LICAP Technologies has partnered with Windurance to develop an ultracapacitor retrofit solution to replace the existing battery-based energy storage and charger system in GE 30Nm & 20Nm wind turbine pitch battery boxes. It is a “drop in” replacement not requiring any modification to the pitch control system box or operating system. The ultracapacitor modules and capacitor charger unit (CCU) are common across the different pitch box iterations with only harness, bracket & mounting accommodations.

Electric Pitch Control

www.licaptech.com

Battery Replacement Solutions

LICAP Technologies Inc. is a world-class manufacturer of ultracapacitor and lithium-ion capacitor products with market leading performance. The key element of our product performance is the industry leading dry electrode technology. LICAP’s Activated Dry Electrode combines manufacturing efficiency with innovative fabrication methods that results in outstanding ESR, Capacitance, and Life Cycle performance characteristics. At LICAP, we also conduct R&D to identify innovative new materials and processes to improve product performance and reduce overall costs. Our primary research center, electrode production facility and USA Headquarters is located at Sacramento, CA USA. Ultracapacitor product R&D and production are conducted at our LICAP facility in Tianjin, China.

Windurance designs and delivers performance-optimized wind turbine blade pitch technologies and power conversion equipment. In operation for more than 20 years, Windurance has accumulated vast knowledge and experience with hub-proven technology and a reputation for high performance products that consistently meet the needs of customers in the Wind Energy market. Windurance has an installed base of products in wind turbines totaling 3GW of generation and leverages decades of experience in blade pitch control systems to provide fit-for-purpose products to the wind industry and beyond.

9795 Business Park Drive - Sacramento, CA 95827 USAhttps://licaptech.com/ • info@licaptech.comLICAP Technologies, Inc.

LICAP GE 30Nm Wind Retrofit

LICAP_sellsheetsREV.indd 2 8/28/19 7:00 PM

System Components

- 6 Ultracapacitor Modules per blade - 1 Charger/Communciations Module per Blade - Mounting Brackets for Charger/Communications Module with wiring harness per blade. 3 options for different box versions.

6 - Ultracapacitor Modules Charger Box W-RS-485

Wiring Harness

-Established wind experience & knowledge of the industry

-LICAP ultracapacitors use patented dry electrode technology for improved reliability and performance as compared to other manufacturers

-Windurance Charger Module is Made in the USA (

-As a partner, Windurance has certified technicians to climb & trouble-shoot

LICAP - A World Leading Manufacturer of Ultracapacitors

Windurance Capacitor Charging Unit 710-70004

• Robust Electrical Design: The Windurance CCU design ensures reliable operation under extreme conditions. - The tests conducted in development exceed the IEC standards as follows: • IEC 61000-4-2 Electrostatic discharge immunity test – Level IV+ • IEC 61000-4-4 Electrical fast transient/burst immunity test – Level IV+ • IEC 61000-4-5 Surge immunity test – Level IV+

• Universal: The Windurance CCU serves all 20Nm and 30Nm configurations without modification, enabling fleet-wide compatibility for streamlined inventory management.

• Lightning Strike Protection: Our CCU is certified to IEC 62305-1 Edition 2.0, 2010.

• Wide Operating Voltage Range: To protect against fluctuations in supply line voltage that can be common in remote locations, the CCU is designed and tested to operate from 40% low to 30% high line continuously. The CCU retains full charging capability down to 10% below nominal line voltage and continues to communicate all the way down to 40% below nominal.

• Ultracapacitor Monitoring: The CCU can monitor individual module voltages and total string voltage. Any ultracapacitor module low voltage condition is communicated to the wind turbine controller for action.

• Charge time: The CCU can charge the ultracapacitor string in one blade from 0V in 45 minutes (30Nm) or 40 minutes (20Nm). Both versions can recharge completely within 5.5 minutes after a single pitch event, worst case.

Key Retrofit ComponentsLICAP Ultracapacitor Energy Storage Module SM0500-016-GER

• Drop-in replacement: Utilizes existing battery weld studs for the ultracapacitor modules. RS-485 communications, wiring harness, and mounting brackets adapt natively to all OEM component configurations without any modifications required.

• 15+ year life: The LICAP 3000F cell is rated at 2.7V. Our module configuration enables operation at only 2.42V, which is ideal for long life.

• Wide operating temperature range: LICAP’s ultracapacitor cells will operate reliably from -40F to +149F with no heating or cooling systems required.

• Voltage management: Fully integrated passive voltage management system ensures each cell in the module is operating at near equal voltage to the other cells, which is a requirement for long life.

• Multi turbine compatibility: The same ultracapacitor module is used for all battery box versions in both 20Nm and 30Nm turbines using the existing battery weld studs for mounting.

• Robust design for harsh environment: Laser weld bus bar connection for high reliability and best performance. IP20 injection mold enclosure for additional protection.

• Safe and Non-toxic: LICAP ultracapacitor modules can be completely discharged to 0V during turbine maintenance with no adverse effects. LICAP products are RoHS compliant and contain

no toxic materials.

• Excess Capacity: The energy stored in the ultracapacitors is sufficient to complete a total of 3 full blade pitches with no recharge required, even at end of life.

www.licaptech.com

CapacitanceRated 500FTolerance -0/+20%

VoltageRated 16V DCSurge 17V DC

ESR ESR (DC) - maximum initial 1.8mΩ

TemperatureCharacteristics

Operating temperature range -40℃ to +65℃Storage temperature range -40℃ to +70℃

Module Specifications

CCU Specifications

Input Voltage 230Vac +/- 10%, 299Vac max, @ 1A Frequency 47Hz to 63HzOutput Current 3A maxPower 180W max

Voltage 20Nm w/4 modules 58V, 30Nm w/6 modules 87V

CommunicationPhysical layer, isolated RS485, 9600 baud 2 wire, protocol compatible with GE 20Nm and 30Nm battery charging systems

Voltage Sensing Individual module and total stack sensing