Biochar tenders
Biochar is charcoal made by heating biomass with little oxygen and then applied to soil or used in materials, where much of its carbon stays locked away for a long time. It is one of the most widely delivered forms of durable carbon removal, and public buyers are starting to tender around it: research into its effect on soils and crops, trials on public land and highway earthworks, supply of biochar for parks and tree planting, and inclusion of biochar in carbon removal purchase programmes.
Biochar notices tend to be precise about the material. Expect specifications on feedstock, production temperature, carbon content, contaminants and certification against a recognised biochar standard, and for removal purchases, the methodology used to calculate the permanent carbon fraction. Research and trial tenders ask for experimental design, monitoring periods and soil science expertise.
Biochar tenders are rare, so this page also shows recently closed ones. They indicate which public buyers are testing the material, and in which applications, before larger purchases follow.
3 open tenders match this topic today. 3 of those shown close within 30 days. Recently closed notices are listed after the open ones. Deadlines come from the source notice; confirm against the official document before you submit.
Open biochar tenders
Study of Carbon Sequestration and Soil Health Impacts within Highway Earthworks
Municipality· GB
A local highways authority seeks a research study on carbon sequestration and soil health impacts from incorporating biochar, mineral weathering, and mycorrhizal fungi into highway earthworks on the A382 Link Road project. Bidders should have expertise in soil science, carbon sequestration, highway engineering, and environmental research.
Study of Carbon Sequestration and Soil Health Impacts within Highway Earthworks
Municipality· GB
A local authority seeks a research study on carbon sequestration and soil health impacts from incorporating biochar, mineral weathering, and mycorrhizal fungi into highway earthworks on the A382 Link Road project. Bidders should have expertise in soil science, carbon sequestration, highway engineering, and environmental research.
Study of Carbon Sequestration and Soil Health Impacts within Highway Earthworks
Municipality· GB
A local highway authority seeks a research study on carbon sequestration and soil health impacts from incorporating biochar, mineral weathering, and mycorrhizal fungi into highway earthworks on the A382 Link Road project. Bidders should have expertise in soil science, carbon sequestration, highway engineering, and environmental research.
Recently closed
Closed in the last 12 months. Buyers often repeat a purchase on a similar cycle, so these show what the next notice is likely to ask for.
Feasibility study on biochar production from agricultural residues and carbon credit opportunities in cotton-based farming systems in Tajikistan
organisation
This tender procures a feasibility study on biochar production from agricultural residues and carbon credit monetization in Tajikistan's cotton farming systems. Bidders should have expertise in agricultural biochar technology, carbon markets, and agronomy in Central Asia.
Plant engineering design services – Strategic partner for design, establishment, and operation of a biochar facility
organisation· SE
a Swedish housing cooperative seeks a strategic engineering partner for design, establishment, commissioning, and operation of a biomass pyrolysis biochar facility in Sweden with future expansion options. Bidders must have expertise in pyrolysis plant engineering, project management, and long-term operational support.
Plant engineering design services – Strategic partner for design, establishment and operation of a biochar facility
organisation· SE
a Swedish housing organization seeks a strategic engineering partner for design, establishment, commissioning, and operation of a biomass pyrolysis biochar facility in Sweden with future expansion options. Bidders must have expertise in pyrolysis plant engineering, project management, and long-term operational support.
Frequently asked
Why do public buyers tender biochar?
To test its effect on soils and plant growth, to use it in landscaping and earthworks, and increasingly to buy the carbon removal it provides.
What do biochar specifications include?
Feedstock, production conditions, carbon content, limits on contaminants, certification against a biochar standard and, for removal purchases, the method used to calculate permanence.
Are biochar removal credits covered?
Yes, where a notice names biochar. Wider carbon removal purchases that list several methods appear on the carbon removal page.