Hold on to the room fee. Save on the power.

What it is worth

Two leaks, both visible in the hotel’s own accounts.

Of the three accounts, room fee and electricity are the two that leak and can be plugged; member retention belongs with the key itself and is not opened up on this page. Neither of these leaks relies on a feeling of having saved something — both can be checked in your own operating accounts.

• Account one · room fee

  The room runs on even with nobody in it

  Room-fee leakage prevented outside stays: cards bound to guests, entries logged; cleaning, inspection, viewings, maintenance and patrols each get their own maximum power window and cut off the moment the person leaves. For a hundred-room property that is a slice of revenue nobody sees being held on to.

• Account two · electricity

  The card is still there; the guest is not

  Over-issued cards are common and most guests do not pull the card on the way out — the slot keeps the power on and the room idles along. Presence-based power cuts that idling off, running about four hours less a day than a card slot.

The guest experience

The guest does nothing at all.

The only thing the guest does is open the door. Everything else — corridor light, air conditioning, night light, saving — the room works out on its own. Each line below says what triggers it.

1. Walking in

   Door opened → power flag A4

   The corridor light comes on by itself; during a stay the preset welcome scene runs invisibly, told apart by day or night and first entry or a return, so it never intrudes.

2. While in the room

   A confirmed-present event holds → B2 / B3 / B4

   Air conditioning follows the booking tag: an A-grade guest has it pre-cooled at check-in and closed if nobody enters; an S-grade guest keeps a constant-temperature room. Day and night are configured separately.

3. Closing the door behind you

   Door closed → the room is set to unoccupied unconditionally

   Saving begins automatically; the six stages run in order, fifteen minutes each, with none skippable.

4. Up in the night

   Continuous presence sensing → B2

   Step out of bed and a night light comes on; the bathroom sits at 10% brightness, soft rather than harsh. Lights fade up and down, and the gradual change makes it feel considered.

5. Outside stays

   Operations event → A7, with a maximum power window

   Cleaning, inspection, viewings, maintenance and patrols each get their own maximum power window and cut off the moment the person leaves, so no light is left burning and no air conditioning left running.

Saving during a stay

Once the guest leaves, the room takes 90 minutes to shut itself down.

The six stages run in order, fifteen minutes each, with none skipped. If a confirmed-present event happens again during that time, saving stops at once and power returns — the guest is never left in the dark.

0 min15 min per stage · the air side ends at 45 min90 min

Even if the air conditioning is already off, a full 45 minutes still runs before lighting saving begins — the order is never skipped.

Working out the saving

300 kWh saved per room per year, and the arithmetic is open.

Evidence first, conclusion second: all four premises below come from PMS order data, and any hotel can check them against its own orders.

Mind the definitions: 11.2 hours is hours the guest is actually in the room, while 11.3 hours is average powered hours once presence-based power is in use — two different quantities. Also: step 3 of the derivation uses “four months of air conditioning a year”, a fifth input that is not part of the PMS figures above.

Deployment cost

1,000+ yuan less to build each room.

The same room, with nothing lost: three fewer device categories and one less chasing job.

• No door sensorSkip the door sensor and its purchase and fitting are both savedsave 100+ yuan
• No occupancy sensorNo extra sensor, so its purchase and wiring are both savedsave 300+ yuan
• Lighting run overheadThe lighting circuit goes through the ceiling, so no wall has to be chasedsave 500+ yuan
• No lamp driversLamps come without drivers, so sourcing costs lesssave 100+ yuan

Delivery and questions

Power it up and it works, with no commissioning on site.

Nothing needs commissioning after installation, and if something goes wrong the hotel does not have to touch it.

• Commissioning-free room control

  Scan to add a device to its place in the room and it joins the network as soon as it is powered; once the power saver is online it distributes the cloud configuration to every device, with nobody involved.

• Self-recovering room control

  If a device fails, replace it from the back end: no site visit, the configuration comes back by itself and nothing is re-commissioned.

Each point in depth on its own page: energy saving · room-fee leakage · the Occupancy Power Saver (the standalone hardware route) · lift and door access · ultimate silence · one-card。

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