Work with us as a Subsurface Biomass Carbon Removal and Storage supplier

We've combined requirements from our modular protocol framework outlining everything you need to be validated as a Subsurface Biomass Carbon Removal and Storage supplier.

We provide further support to compile a compliant validation package on our platform, Isometric Certify.

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Overview

Where do requirements come from?

Isometric Standardv1.5.1->Subsurface Biomass Carbon Removal and StorageProtocolv1.1->Biomass Storage in Subsurface MinesModulev1.0->

List of Subsurface Biomass Carbon Removal and Storage requirements

Table of contents

Environmental & social impacts

How will your project affect people and nature, and how will you manage any risks that arise.

Pathway-specific

How will your project meet pathway-specific process requirements.

If biomass is mixed into the Project backfill material, Projects must demonstrate the composition and geotechnical efficiency of the backfill compared to materials that would have been utilized in the absence of the Project.

Projects must provide a description of all monitoring methods, equipment, detection limits and any applicable standards that will be used within the Project.

If a seismic monitoring program is required by relevant regulatory authorities, Projects must outline the details of the seismic monitoring program. The monitoring plan must include deeper wireline or cemented subsurface geophones. This should be combined with a at/near ground level stations as part of an integrated detection strategy.

Projects must describe baseline measurements collected prior to the storage of biomass within mine chambers. Gas detections may be traced to quantify how much gas production is due to biomass decomposition or mining activities. If no such methods are used, Projects must consider all increases in GHGs as reversals.

Projects must provide a theoretical or empirical justification demonstrating that the monitoring system can detect CO2 reversals, as well as CH4 and N2O emissions (if relevant), equivalent to the decay of 1% of the total stored biomass mass over a 20-year period.

Projects must describe how gas concentrations and airflow outside mine chambers utilised for storage of biomass will be monitored.

If projects use sealing barriers between different mine chambers, projects must undertake ongoing monitoring within each chamber utilized for biomass storage.

If groundwater infiltration into storage chambers occurs, Projects must: Calculate groundwater flux rates through storage chambers; Measure or calculate dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC) production from stored biomass under relevant conditions; Calculate potential DOC and DIC export rates and cumulative carbon loss over crediting timescales and demonstrate how these will be deducted from net removal calculations; Implement groundwater monitoring systems to detect intrusion and measure DOC and DIC concentrations downstream of storage areas.

Projects must provide a description of how biomass will be stored within subsurface systems at the Project mining location.

Projects must describe how gas concentrations within storage chambers will be monitored.

Projects must outline and describe how geological and/or structural seals will be implemented between storage chambers and existing mine infrastructure.

Projects must describe the periodic sampling and characterization of biomass and slurry mixtures prior to emplacement.

If a Project utilized an engineered backfill material for storage and sealing, Projects must provide a full description of the backfill composition.

Projects must provide a plan for testing the sealing integrity of sealing barriers between storage chambers, in conditions representative of the storage site.

If the Project requires additional excavation of land compared to what would have occurred in the absence of the Project activities, Projects must quantify the baseline carbon stocks and account for any loss of carbon stocks. Such excavations may be for the purpose of providing additional geological material, such as mud, as a binder/ slurry feedstock that is mixed with biomass prior to emplacement and storage. Increases in soil organic carbon are not considered creditable removals under this Module.