Relocating the cogeneration engine

We have two cogeneration engines at North Head that meet some of the facility’s energy needs. We capture biogas from the anaerobic digesters and use it to power a combustion engine that drives an electrical generator.

On of our early activities on the project was to relocate one of the two cogeneration engines to allow room for the new digesters to be built.

This involved:

• demolishing the existing concrete slab
• excavating and preparing the area to lay the new foundations
• forming and pouring the new concrete slab and pavement
• relocating the existing cogeneration engine and other associated equipment to the new location using a large crane
• installing new electrical cables
• upgrading the cogeneration engine to capture and reuse energy produced to heat the digesters.

Check out our time lapse video showing the team in action here!