Sanitized mirror from private repository - 2026-04-05 12:11:15 UTC

docs/admin/cost-energy-tracking.md

@@ -0,0 +1,212 @@
+# Cost & Energy Tracking
+
+*Tracking expenses and power consumption*
+
+---
+
+## Overview
+
+This document tracks the ongoing costs and power consumption of the homelab infrastructure.
+
+---
+
+## Hardware Costs
+
+### Initial Investment
+
+| Item | Purchase Date | Cost | Notes |
+|------|---------------|------|-------|
+| Synology DS1821+ (Atlantis) | 2023 | $1,499 | 8-bay NAS |
+| Synology DS723+ (Calypso) | 2023 | $449 | 2-bay NAS |
+| Intel NUC6i3SYB | 2018 | $300 | Used |
+| Raspberry Pi 5 16GB | 2024 | $150 | |
+| WD Red 8TB x 6 (Atlantis) | 2023 | $1,200 | RAID array |
+| WD Red 4TB x 2 (Calypso) | 2023 | $180 | |
+| Various hard drives | Various | $500 | Existing |
+| UPS | 2023 | $200 | |
+
+**Total Hardware:** ~$4,478
+
+### Recurring Costs
+
+| Item | Monthly | Annual |
+|------|---------|--------|
+| Electricity | ~$30 | $360 |
+| Internet (upgrade) | $20 | $240 |
+| Cloud services (Backblaze) | $10 | $120 |
+| Domain (Cloudflare) | $5 | $60 |
+
+**Total Annual:** ~$780
+
+---
+
+## Power Consumption
+
+### Host Power Draw
+
+| Host | Idle | Active | Peak | Notes |
+|------|------|--------|------|-------|
+| Atlantis (DS1821+) | 30W | 60W | 80W | With drives |
+| Calypso (DS723+) | 15W | 30W | 40W | With drives |
+| Concord NUC | 8W | 20W | 30W | |
+| Homelab VM | 10W | 25W | 40W | Proxmox host |
+| RPi5 | 3W | 8W | 15W | |
+| Network gear | 15W | - | 25W | Router, switch, APs |
+| UPS | 5W | - | 10W | Battery charging |
+
+### Monthly Estimates
+
+```
+Idle:     30 + 15 + 8 + 10 + 3 + 15 + 5 = 86W
+Active:  60 + 30 + 20 + 25 + 8 + 15 = 158W
+
+Average: ~120W (assuming 50% active time)
+Monthly: 120W × 24h × 30 days = 86.4 kWh
+Cost:    86.4 × $0.14 = $12.10/month
+```
+
+### Power Monitoring
+
+```bash
+# Via smart plug (if available)
+curl http://<smart-plug>/api/power
+
+# Via UPS
+upsc ups@localhost
+
+# Via Grafana
+# Dashboard → Power
+```
+
+---
+
+## Cost Per Service
+
+### Estimated Cost Allocation
+
+| Service | Resource % | Monthly Cost | Notes |
+|---------|------------|--------------|-------|
+| Media (Plex) | 40% | $4.84 | Transcoding |
+| Storage (NAS) | 25% | $3.03 | Always on |
+| Infrastructure | 20% | $2.42 | NPM, Auth |
+| Monitoring | 10% | $1.21 | Prometheus |
+| Other | 5% | $0.60 | Misc |
+
+### Cost Optimization Tips
+
+1. **Schedule transcoding** - Off-peak hours
+2. **Spin down drives** - When not in use
+3. **Use SSD cache** - Only when needed
+4. **Sleep services** - Use on-demand for dev services
+
+---
+
+## Storage Costs
+
+### Cost Per TB
+
+| Storage Type | Cost/TB | Use Case |
+|--------------|---------|----------|
+| NAS HDD (WD Red) | $150/TB | Media, backups |
+| SSD | $80/TB | App data, DBs |
+| Cloud (B2) | $6/TB/mo | Offsite backup |
+
+### Current Usage
+
+| Category | Size | Storage Type | Monthly Cost |
+|----------|------|--------------|---------------|
+| Media | 20TB | NAS HDD | $2.50 |
+| Backups | 5TB | NAS HDD | $0.63 |
+| App Data | 500GB | SSD | $0.33 |
+| Offsite | 2TB | B2 | $12.00 |
+
+---
+
+## Bandwidth Costs
+
+### Internet Usage
+
+| Activity | Monthly Data | Notes |
+|----------|--------------|-------|
+| Plex streaming | 100-500GB | Remote users |
+| Cloud sync | 20GB | Backblaze |
+| Matrix federation | 10GB | Chat, media |
+| Updates | 5GB | Containers, OS |
+
+### Data Tracking
+
+```bash
+# Check router data
+# Ubiquiti Controller → Statistics
+
+# Check specific host
+docker exec <container> cat /proc/net/dev
+```
+
+---
+
+## ROI Considerations
+
+### Services Replacing Paid Alternatives
+
+| Service | Paid Alternative | Monthly Savings |
+|---------|-----------------|------------------|
+| Plex | Netflix | $15.50 |
+| Vaultwarden | 1Password | $3.00 |
+| Gitea | GitHub Pro | $4.00 |
+| Matrix | Discord | $0 |
+| Home Assistant | SmartThings | $10 |
+| Seafile | Dropbox | $12 |
+
+**Total Monthly Savings:** ~$44.50
+
+### Break-even
+
+- Hardware cost: $4,478
+- Monthly savings: $44.50
+- **Break-even:** ~100 months (8+ years)
+
+---
+
+## Tracking Template
+
+### Monthly Data
+
+| Month | kWh Used | Power Cost | Cloud Cost | Total |
+|-------|----------|-------------|------------|-------|
+| Jan 2026 | 86 | $12.04 | $15 | $27.04 |
+| Feb 2026 | | | | |
+| Mar 2026 | | | | |
+
+### Annual Summary
+
+| Year | Total Cost | kWh Used | Services Running |
+|------|------------|----------|-------------------|
+| 2025 | $756 | 5,400 | 45 |
+| 2026 | | | 65 |
+
+---
+
+## Optimization Opportunities
+
+### Current Waste
+
+| Issue | Potential Savings |
+|-------|-------------------|
+| Idle NAS at night | $2-3/month |
+| Unused services | $5/month |
+| Inefficient transcoding | $3/month |
+
+### Recommendations
+
+1. Enable drive sleep schedules
+2. Remove unused containers
+3. Use hardware transcoding
+4. Implement auto-start/stop for dev services
+
+---
+
+## Links
+
+- [Hardware Inventory](../infrastructure/hardware-inventory.md)
+- [Backup Procedures](../BACKUP_PROCEDURES.md)