The P.E.I. Energy Corporation is gearing up to replace the turbines at the oldest wind farm in the province, paving the way for a new era of larger and more powerful machines. Situated on P.E.I.’s northwestern tip, the North Cape wind farm and its flagship Aeolus turbine were pioneering installations in the early 2000s, marking a significant milestone for Atlantic Canada.
According to Blair Arsenault, an operations engineer at the P.E.I. Energy Corporation, North Cape has been a cornerstone of wind energy in the province over the past 25 years. However, as the turbines age, they are experiencing more frequent breakdowns and increasing downtime, impacting energy production.
As Arsenault approaches his 10th year in the role, he has observed a notable rise in turbine downtime and repair costs in recent years compared to when he first started. Recognizing the end of the current turbine’s lifecycle, he emphasized the importance of planning for the future and exploring options for the next phase.
The provincial government has initiated a tender for an environmental impact assessment to evaluate the retirement of the aging turbines and the installation of a new wind project at the same locations. The 16 turbines at North Cape were installed in two phases between 2001 and 2003, with Aeolus being retrofitted in 2007.
Arsenault highlighted that the existing equipment has been operational for over two decades, leading to an increase in various failures affecting energy production. While the exact replacement turbines have not been finalized, Arsenault mentioned that the new units will be considerably larger and more efficient.
Compared to the current 0.66-megawatt turbines with a rotor diameter of 47 meters at North Cape, the latest wind farm in northeastern P.E.I. boasts turbines rated at 4.2 megawatts with rotor diameters of 138 meters, showcasing significant technological advancements.
The newer turbines are designed to withstand harsh weather conditions, including colder temperatures and storms, unlike the current ones that have limitations. Arsenault expressed optimism about the upgraded wind farm being operational by 2029 or 2030, aiming to utilize existing infrastructure while adapting to modern turbine specifications.
Addressing the challenges of capacity in wind energy, Angus Orford, the vice-president of corporate planning and energy supply at Maritime Electric, emphasized the need for reliable dispatchable generation to complement intermittent renewable sources like wind and solar power. Despite the benefits of expanding wind energy to meet electricity demands, ensuring a stable and secure energy supply remains a priority.
Orford highlighted the significance of dispatchable generation for maintaining grid stability and addressing capacity shortages, emphasizing the ongoing transition towards a more resilient and diversified energy system.