R4: Energy-side Carbon

What this route does.

R4 pays for measured, avoided emissions created by energy projects that pass a strict additionality and emissionality test. It issues ex-post, independently verified tons, only after any overlapping energy certificates are retired or immobilized, and it enforces one-claim law in code. No evidence → no ton → no settlement.  

PoV in Action

1

Capture & Sign

You connect revenue-grade metering (utility/inverter) and—if applicable—battery telemetry. As production arrives, EDMA mints ETT (1 per 10 kWh) to your wallet; each meter window is signed at the source and normalized to canonical evidence.

2

Verify

Independent roles attest the same evidence hash: an auditor plus an operational role for generation; for storage dispatch, program/aggregator + auditor confirm baseline, dispatch signal, and measured response. Anomalies (time drift, impossible balances, missing signatures) fail here. 

3

Gate

The PoV Gate then enforces three rules before any state change:

  • quorum present

  • equality of evidence (every counted attestation references the same evidenceHash/window)

  • one-claim exclusivity (the derived claimId hasn’t finalized anywhere on EDMA).

  • Fail ⇒ no mint / no retire / no settle.

4

Lock the math

For each hour we compute eligible tons with node/region marginal emission factors where available (else residual mixes), plus T&D losses and a conservative buffer. Factor source + version are locked at issuance on-chain, with a documented re-issuance SOP for material restatements.

5

Retire energy attributes first

If RECs/GO/I-RECs were issued for those kWh, EDMA retires or immobilizes them in the registry and records the external IDs on-chain before any carbon ton is considered. The relevant ETT are then stamped & locked so they cannot be reused. One kWh, one claim. 

6

Issue, sell, settle

A verifier signs the batch; EDMA mints tons ex-post, sells on forwards/floors or spot, and pays proceeds to your vault in stablecoins. Fees are 4% total (2% seller at claim, 2% buyer at settlement), in $EDM; 50% of every fee burns on-chain. If you don’t hold EDM, the action fails cleanly—no auto-swaps. A $0.50/EDM denomination floor is used only to compute how many tokens are due; it is not a price peg.

Drawing

Who qualifies

You’re in scope if EDMA caused the project (or a material upgrade) or you shift clean kWh into dirtier hours with provable storage dispatch. Clean-grid rooftops without storage typically don’t qualify and are routed to R1/R2 so they still earn.

Where this pays

The lane is strongest in high-emission grids (coal/gas-heavy, peaky marginal EF), in mixed grids with evening peaks where batteries can prove emissionality, and in captive/private-wire situations that visibly displace fossil supply. Typical price band: $30–$60 per ton (quality-dependent).

Worked example

  • Plant: 100 MW solar

  • Sun hours: 1,500 h/year → 150,000 MWh/year

  • Method: ex-post avoided-emissions using marginal emission factors (MEF)

  • Conservative deductions: 3% technical × 5% uncertainty ⇒ 0.97 × 0.95 = 0.9215

  • Fees: 4% total (2% buyer + 2% seller), paid in $EDM; 50% of every fee burns (so effective burn = 2% of gross)

Scenario A — No storage (additionality only)

Saleable tons = MWh × MEF × 0.9215

Grid band (MEF)

Saleable tCO₂/yr

Price $/t

Net to park / yr

Net / month

Burn / yr (2% GMV)

Coal/gas-heavy (0.70)

96,757.50

30

$2,844,670

$237,056

$58,055

40

$3,792,894

$316,075

$77,406

50

$4,741,118

$395,093

$96,758

Mixed grid (0.45)

62,201.25

30

$1,828,717

$152,393

$37,321

40

$2,438,289

$203,191

$49,761

50

$3,047,861

$253,988

$62,201

Net to park = saleable × price × 0.98 (your 2% seller leg).

Burn = gross × 0.02 (half of the 4% protocol fee). Settlement requires $EDM; no EDM, no action.

Scenario B — With BESS (time-shifting into dirtier hours)

Assumptions: 25% of annual energy is shifted to evenings via 100 MW / 200 MWh BESS, RTE = 88%.

Delivered energy splits: 112,500 MWh day (not shifted) + 33,000 MWh night (discharge).

Avoided tons are computed hour-by-hour with the relevant MEF, then the same 0.9215 factor is applied.

  • Mixed grid uplift (e.g., 0.45 → 0.70 from day to evening):

    Saleable = 67,937.59 t/yr (vs 62,201.25 without BESS) → +5,736 t/yr

Grid band (day → peak MEF)

Saleable tCO₂/yr

Price $/t

Net / yr

Net / month

Burn / yr

Mixed (0.45 → 0.70)

67,937.59

30

$1,997,365

$166,447

$40,763

40

$2,663,153

$221,929

$54,350

50

$3,328,942

$277,412

$67,938

  • Coal/gas-heavy uplift (e.g., 0.70 → 0.80) is small because the MEF spread is narrower: 96,895.73 t/yr vs 96,757.50 (≈ +138 t/yr).

Summary

  • At $40/t, a 100 MW park on a coal/gas-heavy grid nets about $3.79M/year ($316k/month) with no storage.

  • On a mixed grid, no storage nets about $2.44M/year ($203k/month) at $40/t.

  • Adding BESS (25% shift, 88% RTE) on a mixed grid lifts that to about $2.66M/year ($222k/month) at $40/t—the uplift depends on the day→evening MEF spread.

  • In all cases, 4% fees in $EDM apply; 50% of every fee burns on-chain (≈ 2% of gross burned).

Earnings bands

  • Storage-shift in mixed grids: commonly $300–$2,000+/yr for residential batteries; higher for C&I systems, depending on cycles and EF spread.

  • New capacity we cause in high-EF grids: $30–$60/t × measured tons; legacy PV in clean grids usually not eligible.

What you actually do (first week → first payouts)

  • KYC + wallet (minutes) → run the additionality gate (fast yes/no).

  • Connect data; ETT begin minting automatically.

  • Buy a small EDM buffer (the app shows a fuel gauge). Admission Prefund (USD) = min( max( 0.02 × projected 3-month carbon revenue, $20 ), $1,000 )—staked in EDM so deposits/claims never stall; withdrawable on exit in good standing.

  • Thereafter: compute hourly emissionality → retire/immobilize any attributes → verify → issue → sell → claim, with 2% seller fee in EDM and 50% burn published per region.

Integrity

  • Double counting: impossible by design—retirement/immobilization comes before tons; external IDs and consumed ETT are recorded on-chain.

  • Factor drift hand-waves: each batch stores EF source/version; material restatements follow a documented SOP (no ad-hoc repricing of settled vintages).

  • Pay without EDM: not on EDMA—no EDM, no action (gas and fees).

Risks & how we manage them

  • EF quality. Transparent hierarchy, versioned sources, losses/buffers; SOP for restatements.

  • Failing the gate. Fast triage and reroute to R1/R2 so value isn’t lost.

  • Verifier backlog. Panel of accredited verifiers, batch scheduling, published timelines.

  • Buyer concentration. Two-sided marketplace, per-buyer caps, broker standby.

  • Payout/AML. Regulated rails; KYC/sanctions; travel-rule compliance; geofencing as needed.

Non-negotiables

  • Ex-post only

  • One-claim law (energy attributes retired/immobilized first)

  • EDM only; no auto-swap

  • 4% total fee with 50% burn until circulating supply reaches 100M.

  • PoV Layer (§9): quorum, equality, one-claim, revocation

  • Fees/Tokenomics (§14/§18): 4% rule, denomination floor, 50% burn

  • Routes (§20): stacking with R1/R2/R3 without violating one-claim.


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