SmartREM: Hotel Energy Saving Solutions for HVAC Automation

Savings that stay on.

SmartREM makes any property a genuinely energy saving hotel — cutting HVAC waste by up to 30%, room by room, automatically.
Zero disruption. Fast to install. Measured, not estimated.
Flexible Commercial Model
SmartREM
20,000+
rooms installed
10M+
room nights measured
Measured across live properties in Southeast Asia & the Middle East
Hilton
Hyatt
Accor
Shangri-LA
The Ascott
John Doe
Testimonials quote

“SensorFlow provided critical insights, helping us reduce electricity consumption and prevent mold effectively.”

Allen Khoo
General Manager - City Hotel
John Doe
Testimonials quote

“SensorFlow’s ESG dashboard offers compelling insights for sustainability and operational efficiency.”

Michael Patrick Slevin
Director of Engineering - Resort
John Doe
Testimonials quote

“SensorFlow’s Smart Guest Room HVAC automation will significantly advance our sustainability objectives.”

Teerawat Rakthong
Director of Engineering - Resort
John Doe
Testimonials quote

“SensorFlow has been instrumental in uncovering key energy inefficiencies across our properties.”

Jonathan Wong
CEO - Co-Living
John Doe
Testimonials quote

“SensorFlow is helping us achieve our energy reduction goals and lower our carbon footprint.”

Andreas Kahl
General Manager - Resort

Why Hotels Need SmartREM's Energy Saving Solution

HVAC energy in guest rooms
Guests leave the keycard in or don't turn off their AC
Average time a guest is out of a hotel room

Tailor made Setting for Your Hotel and Guests

  • Each room can have its own settings as one size does not fit all
  • Each guest can have individual settings amended quickly and easily to their preferences
  • Real-time feedback response-receive feedback from guests? Take action immediately
Book A Demo
Flexible Commercial Model
Tailor made Setting for You Hotel and Guests
30% of In-room HVAC energy Consumption

30% of in-room HVAC energy consumption can be recovered without compromising on guest satisfaction

How SmartREM's Hotel Energy Saving Technology Works

Wireless IoT Sensors
AI & Automation
Real-Time Monitoring & Analytics
Remote HVAC Control
Energy Savings & Sustainability
Wireless IoT Sensors
AI & Automation
Real-Time Monitoring & Analytics
Remote HVAC Control
Energy Savings & Sustainability
Chart showing energy savings achieved through SmartREM's occupancy-based HVAC automation

Occupancy Automation

Chart showing energy savings achieved through SmartREM's occupancy-based HVAC automation

Hotel rooms spend an average of 11 hours per day unoccupied—yet their air conditioning continues running, wasting valuable energy. SmartREM intelligently detects occupancy in real-time, automatically adjusting HVAC settings the moment guests leave the room.

SmartREM is part of SensorFlow’s broader hotel energy management systems. For whole-room energy management that extends beyond HVAC to lighting, curtains, and keyless entry, explore SmartARC.

Guest Energy Consumption at 20°C
Guest Energy Consumption at 20°C
Energy Savings by Automation
Energy Savings by Automation

Setpoint Limitation

Chart comparing hotel guest room AC energy consumption at different thermostat setpoint temperatures throughout the day

The guests’ setpoint makes a significant difference in the amount of energy used, and the cost the hotel incurs.

By analyzing real-time room data, we determine the ideal temperature range for guest comfort and system optimisation, enabling you to limit the minimum and maximum temperature that the thermostat can be set to.

Chart comparing hotel guest room AC energy consumption at different thermostat setpoint temperatures throughout the day

Savings background arrow you can trust

Savings
Independently audited
Savings Independently audited by
Proof in practice
Anantara Mai Khao Phuket
151 keys. 28% less HVAC energy. Guest comfort held.
28%
avg HVAC reduction
$54K/yr
≈552,000 kWh saved a year
$94,486
saved after 21 months
495t
CO2 avoided

"We achieved 28% savings (≈552,000 kWh or USD 54,000 annually) without impacting guest comfort … a superior solution and excellent customer support … without compromising on our high standards."

Jittraporn "Jang" Sukjaimit, Hotel Manager, Anantara Vacation Club Mai Khao Phuket
Read the Full Case Study →

SensorFlow's Smart Room Installation

  • Non Invasive installation done in less than ten minutes.
  • No need to block rooms for install, it can be done alongside housekeeping.
  • Install a 250-room property in under 1 week.

Visibility and Control On the Move

  • Engineers can check a room’s performance on the move
  • Housekeeping can check to see whether a room is empty
  • Settings can be changed in any room from anywhere in the world
Visibility and Control On the Move

Make Smarter Decisions with Simulation and Benchmarking.

Data driven Insights to inform Decision making
Understand Your Performance
Understand Your Guests
Understand Your Usage
Data driven Insights to inform Decision making
Understand Your Performance
Understand Your Guests
Understand Your Usage

Smart Payment Options

Upfront Investment
Monthly Payment
Ownership
Long-term Benefit
Hardware Warranty
Smart Lease

Smart Lease

Upfront Investment
$120/room
Monthly Payment
$5/room (5-year contract)
Ownership
Leased
Long-term Benefit
Faster to positive monthly cash flow
Hardware Warranty
Always covered, for as long as you're on the plan
CAPEX

Smart Own

Upfront Investment
$120/room
Monthly Payment
$8/room until projects costs paid, then $2.25/room license fee
Ownership
Owned after payoff
Long-term Benefit
Balance of cost and ownership, converges to CAPEX rate once paid off
Hardware Warranty
5-year
Enterprise

CAPEX

Upfront Investment
Full project costs
Monthly Payment
$2.25/room licence fee
Ownership
Owned immediately
Long-term Benefit
Maximum savings retained (no lease markup, ever)
Hardware Warranty
5-year

Every path includes the team that keeps your savings ON and GUARANTEED returns.

See how SmartREM fits into SensorFlow’s complete guide to hotel energy management systems.

Frequently Asked Questions

How much energy can SmartREM save a hotel?

SmartREM typically cuts HVAC energy waste in guest rooms by 20% to 30%, automatically adjusting settings based on real-time occupancy — one of the fastest ways to become a genuinely energy efficient hotel.

How long does SmartREM take to install?

SmartREM is a non-invasive retrofit that installs in under 10 minutes per room, with no disruption to hotel operations.

What does it cost to install SmartREM?

SmartREM offers flexible payment plans starting from $120 per room upfront, including a low-cost Smart Lease from $5/room per month, an Ownership Payment Plan, or a CAPEX option for full ownership from day one

Will SmartREM cut the AC while a guest is sleeping?

No. SmartREM uses a delay between a room being detected as empty and energy-saving automation taking effect, so a guest is never mistaken for being away. That delay is extended further at night specifically to ensure a sleeping guest is never disturbed, while still maximising savings whenever the room really is unoccupied.

Can SmartREM help manage humidity in guest rooms?

Yes. SmartREM's smart thermostat reads humidity in real time, but the bigger benefit is what it prevents: overcooling a room drives surface temperatures below the dew point, so when warmer, humid air contacts those cold surfaces, moisture condenses — a common cause of mould and musty rooms in hotels. By managing setpoints intelligently, SmartREM stops rooms being overcooled in the first place, keeping humidity and dew point in a safe range even when the room is empty.

We already have a keycard energy-control system — can we still save with SmartREM?

Yes. You can choose to bypass your keycard system and let SmartREM manage the HVAC directly, or leave it in place — either way, SmartREM detects real occupancy independently, so it still catches the wastage even when a guest leaves a card in the slot.

What's a typical ROI for SmartREM?

Typical payback is around 2 to 3 years, depending on your electricity tariff (higher tariffs mean higher savings value) and how much energy is currently being wasted in your guest rooms. We estimate savings based on your property's specific setup, then confirm those figures by installing a subset of rooms first, to verify you'll hit the projected savings before a full rollout.

Will SmartREM work with our VRV/VRF or split unit systems?

Yes — SmartREM works with almost all chillers, split units, and VRV/VRF systems. We confirm exact compatibility early in the conversation by reviewing your equipment's model numbers and thermostat details.