Vertical Axis Wind Turbine


SUMMARY: The strategy is a patented innovation (Patent Registration Nr. US8.282.236B2) for the optimized operation of Vertical Axis Wind Turbines (VAWT) that can be utilized in multiple scales to achieve an Energy-Plus balance in products and buildings, as illustrated in two projects: the Self Sustaining Street Light and Turbine-House

PROBLEM SPACE: "Wind power generation is on the verge of reaching a peak level of importance as a clean, renewable energy source. In the US, wind energy electricity generation increased by 20% in 2013 [National Renewable Energy Lab]. However, the total worldwide installed wind capacity by mid-2014 will still only generate around 4% of the world's electricity demand. [Source: World Wind Energy Association, Half-Yearly Report 2014]. In addition, fossil fuels still make up approximately 80% of global energy consumption [World Energy Council, 2013]. The result of which has led to an increase in global CO2 levels, climate change, and pollution.

In response to these ongoing energy challenges, wind-powered street furniture and housing have very little impact on the environment through their use of renewable energy sources and due to the fact that they virtually eliminate the need for trench work and cabling. In fact, with the patented augmented geometry of the VAWT case work, the House and Street Light can create an energy surplus. The holistic strategy of integrating efficient wind turbines into multiple urban and product scales has the capacity to allow for off-the-grid energy plus living, reducing the need for fossil fuels while helping to maintain an emission-free environment."

SOLUTION: "This fully integrated solution balances energy efficient components for reduced consumption with maximised energy generation and significantly improves upon existing designs. VAWT provides the ability for wind energy harnessing from any wind direction, increased by the introduction of multiple, phase-offset rotor stages. The patented strategy enables amplification of wind velocities through a three-dimensional converging funnel section that increases energy output by over 250%. It raises the rotor power coefficient while providing low cut-in wind speed and start-up requirements for efficient and extended operational hours. This strategy can be scaled for numerous applications.

The geometry is designed to house PV cells in addition to VAWT. Product and building applications can be installed virtually anywhere, provided that it is in a location that receives ample wind. Both devices are designed to be pre-fabricated and configurable to the site. In response to climate and location, the building envelope can be configured to either facilitate solar gain or to prevent the overheating of the interior. Similarly, both the Street Light and the House have a solar-facing PV top, specifically angled to maximise solar exposure for optimum energy generation. Numerous energy storage and hybrid building technologies have been designed to complement efficient operation."