Innovative approach to Wind Energy
At Flag Turbines, our goal is simple: Energy Everywhere, for Everyone.
We provide flexible, scalable vertical-axis wind turbines (VAWTs) that meet diverse energy needs, delivering sustainable solutions for communities and businesses. Our turbines are designed to offer lower manufacturing, installation and maintenance costs, making renewable energy more accessible and cost-effective.
MODULAR AND SCALABLE WIND ENERGY
Flag Turbines is uniquely positioned to deliver modular wind power solutions through our patented design, which captures wind from any direction. Our turbines are designed for decentralized locations, including urban, rural and floating environments. This flexibility allows systems to be scaled to suit different energy demands and applications, providing efficient renewable energy generation across a wide range of settings.
ENERGY EVERYWHERE, FOR EVERYONE
Flag Turbines products are designed to reduce manufacturing, installation and maintenance costs compared with traditional propeller-style turbines. Their low-speed, high-torque design enables operation across a wide range of wind conditions and locations, without the need for large, site-specific concrete foundations.
We are dedicated to making Energy Everywhere, for Everyone a reality through our innovative, accessible energy solutions.
Designed for Sustainability and Circularity
Our turbines are designed around widely available and recyclable materials, avoiding rare-earth metals and large carbon-fiber composite structures wherever possible. Their modular construction is designed to simplify maintenance, component replacement and eventual recycling. Wind also complements solar naturally, generating at different times of day and often more strongly through autumn and winter. Coupled with battery storage where appropriate, the three technologies can provide a more balanced and resilient year-round renewable energy system.
Power and Wind Speed Relationship
Our patented, slow-rotating, direct-drive, high-torque turbines are engineered to excel in turbulent, omnidirectional wind conditions. Capturing wind from 360° makes them well suited to challenging environments where traditional propeller-style turbines can be less effective. Our turbines use a blade surface area typically around four to five times greater than a conventional horizontal-axis turbine of comparable power, together with a patented variable-pitch mechanism that continuously adjusts each blade angle throughout every rotation. As the blade moves through the wind, its angle is optimized to generate lift and torque, then adjusted on the returning side to minimize drag. This is similar to adjusting a yacht’s sail during tacking and jibing to harness wind power efficiently.
The energy available in the wind increases with the cube of wind speed. This means that doubling the wind speed does not simply double the available power. For instance, increasing wind speed from 10 km/h to 20 km/h increases the available wind power by a factor of eight. Tripling the wind speed increases it by a factor of twenty-seven, and quadrupling it by a factor of sixty-four. Actual turbine output is ultimately limited by the turbine’s rated capacity and control system.
This helps explain why wind can complement solar so effectively. There will be calm, sunny periods when solar generation is stronger, but moderately windy periods can contribute substantial amounts of energy, particularly overnight and through autumn and winter when solar generation is lower. Combined with solar and battery storage where appropriate, wind can therefore play an important role in providing a more balanced year-round renewable energy supply.
Use cases
Urban and Built Environments
Microgrids and Distributed Energy Systems
Defense: Off-Grid Applications
Supplementing Solar Power
Reducing generator dependency
