A smart plug or UPS makes always-on earn boxes look tidy — until the shared meter and the group chat notice. RefDeal maps fairness so overnight stacks do not steal silence, heat, or euros from flatmates who never opted in.
Tip: signup buttons may use invite links. You still join the official app or service — earnings for you depend on each company’s terms.
Smart plugs and UPS units do not invent free electricity — they schedule or buffer it. On a shared meter that cost is social even when euros look small — roommate-electricity-vs-overnight-earn-fairness-europe-2026, shared-nas-minipc-electricity-overnight-earn-fairness-europe-2026.
Fairness is not only the bill: fan noise, cupboard heat, and Wi‑Fi contention matter — quiet-hours-overnight-earn-scheduling-europe-2026, exam-laptop-heat-vs-overnight-earn-2026, multi-device-household-scoreboard-earn-apps-2026.
⇄Shared smart-plug/UPS electricity vs overnight earn fairness
Shared meter? → written rule + quiet hours + € buffer → vs Solo meter / own room agreed? → light scheduled stack → Bill spike or noise? → pause + renegotiate.
Fairness checklist (EU shared flats)
If flatmates only notice your smart plug when the bill or the fan wakes them, the fairness conversation already failed.
Propose one overnight window and hard stop on the smart plug schedule — quiet-hours-overnight-earn-scheduling-europe-2026
Prefer one efficient mini-PC over three thrashing laptops behind one UPS — shared-nas-minipc-electricity-overnight-earn-fairness-europe-2026
Offer a fixed €/month buffer if power is a concern — even small buffers calm chats
Docker isolates clients; it does not invent free watts — docker-bandwidth-stack, hosting-vps-for-bandwidth
ISP fair-use still binds the whole flat IP — isp-fair-use-bandwidth-europe-2026, shared-ip-household-bandwidth-2026
Landlord AUP may ban commercial sharing anyway — landlord-wifi-earn-apps-europe-2026
When scheduled overnight earn still fits
Solo meter, own room, written OK, quiet efficient box, ISP fair-use checked — then a light scheduled overnight client can be a calm coffee-money add-on.
Exam weeks and heat waves: pause the schedule — exam-laptop-heat-vs-overnight-earn-2026. Fairness includes sleep and study, not only euros.
Tonight
If a shared smart plug/UPS is powering overnight earn without a written house note: pause the schedule, draft one line in the group chat (window + device + stop/€ buffer), and only restart after agreement. Hub: /guides/bandwidth-safety/. Start: /en/start/.