PELLET: an ECOLOGICAL system for RENEWABLE energy

Pellet is a very cheap fuel
Pellets have an heating power near to 4,8 kWh/kg, gas oil 9,6 kWh/dm3 and methane generates 9.5 kWh/m3. For example, if you need energy for 38.400 kW/h to warm an house, you can use gas olio for 4.000 dm3, methane for 4.160 m3, or pellets for 8.080 kg, equal to 12,43 m3 volume. Involving one load for year, you need a silo with dimensions 3x2x2 m. If the available space is smaller, with a volume of 2x2x1.5 m you can warm your house for whole Winter with only two silo fillers. You can use a smaller silo, but you will reload it most frequently. The cost for pellets heating is very cheaper than gas oil or methane. The fossil fuels (gas oil and methane) are burden with national pollution taxes and their prices generally are linked to petroleum international price trends. Pellets price depends essentially from production costs and transport; it's burden with a low V.A.T. for his low ecological effects. You can save your money also with different way of supplying. Using a silo, the unit price decreases furthermore. Changing from fossil fuels to pellets, you can axe operating to 30%, and you can gain to 50%.
After their drying, wood residuals are milled up till dust. Next, they pass through a press with of cylindrical extruder, pushed by internals rollers. Some districts provide incentives for pellets plants installation, granting contributions equal about 30% of the plant net price.