Biogas Compressors Project in New Zealand – High‑Efficiency Gas Compression System with WITTIG Technology
This biogas project in New Zealand features a high‑performance gas compression package designed to ensure efficient, reliable, and energy‑optimized biogas supply for multiple generator sets. The complete biogas compressor package includes an inlet liquid separator for removal of condensates, a high‑efficiency inlet filter, and a WITTIG ROW 120 G rotary vane gas compressor driven by a 55 kW variable speed drive (VSD) motor. This configuration provides stable gas flow, optimized energy consumption, and long‑term operational reliability.
To ensure proper cooling and moisture management during biogas compression, the system incorporates a discharge cooler and a condensate separator, enabling consistent gas quality before it enters the generator room.
A dedicated control panel equipped with the Variable Speed Drive is installed inside the generator building, allowing precise control of gas flow and pressure, improved energy efficiency, and seamless integration with the site's operational requirements.
The upgraded gas compression system delivers biogas to the generator room at 3.5 bar(g)—a pressure specifically matched to the requirements of the Waukesha engine. The system also distributes gas at a reduced pressure suitable for the two Allen generator sets, ensuring optimal performance and safe operation across all power‑producing units.
This installation showcases the advantages of Wittig biogas compressors for renewable energy applications, providing:
- consistent and efficient biogas compression
- flexible pressure control using VSD technology
- robust, long‑lasting compressor performance
- stable gas supply for multi‑engine biogas power plants
The project demonstrates how a WITTIG ROW 120 G biogas compressor system can support reliable renewable energy generation while maximizing efficiency and long‑term cost savings for biogas facilities in New Zealand and worldwide.
