Silvers (chaff) from Virgina mallow (SIDA) plantation yield harvested from December to late March with field maize chaff-cutter (machine for mowing and chopping maize) contains moisture from 15 up to 30 percent. The energy value should reach 10 to 15 kJ/kg.

It is a ready fuel for biomass stoves with feeders adapted to silvers (chaff). May also be used as a finished product to the co-combustion with pulverized coal, if there is a posibility for storing and mixing ingredients.

Advantage of co-combustion with pulverized coal is that during the coal combustion emission of the nitrogen oxides and sulfur into the atmosphere is decreased.

Harvested silvers of pensylenian malva aren’t composting during storage in open air, because of the wood – cellulose physiology structure, witch doesn’t absorb humidity from the atmosphere. Only the skin of plants partially absorbs moisture, but it represents a negligible percentage of the crop.

Sida is also used as a fibrous plant. Due to the high content of cellulose and hemicellulose comparable with spruce or pine it can be used in the pulp and paper industry, which confirms the opinion of Pulp and Paper Institute in Łódź.

Additionally, chaff from Sida can be a raw material for the production of agglomerated materials (wood panels). Below there is a picture of such a panel made by the Institute of Wood Technology in Poznań.

Sida may be burned in the stoves for pellets, briquettes or wood chips, but also an optimally efficient biomass feedstock for biogas plants. No harmful elements in its construction does not cause impact for quick wear of the stoves and often maintenance.