The facility will process biogas received from wastewater treatment digesters by removing contaminants and moisture to create clean renewable methane which will be injected into a natural gas pipeline system operated by San Diego Gas & Electric.
US based SCS is delivering the project for which initial foundations were set in December last year.
The facility will deploy gas clean-up technology produced by Air Liquide, engaged in gas processing systems.
The project is supported by the sale of pollution control bonds authorized by the California Pollution Control Finance Authority.
The project will eliminate millions of tons of carbon, nitrogen and sulfur oxides to help Southern California meet stringent air quality targets.
NECCIF is managed by New Energy Capital Partners and invests in, owns and operates renewable energy, energy efficiency, waste recycling, and distributed generation projects.
The project is expected to be operational in October 2011.