Contractors World

The online digital publication for construction, demolition, mining and quarrying industries.

  October 2009

Buyers Guide
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Wood – the new biofuel       Efficient Solutions In Demand [cont]

SWITZERLAND - Recycling waste wood into energy

he wood-chip bucket on the Cat 966H has a capacity of 12 cubic metres – it’s so huge that a camera is needed to safely operate the loader. Using waste wood to fire a power station is extremely environment-friendly. First of all it’s a renewable resource; it’s also a by-product that would not be used otherwise and, best of all, it is completely CO2 neutral.

Tegra, a Swiss energy company, uses it to produce 350,000 megawatt hours of energy annually. For their ground-breaking initiative, they won Switzerland’s prestigious Watt d’Or award. Cat machines are part of the success-story.

Tegra was founded in 2004 and two years later the first boiler of their wood-waste-fired steam-electric generating station went online. In 2008 a third one started to produce energy. On average, the three boilers generate 128,000 megawatt-hours of electricity, corresponding to the annual consumption of 27,200 houses, and 220,000 megawatt-hours of heating energy, equivalent to the annual consumption of 23,000 houses. The plant also delivers processing steam and electricity to a nearby sawmill and a chemical plant to help them to minimise their use of fossil fuels.

SWITZERLAND - Recycling waste wood into energy

{top) For Tegra, the Swiss energy company, the wood-chip bucket on the Cat 966H has a capacity of 12 cubic metres – it’s so huge that a camera is needed to safely operate the loader.



[cont] .



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