provides direct access to critical energy infrastructure. It is primarily used to supply steam to a gas processing plant owned by NorthRiver Midstream, which is located in close proximity. This integration allows for efficient cogeneration, where waste heat from power generation is utilized for industrial steam production. Additionally, the plant connects to the British Columbia Grid through a long-term power sale agreement with BC Hydro. This connection enables the transmission of generated electricity to consumers across the province, supporting regional energy demand. The infrastructure linking the McMahon Cogeneration Plant to the grid includes transmission lines and substations that facilitate the flow of power from the plant to the broader network.

Regional Energy Context

Taylor, British Columbia, is part of a broader energy landscape characterized by abundant natural gas reserves and established power generation facilities. The presence of the McMahon Cogeneration Plant contributes to the region’s energy mix, providing a reliable source of baseload power. The plant’s operational status as an active facility underscores its importance in maintaining grid stability and meeting local energy needs. The collaboration between Heartland Generation and NorthRiver Midstream highlights the integrated approach to energy production in the region, combining power generation with gas processing to maximize efficiency and resource utilization. This model supports the economic viability of energy projects in British Columbia, leveraging local resources to serve both industrial and residential consumers.

McMahon Cogeneration Plant