One evidence framework. Sector-specific methodologies.
WATTii applies shared controls for source integrity, timestamping, versioning and human approval, then uses technology- and jurisdiction-specific calculation modules.
Applications designed for every asset type
Models, indicators and evidence workflows specific to each technology, using one evidence framework, sector-specific methodologies.
Solar
- Plant production and performance
- Load factor and availability
- Avoided emissions (requires complete carbon inputs)
- Component traceability
- Methodology
- Sector-specific — Solar
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Wind
- Wind farm production and performance
- Load factor and availability
- Avoided emissions (requires complete carbon inputs)
- Component traceability
- Methodology
- Sector-specific — Wind
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Hydroelectric
- Plant production and performance
- Water resource management
- Avoided emissions (requires complete carbon inputs)
- Equipment traceability
- Methodology
- Sector-specific — Hydroelectric
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Biomass
- Unit production and performance
- Sustainable sourcing
- Avoided emissions (requires complete carbon inputs)
- Fuel traceability
- Methodology
- Sector-specific — Biomass
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Biogas and biomethane
- Unit production and performance
- Gas quality and traceability
- Feedstock origin and sustainability
- Avoided emissions (requires complete carbon inputs)
- Methodology
- Sector-specific — Biogas and biomethane
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
E-methanol
- Electricity origin and temporality
- CO₂ origin and utilisation
- Yields, allocation and life-cycle boundaries
- Process and feedstock traceability
- Methodology
- Sector-specific — E-methanol
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Waste-to-energy and gasification
- Waste tonnages and characterization
- Yield, syngas and energy recovery
- Allocation and life-cycle boundaries
- Feedstock traceability
- Methodology
- Sector-specific — Waste-to-energy and gasification
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Hydrogen
- Unit production and performance
- Hydrogen traceability
- Origin of electricity and feedstocks
- Avoided emissions (requires complete carbon inputs)
- Methodology
- Sector-specific — Hydrogen
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Nuclear
- Plant production and performance
- Load factor and availability
- Fuel traceability
- Avoided emissions (requires complete carbon inputs)
- Methodology
- Sector-specific — Nuclear
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Decarbonized mobility
- Energy delivered and performance
- Charging and usage traceability
- Avoided emissions (requires complete carbon inputs)
- Regulatory reporting mapped/assessed when evidenced
- Methodology
- Sector-specific — Decarbonized mobility
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Data centers
- Measured consumption and PUE
- Low-carbon electricity allocation
- Temporal and geographic matching
- Double counting prevention
- Methodology
- Sector-specific — Data centers
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS quantity
- Not calculated
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Nature-based track
Nature-based projects are not energy assets and have no energy-WTS issuance path.
Reforestation and nature-based carbon
Nature-based projects are not treated as energy assets. They require a dedicated carbon methodology addressing baseline, additionality, leakage, permanence, reversal risk and independent verification.
A WTS is a quantified energy-evidence unit calculated from eligible energy under the versioned BP13 methodology and recorded in the WATTii registry. It is distinct from the Proof Score, the assurance level, avoided tonnes of CO2 and economic value.
Energy WTS issuance is not applicable. A nature-based record cannot call the energy-WTS workflow.
- Planted areas and species
- Growth and survival monitoring
- Baseline, additionality, leakage and permanence
- Reversal risk and independent verification
- Methodology
- Dedicated nature-based carbon methodology
- Version
- Not specified
- Jurisdiction
- Not specified
- Intended claim
- Not specified
- Applicability status
- Not assessed
- Assurance status
- Not independently verified
- Last review date
- Not specified
- WTS issuance
- Not applicable
- Avoided tCO2e
- Not calculated
- Economic value
- Not calculated
Shared controls, sector-specific methods.
WATTii applies shared controls for source integrity, timestamping, versioning and human approval, then uses technology- and jurisdiction-specific calculation modules.
Evidence framework
one evidence framework, sector-specific methodologies
Integrated specificities
Models adapted to each technology, jurisdiction and intended claim.
Explicit assurance status
Assurance is a separate recorded status. Alignment is mapped/assessed when evidenced.
Informed decisions
Indicators may support analysis and reporting. They are not a promise of performance, financing or value.
Document your assets and prepare evidence for review.
WATTii supports energy-evidence workflows under human control.