UNIQUE WOODEN TOWERS
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UNIQUE WOODEN TOWERS

Our innovative line of wooden towers is being developed to fit all of ourwind turbines. Replacing standard steel towers with wooden ones greatly reduces the carbon footprint of our products. Wooden towers are stronger and lighter than steel towers making them easier to erect and more environmentally friendly to transport. Furthermore, while steel towers typically magnify vibrations, the natural fibers in wooden towers reduce them. InnoVentum wooden towers are the result of long-term collaboration with leading universities in Sweden and France in the field of wooden construction. The...

Installed Base Validated through a growing international installed base: currently 15 installations across Sweden, France, Holland and the Philippines performed in 2011-2015 Sweden Holland

Installation Examples

Dali XII Mörbylånga, Sweden Dali XII Rotterdam, Holland

Dali XII Senoren, Sweden Rooftop installation, Dali VII Karlskrona, Sweden

Dali XII Borgholm, Sweden Dali XII Gassin, France

Dali XVI and Dali XII Installations Mörbylånga, Sweden

Dali XVI and Dali XII Installations, Mörbylånga, Sweden

More than 6000 engineering hours were put in the development of InnoVentum wooden towers. All models were tested in 1:10 scale prototypes for design validation The Dali XII tower was tested full scale in-house for the measurement of all critical parameters and the initial patent application was submitted. The Dali XII tower was further tested on site. After 12 months of testing, a second generation of the Dali XII was developed resulting in an international patent application early 2012. Since then there were multiple installations performed across several countries with excellent...

Design wind gust Design for Class Calculations Safety Factor Wooden Frame Height Metal Tower Height Tower Footprint Max Horizontal Load Max Torque Generator Weight Expected Lifetime Maintenance Material properties Dali XII: Tower Specifications 60 m/s I, II & III wind turbine according to BS EN 61400-2:2006 Performed according to Eurocode 5 All calculations are performed in security class 2, wind loads at a Feld category 0 (sea border) and an durability class 4a (outdoor). 10 m for downwind generator / 11,5 m for upwind generator 1,5 m is needed for downwind type generator Triangular (2,5 m...

The Dali XII wooden tower allows for safe and efficient mounting of6to8 PV panels delivering from 14001 kWh annually in addition to the wind turbine energy production. Wind and solar power harvesting technologies are highly complementary (day -night, summer-winter) providing green energy day and night, all year round. - calculated at the latitude of Malmo

Design wind gust Design for Class Calculations Safety Factor Wooden Frame Height Metal Tower Height Tower Footprint Max Horizontal Load Max Torque Generator Weight Expected Lifetime Maintenance Material properties Dalifant XX: Tower Specifications 60 m/s I, II & III wind turbine according to BS EN 61400-2:2006 Performed according to Eurocode 5 All calculations are performed in security class 2, wind loads at a Feld category 0 (sea border) and an durability class 4a (outdoor). 13,8 m 6 m Octagonal (1,46 m each side), 10,3 m2 36 000 N (Thrust) 22 800 N (Moment) Designed to support max 2 000...

Proposition in the Market Use of wood results in a number of practical, a

Practical Benefits

Modularity of Dali XII Volume of wood of Dali XII: 1,2 m Modules no longer than 2 m The “tower kit” is stackable and can be transported on a trailer and stored easil

DIY is Possible The Dali XII tower can be assembled in just a few hours

Possibility to Erect Dali XII without a Crane using electric or manual winches

The novel screw foundation revolutionizes the installation process. It is: FAST: installed in hours instead of weeks for a standard concrete foundation. GREEN: for the Dali XII, it causes 7 times less CO emission than a concrete foundation, allows for significant water saving (more than 380 litres!) and requires no soil movement. UNIQUE: The screw foundation is only possible because of our multi-leg designs and is not applicable to a steel tubular tower. It is the foundation of choice for both tower designs : Dali XII and Dalifant XX.

However, if it is necessary to use a concrete foundation, our tower solutions require considerably less (2 and more times less) concrete than a steel tubular tower. For example, the installation of a 2 kW turbine requires: > 7 m3 for a steel tubular tower installation <3m3 for a Dali XII installation Same proportion is valid for the Dalifant XX tower.

Timber used for InnoVentum’s wooden towers is proven to reduce noise of small wind turbine installations. Since the velocity of sound waves in wood is low, wood is one of the best sound insulators. While a conventional stand-alone steel tower amplifies the noise through a hollow tube construction, the Dali and Dalifant multi-leg wooden towers absorb this vibration, making the operation of the turbine much more silent.

The in-house maximum load test at the Lund Technical University The durability of the solution was confirmed by carpenters with 20+ years of experience Installation at one of the windiest spots on the windiest island in Sweden -Oland - withstood several storms over winter months in 2011-2012

Design Focus and Art Connection InnoVentum creates towers that allow to bring small wind turbine installations to a totally new aesthetic level From “Not in My Back Yard” thinking to “Give My Garden a Twist!” by installing a small wind tu

Even our largest towers are unobtrusive for the landscape Dalifant installation compared to a large-scale wind turbine:

Environmental Benefits

Wood & CO2 Wood has the unique ability to capture and store CO2 while reducing carbon sources. There are 2 ways to reduce CO2 in the atmosphere:   reduce emissions or “carbon sources”   remove CO2 and store it - increasing “carbon sinks” Wood has the unique ability to do both. Each cubic metre of wood saves a total of 2 tons of CO2. Every cubic metre of wood used as a substitute for other building materials reduces CO2 emissions by an average of 1,1 ton CO2. If this is added to the 0,9 ton of CO2 stored in wood, we get a total of 2 tons CO2 Source: Tackle climate change,