BFG is one of the wind industry's most experienced and knowledgeable composites design and manufacturing partners. Our integrated network of factories across the globe offers wind turbine manufacturers cost-effective and flexible solutions for nacelle enclosures, spinners, and wind farm site parts.
BFG International's total business solution is built on more than 43 years of experience. This includes excellent design capability, cost-competitive manufacturing sites, and a dedicated field repair and maintenance service company for composite components.
At BFG, we deliver the full life cycle of services: conceptualization, modeling, iterative design development, materials and product development, testing, sampling, prototyping, and product serial manufacturing.
BFG is actively involved with many manufacturers of products for solar energy and electric vehicles.
Nacelle Enclosures
The nacelle is a housing that protects the electrical and mechanical equipment from the environment. Early nacelles were made of wood, which did not prove durable enough -- they required annual maintenance and did not hold up to extreme weather events. The next generation were made of galvanized sheet metal, but corrosion and stray currents meant they could not reach the 20-year life expectancy.
Vestas was the pioneer to introduce the composite nacelle. Once early design issues were resolved and durable gelcoats with good UV resistance were adopted, the composite nacelle became the industry standard.
Spinners
Spinners -- also called rotor covers, deflectors, hubs or hub covers -- are protective surfaces and aerodynamic cones that house the connecting elements of the blades to the low speed shaft, which transmits the energy of the wind to the dynamo. Inside the spinner is also the pitch control where the angle of attack to the wind can be optimized depending on the current electrical demand and wind speed.
The weights of these components are critical to determining the center of gravity and the degree of imbalance, and also affect the crane's ability to lift the loads. Today's nacelles are 80 to 140 metres above the ground or sea. The next generation will be almost 200 metres above the sea. Today's nacelles are the most durable to date and they are still improving.
Today BFG produces nacelles and spinners for Siemens Gamesa, General Electric, Hitachi, Nordex, and Leitwind.
BFG Wind Energy Capabilities
- Nacelle enclosure design and manufacturing
- Spinner and rotor cover production
- Wind farm site parts
- Over 43 years of composites experience
- Full life cycle services from concept to serial manufacturing
- Dedicated field repair and maintenance services
- Global network of cost-competitive manufacturing sites
- Partnerships with Siemens Gamesa, GE, Hitachi, Nordex, and Leitwind