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ADR-0006: Anker SOLIX C1000 Gen 2 covers outage scenario — no 5G backup

Status

Accepted — 2026-03-31

Context

The homelab operates in a basement in Ville St-Laurent, QC. The region has experienced multi-day power outages causing basement flooding. The target outage scenario is 4-6 hours — typical regional grid outage duration, not multi-day events.

A 5G backup dongle was evaluated as a resilience addition.

Decision

No 5G backup dongle at this build stage. The Anker SOLIX C1000 Gen 2 (1,024Wh LiFePO4, 2,000W) covers the 4-6 hour scenario.

  • Estimated draw: 180-250W continuous (all nodes)
  • Runtime at full draw: ~4-6 hours
  • ISP modem on same UPS — internet stays live during outage
  • No recurring mobile plan cost justified

Revisit in Phase 3+ if: platform is used for live client demos, or multi-WAN testing is required.

Alternatives Considered

Public Mobile 5G plan (~$34/month) — Annual cost ~$408. ISP modem stays live on UPS anyway. Cost not justified.

Consequences

  • No out-of-band management path if ISP modem fails during an outage (acceptable risk at this stage)
  • Multi-WAN testing needs a different approach

References

  • ADR-0007 (standalone flood sensor)
  • Anker SOLIX C1000 Gen 2: 1,024Wh, 2,000W, LiFePO4