# SCI report - greenops-status-api

- **Version:** 37610941
- **Functional unit (R):** 1,000 successful HTTP requests
- **User base:** eu-west
- **Generated:** 2026-10-25T01:56:14.155189+00:00

## Operational SCI = (E x I) / R

| Field | Value |
|---|---|
| Energy per functional unit (E) | 0.0016 kWh (modeled) |
| Grid intensity (I) | 29.84 gCO2e/kWh (FI) |
| **Operational SCI** | **0.047744 gCO2e / 1,000 requests** |
| Uncertainty | +/-18% |

## Embodied emissions (M, reported separately)

0.004 gCO2e / 1,000 requests - assumption, not measured; see docs/carbon-methodology.md.

## Deployment decision

- **Selected:** europe-north1 (Finland, zone FI, CFE 98%)
- **Constraints:** {"max_latency_ms": 80.0, "allowed_regions": null, "carbon_budget_g_per_1k": 0.35}
- **Data source:** Google Cloud region carbon data 2025 (annual average, location-based grid intensity) - github.com/GoogleCloudPlatform/region-carbon-info (dataset year 2025)

| Region | Zone | gCO2e/kWh | Latency | Outcome |
|---|---|---|---|---|
| europe-north1 | FI | 29.84 | 32 ms | **selected** |
| africa-south1 | ZA | 641.42 | 165 ms | latency 165ms exceeds 80ms budget |
| asia-east1 | TW | 427.95 | 260 ms | latency 260ms exceeds 80ms budget |
| europe-west1 | BE | 126.43 | 10 ms | higher SCI |
| europe-west10 | DE | 275.81 | 12 ms | higher SCI |
| europe-west2 | GB | 109.39 | 14 ms | higher SCI |
| europe-west4 | NL | 194.35 | 8 ms | higher SCI |
| southamerica-east1 | BR-CS | 73.25 | 200 ms | latency 200ms exceeds 80ms budget |
| us-central1 | US-MIDW-MISO | 431.95 | 110 ms | latency 110ms exceeds 80ms budget |
| us-east1 | US-CAR-SC | 579.44 | 95 ms | latency 95ms exceeds 80ms budget |
| us-west1 | US-NW-BPAT | 97.85 | 150 ms | latency 150ms exceeds 80ms budget |

## Incremental comparison

| Scenario | Region | Operational SCI (g/1k req) |
|---|---|---|
| Carbon-unaware baseline | europe-west4 | 0.310960 |
| Verdant | europe-north1 | 0.047744 |

**Modeled reduction: 84.7% (+/-18%).** Modeled incremental comparison. Same workload, same right-sizing and scale-to-zero in both scenarios; the delta comes only from choosing the lowest-carbon feasible region instead of the lowest-latency one. Uses annual-average location-based grid intensity, not marginal or real-time data.