New Zealand Windfarms says its chief financial officer Garry Forward will resign from January 29, "to pursue independent consultancy".

Mr Forward will remain available as a part-time consultant to the company.

"We will evaluate ongoing requirements for the role and the options for meeting those requirements before making a final decision," chief executive Steve Cross said in a statement.

Windfarms warned on August 28 that it was uncertain as to whether it could continue as a going concern.

The company is also in dispute with Christchurch-based turbine supplier, Windflow Technology, and withholding payments pending successful IEC accreditation of Windflow's two-bladed turbine technology.

NZ Windfarms is installing Windflow turbines at its Te Rere Hau site in the Manawatu. It is still Windflow's sole customer.