Biomass Energy in the South
Clear Standards Needed for Emerging Fuel Source
As the nation looks for renewable alternatives to fossil fuels, the energy contained in trees, grasses and other plants is emerging as a power source for cars, trucks, electric utilities, and heating systems. This new industry is starting to take off in the South, a region known for its vast tracts of forestlands.
But without proper safeguards and clear definitions of what constitutes a renewable energy source, the use of biomass could backfire. Mature forests are at risk of being converted into energy plantations and valuable wetlands are being clear cut, harming our water and wildlife and increasing heat trapping emissions linked to climate change.
Increased Demand for Wood Pellets
In response to increasing demand from Europe, the wood pellet industry is focusing on sourcing wood from the Southeastern United States. Much of this wood is whole trees that are clear cut and hauled to pellet facilities for eventual export to Europe. The production capacity (2,400,000 dry tons/year) of the four operating Enviva wood pellet plants in North Carolina and Southeast Virginia, as well as the proposed plant in Hamlet, North Carolina, will require harvesting approximately 70 square miles of forests each year.
Keep Carbon Pollution in Check
America's forests serve as carbon "sinks" that absorb 12 percent of the heat-trapping carbon dioxide emissions the U.S. pumps out each year. Burning trees to generate electricity releases this CO2 and, in fact, can produce more carbon emissions per megawatt than burning coal. Even if trees cut down for energy production are replanted, the climate impacts may be serious.
A 2015 Spatial Informatics Group analysis (pdf) commissioned by SELC found that the net lifecycle emissions of heat trapping carbon dioxide from the burning of wood pellets from the southeast U.S. and heavily reliant on hardwood forests would be 3.4 times higher than continued use of coal over 100 years. An updated analysis in 2017 also commission by SELC found that Drax, a power plant in the U.K. that has converted three of its coal-fired units to biomass, emitted 31.3 million tons of carbon dioxide from its burning of biomass between 2013 and 2016. The analysis predicted that Drax would emit another 12 million tons of carbon dioxide in 2017—an annual amount of carbon dioxide emissions approximately equal to the U.K.’s total annual goal for reducing carbon emissions.
A 2012 study (pdf) jointly commissioned by SELC and the National Wildlife Federation found that wood is not an inherently carbon-neutral energy source, as the power industry has claimed.
In addition, a 2013 study (pdf) also commissioned by SELC and the National Wildlife Federation found that rapid development of woody biomass energy facilities in the Southeast U.S. has large implications for regional land cover and wildlife habitat.
Ensure Sustainable Sourcing
To help protect the South's natural resources, SELC is calling for clear standards that:
- restrict the use of whole trees and prevent the conversion of native forests into energy crops;
- keep national forests off-limits to biomass extraction, especially in the ecologically rich Southern Appalachians; and
- ensure protection of old growth forests, streams and wetlands, wildlife habitat, and other natural treasures.
Under such standards, acceptable bioenergy sources would include:
- Wood waste, such as sawdust and other residue from lumber milling, and clean construction debris;
- Small diameter thinnings cut from existing pine plantations; and
- Other energy crops, such as switchgrass, grown on previously fallow land.
Protect Air Quality
Wood as an energy source may be renewable, but burning it produces harmful pollutants besides CO2, such as nitrogen oxides and microscopic dust particles that contribute to serious health risks. Wood-burning facilities must use the most effective pollution controls available.
Clean Air Carolina Challenges Air Permit for Enviva Hamlet Expansion in Richmond County
Statement from the Southern Environmental Law Center on the UK’s Coal Phase-Out and How That Could Affect Southern Forests
Citizens Group Challenges State Air Permit for Major Polluter Issued Without Public Notice or Community Input
SELC Statement on New Findings by UK Institute That Burning Wood Pellets From SE Forests Increases Heat-trapping Pollution
Proposed Enviva Wood Pellet Plant Raises Concerns of Increasing Carbon Emissions
New Analysis finds Burning Wood Pellets from U.S. Hardwood Forests Results in More Carbon Emissions than Burning Coal
New U.K. Report Marks “Beginning of the end” of Wood Pellet Boom and Harvest of Native Southern U.S. Forests for Pellets
Conservation Groups, Over 4500 Citizens Call for Public Hearing, Further Environmental Review of Wilmington Port Wood Pellet Project
Statement from SELC on New Report Assessing Threats to Southeast Wildlife
Study: Rising Demand for Southeast Trees Could Impact Wildlife Habitat
Biomass Biodiversity White Paper
Wood Pellet Industry Destroys Forests and Harms Birds of Conservation Concern
European Imports of Wood Pellets for “Green Energy” Devastating US Forests
Biomass Stack Emission Estimates for Drax power plants in the UK 2013-2017
New Analysis finds Burning Wood Pellets
Forestry Bioenergy in the Southeast United States: Executive Summary
Forestry Bioenergy in the Southeast United States
Biomass Supply and Carbon Accounting for Southeastern Forests