How WattCarbon Works
Aristotle measures DER performance, scores it for grid and carbon impact, and certifies verified outcomes as hourly EACs. Developers, utilities, and buyers all reference the same record.
Measure
Aristotle is WattCarbon's automated measurement and verification engine. It ingests trusted data, builds statistical baselines, and continuously quantifies energy savings, generation, and demand reduction delivered by distributed energy resources. The result is an independent record of what each asset actually produces, not what anyone claims.
Data Ingestion
Meter data flows in from utility AMI systems and device outputs. WattCarbon does not control the raw input data, ensuring structural independence from the outcomes it measures.
Baseline Modeling
Aristotle builds a statistical model of what energy consumption would have been without the DER intervention, using pre-intervention data and weather normalization.
Counterfactual Comparison
Actual post-intervention consumption is compared to the baseline. The difference is the verified savings or generation, quantified hourly.
Anomaly Detection
Automated quality checks flag data gaps, meter errors, and performance anomalies. Issues are surfaced for review before they affect certificates.
Continuous Monitoring
Unlike periodic audits, Aristotle verifies performance continuously as new meter data arrives. Savings are tracked in real time, not estimated after the fact.
Score
Verified savings are scored against two infrastructure benchmarks: GridScore and CarbonScore. Both methodologies are published openly through the OpenEAC Alliance.
GridScore
GridScore measures the percentage of a DER's monthly energy savings that occur during the top 10% of demand hours on the grid. It answers the question: when the grid needs help most, is this resource delivering?
GridScore methodology is published as open methodology by the OpenEAC Alliance.
CarbonScore
CarbonScore measures kilograms of CO₂e avoided per MWh of energy saved. It factors in local grid emissions intensity and, for fuel-switching assets like heat pumps, the fuel being replaced.
CarbonScore methodology is published as open methodology by the OpenEAC Alliance.
Certify
Once Aristotle verifies savings, the results flow into WEATS (WattCarbon Energy Attribute Tracking System), which issues hourly Energy Attribute Certificates. Each EAC represents one verified hour of DER performance.
Transact
The independent record is available programmatically. Utilities, program administrators, and buyers access verified data through a REST API. Each party references the same record rather than managing raw meter data or producing their own numbers.
REST API
Query verified savings, GridScore, CarbonScore, and EAC issuance data by asset, portfolio, or program. OAuth2 authenticated, OpenAPI documented.
Program Administration
Utilities and program administrators embed WattCarbon data into reporting workflows, program operations, and customer-facing dashboards.
Certificate Procurement
Buyers query available EACs by attribute, geography, and time window. Transfers and retirements are recorded on-chain in WEATS, producing auditable proof of procurement.
DER Program Builds
Energy program operators configure asset portfolios, M&V plans, and reporting rules through the WattCarbon API. The infrastructure handles measurement; they handle the program.
Standards
Independence is structural, not just claimed. WattCarbon does not control the raw data it verifies, charges based on capacity (not savings), and publishes all methodology openly. Aristotle's verification methods align with established industry standards.
IPMVP
International Performance Measurement and Verification Protocol. The global standard for quantifying energy savings.
ASHRAE Guideline 14
Statistical requirements for whole-building energy analysis, including CV(RMSE) and NMBE thresholds.
Uniform Methods Project
DOE protocols for determining energy savings from specific efficiency measures.
OpenEAC Alliance
Open methodology for GridScore and CarbonScore calculations. Peer-reviewed and publicly available.
Data
WattCarbon does not generate or control the raw data it verifies. This structural independence is fundamental to the credibility of the infrastructure.
Utility AMI Data
Interval meter data from utility Advanced Metering Infrastructure systems. The authoritative record of energy consumption.
Device Outputs
Telemetry from DER devices (inverters, batteries, smart thermostats). Used alongside AMI data for device-level attribution.
WattCarbon controls the M&V methodology, statistical models, and certificate issuance logic. It does not control meter hardware, utility data systems, or device firmware. Verified outcomes depend on data quality from upstream sources, which is why data provenance and anomaly detection are core infrastructure functions, not optional features.
Get your portfolio on the record.
Enroll your assets, get independent scores, and let the data speak for itself.