Suzlon S64* turbines life extended with maximum performance

RENEW Energy Maintenance repeatedly experienced control system failures on their Suzlon S64 wind farm in Southwest Minnesota and a general lack of flexibility.

Suzlon S64* turbines life extended with maximum performance

RENEW Energy Maintenance repeatedly experienced control system failures on their Suzlon S64 wind farm in Southwest Minnesota and a general lack of flexibility. A control system retrofit replaced the existing turbine controller and the electrical pitch system and provided them with maximized availability and new life to the turbine.

An increased number of failures on the control system

Over the past decades, thousands of wind turbines have been installed worldwide and it is common that after ten years of operation their performance starts decreasing and faults occur. At RENEW Energy Maintenance’s remote wind project in Minnesota, they faced similar problems.

“These turbines historically had high rates of control system failures with limited flexibility in terms of improvements, whether that be control logic improvements or hardware improvements, such as upgrading components,” explains RENEW’s Director of Operations Nick Siddens.

RENEW was on the lookout for a cost-effective retrofit solution that would make the aging turbines run more efficiently and increase profitability. Many potential suppliers were in play but in the end, RENEW decided to partner with DEIF.

“After considering all our options, we moved forward with DEIF because of their willingness to work with RENEW to provide a very robust and affordable system for ourselves and our current customers. Not only did this improve the performance of the project, it also qualified for 80% of the Production Tax Credits”.

Jim Mikel |

“Since the retrofit, these turbines have been running great and we see it in our production and availability. The improvements were immediately apparent, and we continue to see incremental gains as we dial these systems in.”

Nick Siddens |

Can I help you?

Jean S. Felber, Business Development Manager, USA

+45 2019 9291 |