Wind farm operators know the drill for electric pitch control battery maintenance.

Low-voltage alarms can happen on a daily basis. Icy cold or blazing hot temperatures affect battery performance. It’s routine to schedule climbs so technicians can replace batteries. Warehousing and battery disposal logistics are other matters altogether. While batteries are useful for many applications, we’ve discovered that when it comes to electric emergency pitch control, there’s a better way.

Maxwell’s ultracapacitor retrofit modules replace existing batteries for reliable and fail-safe pitch system performance.

Our retrofit energy storage solutions are based on high-power ultracapacitor modules that outperform batteries on many fronts:

  • Resilient in cold and hot temperatures (–40°C to 65°C)*
  • Average lifespan of 15+ years* surpasses batteries’ 2 – 4 years
  • No voltage alarms means fewer turbine climbs
  • No chemical leakage that could compromise performance or cause collateral damage
  • More uptime for revenue generation – durable ultracapacitors don’t need regular turbine shut-downs for checkups
  • Minimal to no modifications to existing emergency power unit (EPU)
  • Integrated communication with data delivery via SCADA
  • Minimal technician training needed to perform install
  • 4-year warranty and committed customer support
* Results may vary. Additional terms and conditions, including the limited warranty, apply at the time of purchase. See the warranty details for applicable operating and use requirements.
 

The retrofit modules are drop-in solutions that replace fielded batteries and fit seamlessly into the turbine’s existing emergency power unit.

Retrofit module designed for use in Clipper 2.5 MW turbines
patent pending

Clipper

54 retrofit modules per turbine

This solution is the same size and form factor of existing batteries in the Clipper turbine, replacing each battery module in the pitch system.

Retrofit module designed for use in GE 1.5 MW turbines
patent pending

Clipper

3 retrofit modules per turbine

The retrofit modules replace the GE 1.5 MW turbine's original battery system (one module is equivalent to 4 batteries per blade plus their respective chargers).

 

Case Study: Wind Farm Reduces Pitch Faults And Battery Replacements Using Maxwell Technologies’ Retrofit Solution For Emergency Pitch Backup Systems

 

Wind Retro

Improve safety. Reduce risk. Stay online.

Maxwell’s ultracapacitor retrofit solutions were developed with an eye toward addressing the common concerns of wind farm asset owners and operators. Additional benefits of Maxwell's retrofit solutions include:

Improves revenue generation
The ruggedness and reliability of our ultracapacitor cell technology makes for few to no maintenance needs, contributing to more uptime for revenue generation

Lowers overall system cost
Our retrofit modules eliminate the costs of battery maintenance and replacement

Improves safety for technicians
Ultracapacitor modules can be fully discharged for safer working conditions in a turbine’s high-voltage work space

Safer handling and shipping
Modules are fully discharged for safe transportation to the site

Maxwell’s ultracapacitor retrofit solutions were developed with an eye toward addressing the common concerns of wind farm asset owners and operators. Additional benefits of retrofit solutions include:

Improves revenue generation
The ruggedness and reliability of our ultracapacitor cell technology makes for few to no maintenance needs, contributing to more uptime for revenue generation

Lowers overall system cost
Our retrofit modules eliminate the costs of battery maintenance and replacement

Improves safety for technicians
Ultracapacitor modules can be fully discharged for safer working conditions in a turbine’s high-voltage work space

Safer handling and shipping
Modules are fully discharged for safe transportation to the site

Are you ready for next-level emergency pitch control?

Contact us to get in touch with a Maxwell sales representative. We look forward to serving you.