Clean Cooking Fuel & Usage

Overview

African Clean Energy runs a clean cooking and energy access programme built around the ACE One, a biomass gasification cookstove with an integrated solar panel, battery, and onboard sensor that logs each cooking session. The activity reduces greenhouse gas emissions and household air pollution by replacing traditional cooking with efficient fan-driven combustion that consumes less biomass fuel, and the device-level data supports measurement, reporting, and verification. Credits are certified under Gold Standard programmes and issued for metered and measured stove use, with independent validation and verification of the data, and the programme also participates in Article 6 of the Paris Agreement. One credit represents one metric ton of carbon dioxide equivalent reduced.

Sources: methodology document · African Clean Energy

01 · Roles

The workflow as an explicit directed graph. In Graph each column is one role, so you can see who acts at each step; every node names the org.broadlistening.policy.block.* def it resolves to plus its input and output record. Data flow switches to a lineage view that makes explicit what data each node needs and makes, with dependency arcs tracing every record back to the node that produced it. Hover to trace, click to inspect; revise edges (dashed) send work back.

03 · Generated lexicon records

The records this methodology compiles to, ready to write to a PDS. The first tabs are the new policy engine records; the ★ claim.activity tab and those after it are reused ATProto Collective Funding Ecosystem records (org.hypercerts.*): the issued hypercert batch, its rights, an example verification attachment and a retirement receipt.

{
  "$type": "org.broadlistening.policy.methodology",
  "code": "ACE",
  "name": "Clean Cooking Fuel & Usage",
  "registry": "African Clean Energy (ACE)",
  "sector": "Clean cooking",
  "creditType": "reduction",
  "status": "active",
  "version": "1.0",
  "roles": [
    {
      "id": "registry",
      "name": "Standard Registry",
      "permission": "Owns the policy, approves participants, anchors each issuance to its evidence."
    },
    {
      "id": "proponent",
      "name": "Project Proponent",
      "permission": "Registers the project and submits monitoring reports."
    },
    {
      "id": "vvb",
      "name": "Validation & Verification Body",
      "permission": "Independently validates the design and verifies monitored data."
    }
  ],
  "schemas": [
    "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.broadlistening.policy.schema/ace-cookstove-project-design",
    "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.broadlistening.policy.schema/ace-cookstove-monitoring-report"
  ],
  "graph": "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.broadlistening.policy.graph/ace-cookstove",
  "issuesAs": "org.hypercerts.claim.activity",
  "workScope": "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.hypercerts.workscope.cel/ace-cookstove-scope",
  "rights": "at://did:plc:bl0adl1sten1ngp0l1cyreg/org.hypercerts.claim.rights/ace-cookstove-rights",
  "createdAt": "2025-01-01T00:00:00.000Z"
}

04 · Schemas