As a fuel, corn is very economical and ecological as it can be cheaply produced with
a minimal need for spraying and fertilization. It burns well, including the chaff
and straw without any further processing. After it comes from the combine harvester,
it needs minimal processing and does not pose high demands on agricultural workers
or machinery, etc.
An ecological bio fuel with a high energy potential (5 kW/kg approx.) and therefore
with great heating potential. Pellets are made by the high pressure extrusion of
sawdust or other usable biomaterial. Pellets are usually 6 mm in diameter and 25
mm in length.
Renewable sources of energy
Natural resources are those living or non living which humankind uses or can use
for their needs. Renewable resources have got the ability to renew partially or fully
on their own or with man's help. Non-renewable sources disappear when used. This
explains the difference between renewable resources (plants, wood, seaweed etc.)
which have got the ability to grow again and again (if used carefully) and non-renewable
resources (coal, oil, gas), which are finite.
Waste or 'left over' biomass is material which has been left behind when processing
organic materials. Mainly it is wood waste produced by forestry, wood industry, furniture
industry, paper industry and other wood related activities. The other group of waste
biomass is what is left from plants and from agricultural production and maintenance.
Waste biomass is also communal waste and waste from the food industry. Agricultural
waste biomass is also wet waist like manure. A specific group of biomass is 'purposely
grown biomass' which are different special plants and quick growing woods.