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For renewable energy system integrators, the wind generator supply chain is at the very heart of a successful project. The choice of components and effective sourcing is not just dependent on costs, but the entire reliability of a system over its lifetime. As a wind turbine manufacturer and system solution provider, we understand the challenges faced by system integrators. Here are some quick and handy tips for building a resilient supply chain of wind power.
Prioritize Technical Capability and Certification
Technical competency, more importantly still, is vital for a secure supply chain. When considering wind generators you should ensure that the turbine is certified to relevant international standards, such as IEC 61400 series for power performance and grid compatibility testing, along with CE for the EU market, and either UL or CSA if operating in North America.
Beyond the necessary certification standards, take a look at test reports in relation to power curve accuracy under different wind speeds (typically from 3-25 m/s), noise emission levels (target is 55dB at a distance of 10m) and survival wind speed (minimum of 50-60m/s for storm proof systems). Suppliers who maintain an in-house R&D facility capable of altering RPM, power rating and phase configuration in line with a specific projects requirements have greater quality control and offer more tailored projects.
If operating as an integrators, the ability to provide wind turbines with integrated charge controllers and compatibility with existing solar inverters could be invaluable.
Build Flexibility into Your Supply Chain
Reliability is reliant on flexibility. Work with suppliers who retain stock of the more common sizes in addition to being willing to accommodate express or repeated orders. If looking at bespoke systems, ensure you confirm lead times for custom specifications such as bespoke tower height or configurations, and obtain realistic delivery dates from suppliers who will then keep you informed.
Consider availability of parts and components throughout your supply chain, as wind generators require different parts such as controllers, bearings and blades from various suppliers. Vertically integrated suppliers that can offer a complete manufacturing process, including casting, CNC machining and final assembly can alleviate some time constraints with regard to the availability of materials, and simplify logistics. If operating as an integrators, by sourcing wind turbines and control systems from a single supplier you eliminate compatibility issues.
Emphasize After-Sales Support and Spare Parts Availability
The service of a supplier does not end at the time a wind turbine is delivered. When operating as an integrators, support is key to customer service and system reliability.
As such suppliers should offer comprehensive documentation—user manuals, technical specifications and wiring diagrams help minimize the time and risk of mistakes during the installation process. Providers who can offer remote diagnostics support and a quick technical response reduce downtime should any issues arise.
Availability of parts is key to long term operational reliability. You should determine that a supplier can offer replacement parts (controllers, bearings, blades) for the full projected life cycle of the turbine. A supplier with available inventory can ensure that urgent requests are resolved quickly.
An ability to provide training in installation, commissioning and maintenance can help a system integrators develop in-house expertise.
Choose a Partner Who Understands System Integration
A wind turbine must be considered to fit into a bigger energy system, together with other PV-and Batteries, including its controls. A supplier for a wind turbine, who considers the whole, can advise you correctly.
Examples of support may include charge controller compatibility for optimal battery charging and system protection, correct voltage and frequency match with PV inverters and integration within an energy management system. Suppliers experienced in integrated system design can offer guidance on component selection and appropriate systems. By opting for this level of integration support from a supplier, you can minimize compatibility problems within the final system.
As a supplier of both wind turbines and integrated solutions, we offer fully integrated wind-solar hybrid systems capable of meeting required loads and specifications efficiently. Our systems can offer a broad array of solutions for energy independent needs.
