Biomass Products

Growing awareness about climate change and rising fossil fuel prices have spurred an increase in worldwide demand for renewable fuels. Because of their firm capacity, the woody biomass fuels that Enviva supplies for energy generation are one of the viable renewable alternatives to coal and other fossil fuels. Biomass delivers efficient, reliable, stable energy to customers around the clock.


Description

Enviva Wood Pellets are energy dense, low moisture, uniformly-sized wood fuels.

Wood fiber procured by Enviva falls into the categories below:

Low grade wood fiber

Trees or wood that are unsuitable for or rejected by sawmilling and lumber industries because of small size, defect (e.g. crooked or knotty), disease or pest infestation.

 

 

Tops and limbs

The parts of trees that cannot be processed into lumber.

 

 

 

Thinnings

Harvests that promote the growth of higher value timber by removing weaker or deformed trees to reduce competition for water, nutrients and sunlight and/or trees removed to improve wildlife habitat.

 

 

Mill residues

Chips, sawdust, and other wood industry byproducts.

 

 

 

The wood is milled, dried and pelletized in a specialty press. During the extrusion process, the lignin in the wood plasticizes forming a natural “glue” that holds the pellet together after production.

Product Applications

  • Co-firing in pulverized coal and fluidized bed energy plants
  • Biomass energy plants
  • Combined heat and power plants
  • Industrial-scale public and private heating

Benefits

  • Low carbon
  • Energy dense
  • Easy to store and transport
  • Efficient, reliable, and scalable combustion

Additional Benefits of Wood Pellets

As an energy-dense, uniform fuel made from high-quality wood materials, wood pellets offer a range of advantages:

  • Wood pellets are efficient as a source of energy—they are reliable and available 24 hours a day, 7 days a week.
  • On an energy content basis, wood pellets have significantly lower SOx emissions than fossil fuels and unprocessed woody materials.
  • Typically, wood pellets have a calorific value of about 17.5 MJ/KG vs. 10.9 MJ/KG for non-pelleted, non-dried wood.
  • With a very low-moisture content (5–7 percent vs. 40–60 percent for non-pelleted wood) and low ash (1–2 percent vs. 5 percent for non-pelleted wood) wood pellets ship in standard dry bulk vessels. This maximizes economic efficiency and is environmentally preferable because such vessels can be used to ship freight on the return trip as well.
  • Wood pellets are uniform and homogenous, making them easily transported.