Innovative approach to Wind Energy
At Flag Turbines, our goal is simple:
Energy Everywhere, for Everyone.
Flag Turbines has developed a new kind of wind turbine: slow-turning, able to catch wind from any direction, and built to be lower and less intrusive in the landscape than conventional turbines. That makes it a natural fit for farms, rural communities and businesses. Its patented blades adjust as they turn, so it is designed for gusty, changing wind, generating clean power right where it is used.
MODULAR AND SCALABLE WIND ENERGY
Flag Turbines delivers modular wind power through a patented design that captures wind from any direction. Systems can be scaled to suit different energy demands, from a single turbine to multiple units on one site.
Flag Turbines is not designed to replace large conventional turbines everywhere. It is built for the places they struggle: farms and industrial sites, on-site generation, turbulent or space-constrained locations, remote energy systems and, in time, floating offshore wind.
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.
The biggest saving comes from using the power on site. Paired with battery storage, our turbines store what you don’t need now and supplies it when you do, so more of every kilowatt-hour replaces electricity you would otherwise buy from the grid.
SUSTAINABLE BY DESIGN, RESILIENT BY SUPPLY
Our turbines are designed around widely available and recyclable materials, avoiding rare-earth magnets and large, solid composite blades. This reduces reliance on constrained or geographically concentrated supply chains while supporting greater sourcing flexibility and long-term supply security. Their modular construction is designed to simplify maintenance, component replacement and eventual recycling.
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 and resilient renewable energy supply.
Use cases
Compact, quiet turbines for rooftops and commercial sites, designed to work in the turbulent, shifting airflow around buildings and generate power where it is used.
Community and Microgrid Energy
Local generation for community schemes, islands and microgrids, working with battery storage and solar to keep power close to where it is used.
Defense & Off-Grid Sites
No large concrete foundations, so turbines can be deployed, dismantled and moved. Suited to remote, temporary and defense sites with no grid connection.
Wind and Solar Power
Wind often blows when the sun doesn’t, overnight and through winter. Add a battery and more of the power you generate is used on site, all year round.
Cut Diesel Generator Use
For sites that rely on diesel generators, a turbine with battery storage can cut fuel use, running hours and maintenance, keeping the generator for backup.
Farms and Rural Businesses
Low height and simple to maintain from the ground. A turbine generates electricity day and night, whenever the wind blows, cutting the power bills of a working farm.
