Hospitality // Client Project

Hotel Energy Use:
19% Lower Costs.

We built a practical Hospitality solution combining heterogeneous edge data collection, PMS-aware load automation, and traceable energy monitoring. The project delivered 19% Energy Reduction and 11mo ROI Period.

Key Results RESULTS
19%
Energy Reduction
Reactive BMS
11mo
ROI Period
Payback Speed
100%
Comfort Score
ISO 14001 READY

Trusted by teams building ambitious products

What We Set Out to Improve.

Industry
Hospitality

Global resort portfolio requiring carbon footprint reduction while protecting 5-star service standards.

How We Worked
Dedicated product team

IoT Systems Architect + Edge AI Engineer + Cloud System Lead embedded within Operations.

Goal
Sustainability & Day-to-day Efficiency

Automating HVAC and lighting cycles based on live guest occupancy and arrival monitoring.

What We Built
AI-powered IoT Network

A practical solution designed around the client’s existing tools, teams, and day-to-day workflow.

What Was Getting in the Way.

The client’s older Building Management Systems (BMS) were entirely reactive, relying on manual set-points or basic motion sensors that failed to differentiate between brief staff entries and guest presence. HVAC units ran at full capacity in empty suites to ensure instant comfort upon guest entry, wasting millions in seasonal Operating costs.

The biggest issues were energy volatility, day-to-day overhead, and sustainability challenge. The team needed a faster, clearer way to manage the work while keeping the right checks in place.

Energy Volatility
Massive peaks during guest check-in windows created high-demand surcharges from local utility grids.
Day-to-day Overhead
Older systems required constant manual adjustment by facilities teams, leading to human error and inefficiency.
Sustainability Challenge
Lack of detailed data made it impossible to achieve verified green certifications (LEED/ISO) required for professional investors.
The Solution

What We Built.

01
Heterogeneous Edge Data Collection
Introduced unified gateways to normalize data from different IoT sensors (BACnet, Modbus, Z-Wave) into a single event stream.
Key details
Protocol MQTT Native
Encryption TLS 1.3
Processing Local Edge
02
PMS-Aware Load Automation
Built an AI assistant that monitors guest check-in/out events to pre-cool or drift room temperatures automatically.
Key details
Engine AI Assisted
Response time Sub Second
Logic Prescriptive
03
Traceable Energy Monitoring
Every set-point change and energy savings event is logged to provide an auditable trail for ESG compliance and carbon reporting.
Key details
Standard ISO 14001
Audit Traceable Data
Reporting Live
Before and After

How the Workflow Improved.

Area
Before
After
Control Logic

Static Schedules

HVAC runs on fixed timers or basic motion sensors, ignoring real guest reservation status.

Predictive Prioritization

Loads shift based on arrival times, weather forecasts, and historical occupancy patterns.

Data Integrity

Siloed Systems

No communication between front-desk software and building hardware.

Unified Connected Data Platform

Live synchronization between PMS, IoT, and Utility pricing via an automatic bridge.

Cost Impact

High Peak Usage

Property-wide surges caused expensive utility demand spikes.

Peak Shaving

Automated load balancing across the property reduces peak demand charges by 15%.

Key Features

What Made the Solution Useful.

AI Assisted

Automated Thermal Drift

The AI calculates the optimal energy-saving drift for empty rooms based on the time required to return to comfort standards.

Business impact
Zero Guest Complaints
Traceable Data

ESG Transparency Ledger

Automated carbon savings calculation per guest night, satisfying regulatory ESG reporting mandates.

Business impact
LEED Gold Path
Live Updates

Live Demand Response

IoT Network automatically sheds non-critical energy load when utility prices spike into high-cost tiers.

Business impact
19% Lower Bills
Faster Delivery

How We Reduced Build Time.

Tested foundations helped the team spend less time on setup and more time on the parts that made this product useful.

What accelerated the work

4 reusable building blocks
01

Edge Gateway Module

A tested starting point for edge gateway module reduced repeated setup work.

02

PMS Connectivity Module

Reusable work for pms connectivity module let the team focus more time on the client’s specific needs.

03

IoT Monitoring Platform

This made it easier to add iot monitoring platform without rebuilding common foundations.

04

Utility FinOps Module

A tested starting point for utility finops module reduced repeated setup work.

Results

The Business Difference.

A straightforward before-and-after view of what changed for the team and their customers.

RESULT: SUSTAINABILITY01

Annual Energy Savings

Direct reduction in kilowatt-hour consumption across the property portfolio via predictive load management.

Older BMSReactive
Coretus AI19% Lower
Outcome19% Operating costs Reduction
RESULT: RELIABILITY02

Device Response Response Time

Ready to grow edge processing ensures that room set-points adjust within moments of guest check-in.

Standard Cloud2.5s
Coretus Edge180ms
Outcome14x Faster Response
RESULT: OPS EFFICIENCY03

Maintenance Downtime

Predictive maintenance alerts detected HVAC motor failures 3 weeks before total system failure in 85% of cases.

Target95%
Coretus99.2%
Outcome99.2% Uptime
Results19% Operating costs Reduction • 14x Faster Response
Trust and Control

How We Kept It Safe and Reliable.

01
Data Privacy
PMS data is scrubbed of personal information. Only occupancy status and arrival timestamps are transmitted to the IoT Network.
Business SECURE
02
Grid Resilience
Edge-first processing ensures the Smart Grid stays functional even during WAN outages.
Live SYNC
03
Scale System design
Cloud-based monitoring hub supports 100,000+ IoT devices across global regions simultaneously.
Ready to Grow
04
Code and IP Ownership
Coretus provides 100% IP ownership of all custom load-automation models and gateway drivers.
100% OWNED
Client Testimonial

In their own words.

Coretus didnt just save us money, they automated our transition to carbon neutrality. Their predictive smart grid integrated perfectly with our luxury standards, proving that sustainability doesnt have to mean a loss in guest comfort.

Turn Operations into a Valuable Asset.

Have a similar challenge? We can help you plan and build a practical Hospitality solution around your goals, budget, and existing systems.

SOC2 & LEED Aligned

19% Energy Operating costs Savings

100% IP & Model Ownership