Overview
The Dokie Ridge Wind Farm is an operational wind energy facility situated near Chetwynd, British Columbia, Canada. Commissioned in 2011, the plant serves as a significant contributor to the regional power grid, providing renewable electricity to the province. The facility was developed through a strategic partnership between GE and Plutonic Power Corporation, with Alterra Power Corp. identified as the operator. The project represents a key investment in British Columbia’s renewable energy infrastructure, leveraging the natural wind resources of the Chetwynd area to generate consistent power output. The wind farm features a total installed capacity of 144 megawatts. This capacity is delivered through an array of 48 Vestas V90 turbines, each rated at 3 MW. The mechanical and electrical systems are supported by an on-site electrical substation and seven kilometers of transmission line, facilitating the efficient delivery of generated power to the broader grid. Electrical engineering consulting services for the project were provided by Lex Engineering Ltd. The total project cost was approximately $228 million (Canadian), reflecting the capital investment required for the turbines, infrastructure, and grid integration. Commercial operation of the Dokie Ridge Wind Farm was officially announced by BC Hydro on February 16, 2011. Since its inception, the facility has demonstrated strong performance metrics, producing between 320 and 340 gigawatt-hours of energy per year. This annual output underscores the farm’s reliability and its role in diversifying the energy mix in British Columbia. The operational status remains active, with the plant continuing to harness wind energy to meet regional demand. The integration of 48 individual turbine units allows for distributed generation, enhancing grid stability and reducing transmission losses compared to centralized power sources. The location near Chetwynd was selected for its favorable wind conditions, which are critical for the efficiency of the Vestas V90 3 MW turbines. The infrastructure, including the substation and transmission lines, was designed to handle the variable nature of wind power while maintaining consistent voltage and frequency for the connected grid. The partnership between GE and Plutonic Power Corporation combined technical expertise with local development knowledge, ensuring the project’s successful execution within the $228 million budget. As an operational asset, the Dokie Ridge Wind Farm continues to play a vital role in Canada’s transition toward renewable energy sources, providing a steady supply of clean electricity to consumers in British Columbia and beyond.History and Development
The Dokie Ridge Wind Farm was developed through a strategic partnership between GE and Plutonic Power Corporation, which later became Alterra Power Corp. The project involved significant engineering and infrastructure development to establish a 144 megawatt generating capacity near Chetwynd, British Columbia. Construction included the installation of 48 Vestas V90 3 MW turbines, an electrical substation, and seven kilometers of transmission line, representing a total project cost of approximately $228 million in Canadian dollars.
Electrical engineering consulting services for the facility were provided by Lex Engineering Ltd. The development timeline culminated in the official announcement by BC Hydro that the project had reached commercial operation. This milestone was confirmed on February 16, 2011, marking the beginning of the wind farm's contribution to the regional energy grid. The facility is designed to produce between 320 and 340 gigawatt-hours of energy annually, supporting the operational status of the wind farm as a key energy infrastructure asset in Canada.
Technical Specifications
The Dokie Ridge Wind Farm utilizes a fleet of 48 wind turbines to generate electricity in the British Columbia interior. The facility employs the Vestas V90 model, with each unit rated at 3 MW, resulting in a total installed capacity of 144 MW. This configuration allows the farm to produce between 320 and 340 gigawatt-hours of energy annually. The electrical infrastructure supporting the turbine array includes a dedicated substation and seven kilometers of transmission line, designed to integrate the generated power into the regional grid.
Turbine Configuration
The wind farm’s generation capability is derived from 48 individual Vestas V90 turbines. Each turbine has a nameplate capacity of 3 MW. The collective output of these units establishes the facility’s total capacity of 144 MW. This specific turbine model was selected for its performance characteristics suitable for the local wind conditions near Chetwynd. The annual energy production range of 320 to 340 GWh reflects the operational output of this turbine fleet under typical weather patterns.
Electrical Infrastructure
Power generated by the turbines is collected and stepped up at an on-site electrical substation. From the substation, the electricity is transmitted via a seven-kilometer transmission line. This infrastructure connects the wind farm to the broader electrical grid, facilitating the delivery of renewable energy to consumers. The electrical engineering consulting services for the project were provided by Lex Engineering Ltd., ensuring the integration of the turbine array, substation, and transmission lines met operational standards.
| Component | Specification |
|---|---|
| Turbine Model | Vestas V90 |
| Number of Turbines | 48 |
| Capacity per Turbine | 3 MW |
| Total Installed Capacity | 144 MW |
| Annual Energy Production | 320–340 GWh |
| Transmission Line Length | 7 km |
| Electrical Substation | 1 |
What are the key engineering challenges at Dokie Ridge?
The Dokie Ridge Wind Farm, located near Chetwynd, British Columbia, Canada, represents a significant addition to the regional renewable energy infrastructure. As an operational wind farm commissioned in 2011, the facility is operated by Alterna Power Corp. and features a total generating capacity of 144 MW. The project was developed through a strategic partnership between GE and Plutonic Power Corporation, resulting in the installation of 48 Vestas V90 3 MW turbines. These turbines are supported by an electrical substation and seven kilometers of transmission line, all contributing to an annual energy production range of 320 to 340 gigawatt-hours. The total project cost was approximately $228 million (Canadian).
Electrical Engineering and Grid Integration
A critical component of the Dokie Ridge Wind Farm's successful deployment was the specialized electrical engineering consulting services provided by Lex Engineering Ltd. The integration of a 144 MW facility into the existing grid requires precise technical planning to ensure stability, efficiency, and reliability. Lex Engineering Ltd. played a pivotal role in designing the electrical infrastructure necessary to connect the 48 individual turbine outputs to the main grid. This involved the strategic placement and configuration of the electrical substation, which serves as the central hub for voltage transformation and power distribution.
The transmission infrastructure, consisting of seven kilometers of transmission line, was engineered to minimize energy losses and maintain power quality over the distance from the turbine array to the substation and onward to the broader BC Hydro network. The design had to account for the variable nature of wind power, ensuring that the electrical systems could handle fluctuations in output while maintaining synchronization with the grid frequency. The collaboration between the project developers, GE, Plutonic Power Corporation, and the engineering consultants ensured that the facility met the rigorous technical standards required for commercial operation.
BC Hydro officially announced that the Dokie Ridge Wind Farm reached commercial operation on February 16, 2011. This milestone marked the successful completion of the engineering and construction phases, validating the design choices made by Lex Engineering Ltd. and the project partners. The integration of the wind farm into the grid not only added 144 MW of capacity but also contributed to the diversification of the energy mix in the Chetwynd area. The project serves as an example of how specialized engineering consulting is essential for the effective deployment of large-scale wind energy projects, ensuring that the generated power is reliably delivered to consumers.
The technical specifications of the Vestas V90 3 MW turbines, combined with the robust electrical infrastructure designed by Lex Engineering Ltd., allow the Dokie Ridge Wind Farm to achieve its annual production targets of 320 to 340 GWh. The seven-kilometer transmission line is a key element in this achievement, providing a dedicated pathway for the electricity generated by the 48 turbines. The project's success underscores the importance of integrating advanced turbine technology with well-engineered electrical systems to maximize the output and reliability of wind energy facilities.
Economic Profile
The Dokie Ridge Wind Farm represents a significant capital investment in the renewable energy infrastructure of northern British Columbia, with a total project cost of approximately $228 million (Canadian). This financial commitment underpins the facility's ability to deliver a generating capacity of 144 megawatts, positioning it as a notable contributor to the regional power grid. The economic structure of the project was defined by a strategic partnership between GE and Plutonic Power Corporation, which facilitated the financing and execution required to bring the asset to commercial operation in 2011.
Capital Expenditure and Infrastructure Investment
The $228 million expenditure covered the procurement and installation of 48 Vestas V90 3 MW turbines, which form the core generating assets of the farm. This hardware investment was complemented by essential balance-of-plant infrastructure, including an electrical substation and seven kilometers of transmission line necessary to integrate the intermittent wind resource into the broader grid network. The project also required specialized professional services, with electrical engineering consulting provided by Lex Engineering Ltd., adding to the overhead and technical assurance costs associated with the development phase.
Operational Economics and Regional Impact
From an operational standpoint, the Dokie Ridge Wind Farm produces between 320 and 340 gigawatt-hours of energy per year, generating recurring revenue streams that help amortize the initial capital outlay. The facility is operated by Alterra Power Corp., which manages the asset to maintain its status as an operational contributor to the province's energy mix. The commercial operation of the project was officially announced by BC Hydro on February 16, 2011, marking the point at which the wind farm began delivering economic value through power purchase agreements and grid stability contributions. Located near Chetwynd, British Columbia, the project injects economic activity into the local area through land lease payments to local landowners, property tax revenues, and operational employment, integrating the renewable energy sector into the traditional resource-based economy of the region.
Why it matters
The Dokie Ridge Wind Farm represents a significant expansion of renewable energy infrastructure in British Columbia, a province whose electricity generation has historically been dominated by hydroelectric power. As one of the larger wind facilities in the region, its 144 MW capacity contributes meaningfully to the diversification of the provincial grid, reducing reliance on seasonal water levels and enhancing energy security. serving as the operator. This collaboration highlights the role of both international technology providers and local energy firms in advancing Canada’s clean energy portfolio. The facility’s annual production of 320 to 340 gigawatt-hours of electricity underscores its substantial output, helping to meet growing demand in the Peace River region and beyond.
Grid Integration and Technological Design
The wind farm’s integration into the BC Hydro grid was marked by the announcement of its commercial operation on February 16, 2011. The project includes 48 Vestas V90 3 MW turbines, an electrical substation, and seven kilometers of transmission line, all designed to efficiently channel power to the broader network. The use of Vestas V90 turbines reflects a choice of proven, high-efficiency technology suited to the local wind conditions near Chetwynd. This infrastructure not only supports immediate energy needs but also provides a template for future wind projects in British Columbia, demonstrating the viability of large-scale wind integration in a hydro-heavy system.
Economic and Environmental Impact
The project cost approximately $228 million (Canadian), representing a significant capital investment in the region’s renewable energy capacity. This expenditure supported local job creation during construction and ongoing maintenance, while also attracting further investment in the Peace River area. Environmentally, the wind farm’s annual output of 320 to 340 gigawatt-hours helps reduce carbon emissions by displacing fossil fuel-based generation. In a province already committed to clean energy, Dokie Ridge Wind Farm strengthens British Columbia’s position as a leader in renewable energy adoption, contributing to broader climate goals and energy independence. Its operational success since 2011 continues to validate the strategic importance of wind power in Canada’s evolving energy landscape.