Contact Energy Case Study

Contact Energy, Stratford Power Station New Zealand

This EnviroSonic installation – units across multiple generating sites and in other plant areas – in early 2012 resulted in a sharp reduction in algae and biofilm growth from water received from a local river. This allowed a significant drop in chemical use, ensuing very positive environmental benefits and large cost savings to the company.


A testimonial follows from Contact Energy, together with a before and after analysis of water quality.

Reports from Contact Energy Ltd for Envirosonic

These documents clearly show the excellent long term results achieved by our ultrasound in keeping algal levels at extremely low levels.

Testimonial for Envirosonic from Contact Energy Ltd

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