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Although in many areas of the world government funding is still required to support large scale development of energy forestry as an industry, it is seen as a valuable component of the renewable energy network and will be increasingly important in the future. [10] Growing trees is relatively water intensive. [citation needed]
The fastest-growing sector of German biofarming has been in the area of "Renewable Energy Crops" on nearly 500,000 ha (1,200,000 acres) of land (2006). [8] Energy crops can also be grown to boost gas yields where feedstocks have a low energy content, such as manures and spoiled grain.
Short rotation coppice (SRC) is coppice grown as an energy crop. This woody solid biomass can be used in applications such as district heating, electric power generating stations, alone or in combination with other fuels. Currently, the leading countries in area planted for energy generation are Sweden [1] and the UK.
SRF is the practice of cultivating fast-growing trees that reach their economically optimum size between 8 and 20 years old. Species used are selected on this basis and include alder , ash , southern beech , birch , Eucalyptus , poplar , willow , [ 1 ] [ 2 ] new varieties of Paulownia elongata , paper mulberry , Australian blackwood and sycamore .
Biomass (in the context of energy generation) is matter from recently living (but now dead) organisms which is used for bioenergy production. There are variations in how such biomass for energy is defined, e.g. only from plants, [8] or from plants and algae, [9] or from plants and animals. [10]
Intensive agriculture, also known as intensive farming (as opposed to extensive farming), conventional, or industrial agriculture, is a type of agriculture, both of crop plants and of animals, with higher levels of input and output per unit of agricultural land area.
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For comparison, coal-fired plants have an efficiency of about 37%. [43] BECCS also faces a question whether the process is actually energy positive. Low energy conversion efficiency, energy-intensive biomass supply, combined with the energy required to power the CO 2 capture and storage unit impose energy penalty on the system. This might lead ...