The Break-Even Premium Is Only Half the Decision
Ada re-derives this chapter’s own numbers step by step, at full precision
ADA · CALCULATION AUDIT
The Break-Even Premium Is Only Half the Decision
An automotive supplier weighs private 5G URLLC against industrial Wi-Fi for 120 AGVs across 3 factory buildings, and the five-year totals land at EUR 435,000 versus EUR 193,000 — a EUR 242,000 premium for choosing 5G. It is tempting to read that premium as the whole decision. This audit rebuilds both totals line by line and asks whether the EUR 242,000 gap settles the choice, or only measures the cost side of it.
Companion to the chapter 5G URLLC and 6G Vision for IoT — every number here comes from that chapter.
Ada: Step 3 hands me two five-year totals and a premium, so let me rebuild them line by line from the automotive-supplier scenario (120 AGVs, 3 buildings) before anyone treats EUR 242,000 as the answer.
Private 5G, five-year total:
- Radios:
6 gNBs x EUR 35,000 = EUR 210,000 - MEC server:
EUR 45,000 - Licence over five years:
5 x EUR 36,000 = EUR 180,000 - Total:
210,000 + 45,000 + 180,000 = EUR 435,000
Industrial Wi-Fi, five-year total:
- Access points:
90 x EUR 1,200 = EUR 108,000 - Controller:
EUR 25,000 - Licence over five years:
5 x EUR 12,000 = EUR 60,000 - Total:
108,000 + 25,000 + 60,000 = EUR 193,000
The premium is therefore 435,000 - 193,000 = EUR 242,000, exactly as stated. But that figure is only the cost side of the ledger, and it decides nothing on its own. The release is justified only when the avoided loss, which is collision damage and downtime multiplied by the reduction in incident probability over five years, clears that EUR 242,000, which is why the chapter sends the reviewer back to measured roaming, interference, and safety-sensor evidence rather than to the price tag alone.
Every number above is taken from the chapter’s own material and re-derived step by step.