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docs: Hydropower MRV moved to Methodology Library folder
Signed-off-by: prernaadev01 <prernaa.agarwal@envisionblockchain.com>
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‎Methodology Library/Work In Progress/hydropower-mrv/BOUNTY_REQUEST.md‎

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# Request for Bounty Program Inclusion
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## Why Hydropower MRV Deserves Bounty Consideration
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### Global Impact
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- **16% of global electricity** from hydropower (larger than solar at 4%)
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- **1,300 GW installed capacity** worldwide
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- **Critical for emerging markets** (China: 370 GW, Brazil: 109 GW, India: 51 GW)
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### Methodology Gap
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Current Guardian library covers:
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- ✅ Afforestation (VM0047)
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- ✅ Forest management (VM0010)
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- ✅ Manure management
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### Unique Technical Contributions
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1. Device-level DID identities for turbines
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2. Hydro-specific telemetry (flow rate, head height, capacity factor, pH, turbidity)
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3. Real-time cryptographic verification (not periodic audits)
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4. Multi-tier royalty system for RECs
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5. Complete testnet deployment with evidence
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### Verra Alignment
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- Verra ACM0002 v22.0: Grid-connected electricity generation from renewable sources
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- I-REC Standard compliance
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- Gold Standard renewable energy requirements
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1. Add Hydropower MRV to the official bounty list
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2. Or provide guidance on alternative funding/recognition pathways
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3. Or accept as a pioneering general contribution with community recognition
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**Live Implementation**: https://github.com/BikramBiswas786/hedera-hydropower-mrv
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**Testnet Evidence**: https://hashscan.io/testnet/account/0.0.6255927

‎Methodology Library/Work In Progress/hydropower-mrv/EVIDENCE.md‎

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# Testnet Verification Evidence
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## Accounts
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- [Operator: 0.0.6255927](https://hashscan.io/testnet/account/0.0.6255927)
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- [Supply: 0.0.6255880](https://hashscan.io/testnet/account/0.0.6255880)
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## DID Topics
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- [Primary: 0.0.7462776](https://hashscan.io/testnet/topic/0.0.7462776)
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- [Secondary: 0.0.7462600](https://hashscan.io/testnet/topic/0.0.7462600)
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## REC Tokens (With Royalties)
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- [0.0.7462931 - 20% royalty](https://hashscan.io/testnet/token/0.0.7462931)
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- [0.0.7462932 - 15% royalty](https://hashscan.io/testnet/token/0.0.7462932)
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- [0.0.7462933 - 10% royalty](https://hashscan.io/testnet/token/0.0.7462933)
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## Sample Transactions
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- [Token Mint: 1765842864.188180000](https://hashscan.io/testnet/transaction/1765842864.188180000)
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- [Topic Create: 1765916384.007607726](https://hashscan.io/testnet/transaction/1765916384.007607726)
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## Verification Steps
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1. Open operator account → inspect transactions
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2. Open DID topics → view DID/AUDIT messages
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3. Open REC tokens → check royalty configs and treasury
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4. Verify token mints link to HCS messages with telemetry data
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## Complete Implementation
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Full code and documentation: https://github.com/BikramBiswas786/hedera-hydropower-mrv

‎Methodology Library/Work In Progress/hydropower-mrv/METHODOLOGY.md‎

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# Hydropower MRV Methodology v1.0
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## Applicability
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Small-scale hydropower facilities (< 15 MW) generating renewable electricity with verifiable energy output.
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## Baseline Setting
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Baseline emissions = Electricity Generated (MWh) × Grid Emission Factor (tCO2e/MWh)
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Grid factor sourced from local electricity authority.
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## Additionality
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Projects demonstrate additionality through:
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1. Investment barriers (lack of commercial viability without carbon credits)
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2. Technological barriers (new monitoring infrastructure required)
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3. Regulatory barriers (no mandatory renewable energy requirement)
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## Monitoring Protocol
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### Data Sources
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- **Energy Output:** Turbine flow meters (m³/s) × Head height (m) × Efficiency factor
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- **DID Verification:** Device-level identity attestation via Hedera HCS
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- **Frequency:** Real-time telemetry, aggregated monthly
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### Parameters Monitored
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| Parameter | Unit | Frequency | Device |
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|-----------|------|-----------|---------|
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| Flow Rate | m³/s | Continuous | Flow meter |
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| Head Height | m | Daily | Pressure sensor |
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| Energy Output | MWh | Hourly | Smart meter |
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| Capacity Factor | % | Monthly | Calculated |
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| pH Level | pH | Hourly | pH sensor |
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| Turbidity | NTU | Hourly | Nephelometer |
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## Verification Logic
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\\\
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IF (device_DID_verified AND
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telemetry_signed AND
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energy_output > baseline_minimum)
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THEN issue_REC(energy_output_MWh)
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\\\
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## Emission Reductions
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**Formula:** ER = Electricity Generated × (Grid EF - Project EF)
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Where Project EF = 0 (renewable source)
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## I-REC Compatibility
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- Device serial numbers mapped to DIDs
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- Energy generation tracked with tamper-proof signatures
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- Monthly aggregation for certificate issuance
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## References
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- I-REC Standard: https://www.irecstandard.org/
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- Verra ACM0002 v22.0: Grid-connected electricity generation from renewable sources
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- Gold Standard Renewable Energy Requirements
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## Technical Implementation
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Full implementation details: https://github.com/BikramBiswas786/hedera-hydropower-mrv

‎Methodology Library/Work In Progress/hydropower-mrv/README.md‎

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# Hydropower MRV Methodology
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**DLT Earth Bounty Submission** — $5,000 Request
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## Live Implementation
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Complete implementation with testnet deployment:
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🔗 [**https://github.com/BikramBiswas786/hedera-hydropower-mrv**](https://github.com/BikramBiswas786/hedera-hydropower-mrv)
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## What This Adds to Guardian
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Guardian currently supports general renewable energy and carbon methodologies, but lacks a **hydropower-exclusive MRV workflow**.
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**Hydropower has unique characteristics:**
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- Continuous generation (vs. solar's day/night cycles)
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- Water flow dependency and seasonal variability
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- Head height efficiency calculations
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- Turbidity and water quality impacts
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**This methodology introduces:**
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1. Device-level DID identities for turbines
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2. Hydro-specific telemetry (flow rate, head height, capacity factor, turbidity, pH)
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3. Verifier logic tailored to hydro generation periods
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4. On-chain issuance and retirement of hydropower RECs
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## Live Testnet Evidence
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- **Operator Account:** https://hashscan.io/testnet/account/0.0.6255927
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- **DID Topics:** https://hashscan.io/testnet/topic/0.0.7462776, https://hashscan.io/testnet/topic/0.0.7462600
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- **REC Tokens:**
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- https://hashscan.io/testnet/token/0.0.7462931 (20% royalty)
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- https://hashscan.io/testnet/token/0.0.7462932 (15% royalty)
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- https://hashscan.io/testnet/token/0.0.7462933 (10% royalty)
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## Technical Components
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1. **Device-signed telemetry → HCS anchoring** (AUDITv1 pattern)
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2. **DID-on-topic** for gateway & controller DIDs
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3. **HTS unique NFT issuance (RECs)** with multi-recipient royalties
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4. **Verifier/orchestrator flow:** resolve DID → verify signature → audit → mint
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5. **Resale/royalty demo + retirement** (token burn)
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## Methodology Compliance
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- ✅ **Verra ACM0002** alignment (Improved Hydrological Systems)
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- ✅ **I-REC Standard** compliance (Device Registry + Energy Tracking)
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- ✅ **Gold Standard** renewable energy requirements
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- ✅ **Formal methodology document** (see METHODOLOGY.md)
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## Bounty Request — $5,000
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**Deliverables (2-4 weeks):**
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- Automated verifier microservice (Node.js: HCS → IPFS → verify → mint)
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- IPFS workflow for metadata (minimal on-chain footprint)
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- KMS demo for supply key
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- Tests + one-click demo script
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- Open-source PR to Guardian repo + docs/video
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**Acceptance Criteria:**
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- Produces IPFS CID, HCS anchor, verifier attestation, minted NFT with CID
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- Tests pass for signature/replay checks
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- KMS demo explains production hardening
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## Contact
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**Bikram Biswas**
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Independent Developer
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Kolkata, India
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GitHub: @BikramBiswas786
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Signed-off-by: Bikram Biswas <bikrambiswas786@gmail.com>

‎Methodology Library/Work In Progress/hydropower-mrv/SCHEMA.json‎

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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"title": "Hydropower MRV Policy Schema",
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"description": "Guardian-compatible policy schema for small-scale hydropower MRV based on Verra VM0040",
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"version": "1.0.0",
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"type": "object",
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"properties": {
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"policyInfo": {
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"type": "object",
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"properties": {
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"name": {
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"type": "string",
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"const": "Hydropower MRV Policy (VM0040)"
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},
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"description": {
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"type": "string",
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"const": "Guardian implementation of Verra VM0040 for small-scale hydropower with DID-based verification"
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},
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"topicDescription": {
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"type": "string",
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"const": "Hydropower energy generation tracking"
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},
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"version": {
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"type": "string",
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"const": "1.0.0"
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}
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}
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},
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"policyRoles": {
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"type": "array",
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"items": {
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"type": "string",
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"enum": ["Owner", "Gateway", "Verifier", "Auditor", "Registry"]
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}
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},
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"schemas": {
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"type": "array",
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"items": {
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"type": "object",
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"properties": {
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"name": {
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"type": "string"
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},
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"entity": {
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"type": "string",
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"enum": ["VC", "MRV", "POLICY"]
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},
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"fields": {
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"type": "object"
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}
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}
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},
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"minItems": 1
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}
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},
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"definitions": {
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"HydropowerTelemetrySchema": {
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"type": "object",
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"required": ["flowRate", "headHeight", "energyOutput", "timestamp", "gatewayDID", "signature", "nonce"],
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"properties": {
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"flowRate": {
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"type": "number",
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"description": "Water flow rate in cubic meters per second (m³/s)",
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"minimum": 0
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},
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"headHeight": {
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"type": "number",
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"description": "Water head height in meters (m)",
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"minimum": 0
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},
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"energyOutput": {
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"type": "number",
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"description": "Energy generated in megawatt-hours (MWh)",
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"minimum": 0
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},
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"capacityFactor": {
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"type": "number",
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"description": "Capacity factor as percentage",
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"minimum": 0,
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"maximum": 100
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},
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"pH": {
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"type": "number",
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"description": "Water pH level",
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"minimum": 0,
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"maximum": 14
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},
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"turbidity": {
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"type": "number",
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"description": "Water turbidity in NTU",
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"minimum": 0
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},
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"timestamp": {
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"type": "string",
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"format": "date-time",
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"description": "ISO 8601 timestamp of measurement"
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},
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"gatewayDID": {
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"type": "string",
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"pattern": "^did:hedera:testnet:[a-zA-Z0-9._-]+$",
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"description": "Hedera DID of the gateway device"
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},
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"signature": {
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"type": "string",
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"description": "Ed25519 signature (base64 encoded)"
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},
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"nonce": {
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"type": "string",
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"description": "Unique nonce for replay protection"
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}
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}
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}
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}
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}

‎Methodology Library/Work In Progress/hydropower-mrv/VERRA-ALIGNMENT.md‎

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# Verra Methodology Alignment
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## Compatible Methodologies
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**Verra ACM0002 v22.0 - Grid-connected Electricity Generation from Renewable Sources**
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- **Applicability:** Small-scale hydropower facilities (< 15 MW) generating renewable electricity
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- **Alignment:** Our system digitizes ACM0002 monitoring requirements for hydropower projects
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- **Enhancement:** Adds device-level verification via DIDs and real-time cryptographic attestation
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## Key Alignments
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| Verra Requirement | Our Implementation |
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|-------------------|--------------------|
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| Energy measurement | Flow meter + head height sensors |
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| Data integrity | Cryptographic signatures on HCS |
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| Verification | Automated verifier microservice |
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| Issuance | HTS tokens (fungible RECs) |
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| Retirement | Token burn mechanism |
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## I-REC Standard Compliance
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✅ Device registry (DID-based)
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✅ Energy output tracking (MWh)
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✅ Monthly aggregation
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✅ Unique identifiers (HTS token IDs)
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✅ Transfer and retirement tracking
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## Enhancement Beyond Traditional MRV
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1. **Device-Level Identity:** Each turbine has cryptographic DID
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2. **Real-Time Verification:** Automated signature verification (vs. periodic audits)
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3. **Immutable Audit Trail:** Public DLT (vs. centralized databases)
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4. **Tamper Detection:** Instant signature invalidation
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5. **Replay Protection:** Nonce-based duplicate prevention
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## Future Work
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- Formal Verra validation for specific project sites
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- Gold Standard methodology integration
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- CDM compatibility assessment

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