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Resort heating and cooling:
19% less energy used

We built an AI energy platform that connects a resort group's building sensors to its PMS, so heating, cooling and lighting adjust around guest arrivals and departures. Energy use fell 19%.

Client: Resolve ArchiveIndustry: HospitalityService: AI & Automation

Less energy used
19%
Payback period
11mo
Guest comfort score
100%

Overview

Project
at a glance

Industry
HospitalityA global portfolio of luxury resorts that needed to cut its carbon footprint without lowering 5-star service.
How we worked
Dedicated product teamAn IoT systems architect, an edge AI engineer and a cloud systems lead worked inside the client's operations team.
Goal
Lower energy use, same comfortRun heating, cooling and lighting automatically, based on live room occupancy and guest arrival times.
What we built
AI energy control networkEdge gateways and an AI controller that link the resorts' PMS, building sensors and utility pricing.

Client

Who we
built it for

Resolve Archive

Global portfolio of luxury resorts

About the client
A global portfolio of luxury resorts that needed to cut its carbon footprint without lowering 5-star service.
What they needed
Run heating, cooling and lighting automatically, based on live room occupancy and guest arrival times.
Where they were
The resorts' older building management systems (BMS) only reacted. They used manual set-points or basic motion sensors that could not tell a quick staff visit from a guest in the room. To make sure suites felt right the moment a guest walked in, air conditioning ran at full power in empty rooms, wasting millions in seasonal operating costs.

Engagement snapshot

Industry
Hospitality
Service
AI & Automation
Engagement
Dedicated product team
Delivered
AI energy control network
Headline result
19% · Less energy used

The challenge

What was getting
in the way

The resorts' older building management systems (BMS) only reacted. They used manual set-points or basic motion sensors that could not tell a quick staff visit from a guest in the room. To make sure suites felt right the moment a guest walked in, air conditioning ran at full power in empty rooms, wasting millions in seasonal operating costs.

The front-desk software and the building equipment never shared data, so the HVAC had no idea when a guest was actually due to arrive.

  • Costly demand peaks

    Big spikes in energy use at check-in times triggered high-demand surcharges from local utilities.

  • Constant manual tweaking

    Facilities teams had to adjust the older systems by hand all the time, which led to mistakes and waste.

  • No data for green certification

    Without detailed energy data, the resorts could not achieve the verified LEED or ISO certifications that professional investors expected.

The solution

What
we built

  1. 01

    One stream for all building sensors

    We installed gateways that convert data from different sensor protocols (BACnet, Modbus, Z-Wave) into one event stream.

    Protocol
    MQTT
    Encryption
    TLS 1.3
    Processing
    On-site edge
  2. 02

    Room control linked to bookings

    An AI assistant reads check-in and check-out events from the PMS and pre-cools a room before arrival, or lets its temperature drift when it is empty.

    Engine
    AI assisted
    Response time
    Under a second
    Logic
    Acts automatically
  3. 03

    Traceable energy records

    Every set-point change and energy saving is logged, giving an auditable trail for ESG and carbon reporting.

    Standard
    ISO 14001
    Audit
    Every change logged
    Reporting
    Live

Key features

What made it
useful

  • SMART CLIMATE

    Pre-cools rooms around guest arrivals

    AI reads check-ins from the PMS to pre-cool rooms before arrival and let empty rooms drift safely.

    Business impact

    19% less energy used

  • PREDICTIVE MAINTENANCE

    Predicts HVAC faults weeks ahead

    Predictive maintenance flags HVAC motor faults weeks ahead, and every energy saving is logged for ESG reporting.

    Business impact

    Uptime from 95% to 99.2%

  • AI assisted

    Smart temperature drift

    For each empty room, the AI works out how far the temperature can drift to save energy, based on how long it takes to get back to comfort.

    Business impact

    Zero guest complaints

  • Traceable

    ESG reporting ledger

    Carbon savings are calculated automatically for each guest night, which meets regulatory ESG reporting rules.

    Business impact

    A path to LEED Gold

  • Live updates

    Responding to utility prices

    When utility prices jump into a high-cost tier, the network switches off non-essential loads automatically.

    Business impact

    19% lower bills

Before and after

How the work
changed

How rooms are controlled

Before

Fixed schedules

HVAC ran on fixed timers or basic motion sensors and ignored whether a guest was booked in.

After

Planned around arrivals

Energy use shifts with arrival times, weather forecasts and past occupancy patterns.

Connected data

Before

Separate systems

The front-desk software and building hardware never talked to each other.

After

One connected platform

The PMS, IoT sensors and utility pricing stay in sync through an automatic bridge.

Cost

Before

High peak usage

Property-wide surges caused expensive spikes in utility demand charges.

After

Lower peaks

Automatic load balancing across each property cuts peak demand charges by 15%.

Results

The business
difference

  1. Sustainability

    19% Operating Cost Reduction

    Energy use and cost

    Predictive load management cut kilowatt-hour use across the portfolio, and energy costs fell 19%.

    Before: ReactiveAfter: 19% Lower

  2. Speed

    14x Faster Response

    Device response time

    Edge processing changes room set-points within moments of a guest checking in.

    Before: 2.5sAfter: 180ms

  3. Efficiency

    99.2% Uptime

    Equipment uptime

    In 85% of cases, predictive maintenance alerts caught HVAC motor faults 3 weeks before the system failed.

    Before: 95%After: 99.2%

Testimonial

What the client
says

“Energy use across our resorts is down 19% and peak demand charges are 15% lower. Rooms pre-cool before guests arrive, HVAC faults show up weeks ahead, uptime rose from 95% to 99.2%, and payback took 11 months.”
Patricia MorganVP of Engineering and Facilities, Resolve Archive

Key results

  • 19% less energy used
  • 15% lower peak demand charges
  • 11-month payback
  • Uptime from 95% to 99.2%

Trust and control

How we kept it
safe and reliable

  • 01

    Guest privacy

    PMS data is scrubbed of personal information. Only occupancy status and arrival times reach the IoT network.

    Privacy
  • 02

    Keeps working offline

    Processing happens on site first, so room control keeps running even if the internet connection drops.

    Edge first
  • 03

    Built for large estates

    The cloud monitoring hub supports 100,000+ IoT devices across regions at the same time.

    Scales with demand
  • 04

    You own the models and drivers

    The client owns 100% of the IP in the custom load-control models and gateway drivers.

    100% owned

Faster delivery

Built on tested foundations

About 10 weeks of setup was saved by reusing these components, and the team spent it on the room control logic.

  • Edge gateway module

    Provided tested drivers for BACnet, Modbus and Z-Wave, which we adapted to each resort's equipment.

  • PMS connection module

    Passed check-in and check-out events to the AI controller, with personal details removed.

  • IoT monitoring platform

    Watched sensor and HVAC health across the portfolio and raised the predictive maintenance alerts.

  • Utility cost module

    Tracked live utility prices and demand charges, so the system knew when to shed load.

FAQ

Straight
answers

Have a different question? Ask it on a 30-minute call.

Book a call

Their older building management systems used fixed set-points and basic motion sensors that could not tell a quick staff visit from a guest in the room. To make sure suites felt right on arrival, air conditioning ran at full power in empty rooms, wasting millions in seasonal operating costs.

Cut energy waste without guests noticing

If your rooms are cooled whether anyone is booked in or not, we can help you link your PMS and building systems so energy follows real occupancy.