Energy Savings
The Hidden Cost of Cooling Empty Hotel Rooms
Vacant rooms quietly run HVAC at full power for hours after checkout. Here is how that adds up across a property — and how to stop it.
Occupancy-Based Hotel Energy Automation™
You're Paying Full Price To Cool Rooms No One's Sleeping In.
Right now, somewhere in your hotel, an AC unit is running at full blast inside a room with nobody in it. No guest. No revenue. Just a meter spinning and money leaving your bank account.
Estimated US hotel energy waste — happening right now
$0
Ticking up every second you're not fixing it.
Get My Free Energy Loss Assessment
In under 2 minutes, see the exact dollar value of your empty-room waste — before you spend a dollar.
Hospitality-Only Focus
Built for hotels, by experts who understand hospitality.
Zero Thermostat Replacement
Works with your existing devices and systems.
100% Wireless
Quick install. Minimal disruption. Maximum results.
Multi-Property Dashboard
Control, monitor, and optimize all your properties in one place.
Trusted by leading hotels & resorts
The Hidden Profit Leak
The Most Expensive Room In Your Hotel Is The Empty One.
You optimize ADR. You optimize occupancy. You run promotions, train front desk, fine-tune OTA listings.
Then a guest checks out — and the room keeps running like someone's still in it.
Housekeeping finishes. Door closes. AC stays on. Hours pass. Sometimes a full day. The compressor doesn't know the room is empty. Your P&L does.
Multiply that by every vacant room, every night, across every season. That's not a rounding error. That's one of the largest silent costs on your entire operating statement — and almost no one is watching it.
So here's the only question that matters: What is an empty room costing you — every single night it sits unmonitored?
Hotel Energy Loss Assessment™
See The Number Before You Spend A Dollar.
In under 2 minutes, get a property-specific breakdown of exactly where your energy dollars are leaking — and what getting them back looks like.
- Estimated Annual Energy Waste (in dollars, not guesses)
- Realistic Recovery Potential
- HVAC Efficiency Gaps Specific To Your Property
- Estimated Payback Timeline
- Your Property's Benchmark Score vs. Similar Hotels
Get My Free Energy Loss Assessment
In under 2 minutes, see the exact dollar value of your empty-room waste — before you spend a dollar.
How It Works
Set It Once. It Works Every Night, Forever.
1
Guest Checks Out
Occupancy and door sensors detect the room is empty — instantly, automatically.
2
Energy-Saving Mode Engages
HVAC and lighting shift to pre-set efficiency levels. No staff involvement. No manual adjustment.
3
The Waste Stops
The room stops burning energy on nobody. Every empty hour now saves money instead of costing it.
4
Guest Returns
The room snaps back to full comfort before they even notice it changed.
No app for guests to use. No training for staff. No disruption to operations. It simply works — quietly, in the background, every night.
How The Hardware Works
Smart Hardware. Zero Disruption.
A wireless kit that drops into any room and starts saving — no thermostat swap, no rewiring.
Motion Detector
Wireless motion detectors are installed throughout the hotel room to provide full room coverage.
Universal System
EHA is compatible with all air conditioning, thermostats, and room layouts — requiring no alterations to hotel rooms.
CPU
With our wireless CPU, there's no need to change pre-existing thermostats.
Inside The Room
Everything Working Together, Wirelessly.
More Features
Connected to an exclusive monitoring network via WiFi which allows you to acquire and compile vital information in the system to create continuous improvement and good performance.
Wireless Door Sensor
Door sensors detect entry and exit instantly, helping control room temperature based on the habits of individual guests as they come and go.
Fast & Easy Installation
Installation is fast, easy, and can be done while a room is booked — preventing hotels from losing potential business during installation.
Wireless Lights Control
Optional wireless lighting control shuts off lights in unoccupied rooms and restores them automatically when guests return.
Wireless Motion Detection
Motion detectors provide full room coverage so the system always knows whether a room is truly occupied.
Why Hotels Choose ES Global
We Didn't Build A Smart Building System. We Built A Fix For One Specific Problem.
Generic building automation tries to do everything and disrupts everything. ES Global was engineered around a single obsession: stop paying to cool empty rooms — without the cost, time, or guest risk of a full system overhaul.
No Thermostat Replacement
Keep what you have. Skip the capex and the guest-facing disruption.
Smart Wireless Room Sensors
Track occupancy, temperature, and humidity with wireless sensors designed to improve comfort while reducing HVAC energy costs.
20-Minute Room Installation
Most guest rooms are upgraded in about 20 minutes without drilling walls, interrupting guests, or replacing equipment.
Trusted Hospitality Experts
With 50+ years of combined hospitality experience, ES Global delivers proven energy management solutions hotels trust.
Fast, Room-by-Room Deployment
Hours, not weeks. No construction crews, no "rooms out of service" signs.
100% Wireless
Nothing to wire into walls. Nothing to break during install.
Works With Your Existing HVAC
PTAC, VRF, split systems, chillers — built for hospitality's real-world equipment mix.
Remote Monitoring, Anywhere
Room status, settings, performance — from your phone, your office, your car.
One Dashboard, Every Property
Run 1 hotel or 100 the same way, from the same screen.
The Cost Of Waiting
Every Month You Don't Fix This, You're Funding It.
This isn't a "nice to have someday" project. It's a leak that compounds every single night you don't address it.
- ×HVAC keeps running on empty rooms, tonight and every night after
- ×Utility costs keep climbing — quietly, invisibly, permanently
- ×Engineering has no visibility into where the waste actually is
- ×Margins erode while occupancy and rate strategies get all the attention
- ×Every month of delay is a month of savings you'll never get back
The math doesn't reset. It only adds up.
Risk-free guarantee
We guarantee a minimum saving of 20% in energy consumption per room — or we return the investment.
Get My Free Hotel Energy Loss Assessment →
How We Compare
See Why Hotels Pick EHA.
| EHARecommended | Honeywell | Verdant | |
|---|---|---|---|
| Do I have to change my thermostat? | No | Yes | Yes |
| Can I control the lights? | Yes ($25 USD extra) | No | Yes ($80 USD extra) |
| What is the cost of the system? | Call us for details | From $500 USD | From $265 USD |
| How much can I save on average per room? | (±) 60% | (±) 15% | (±) 15% |
| What is the installation time? | (±) 30 min | + 2 hours | + 2 hours |
| Does it have a warranty? | Lifetime warranty* | 12 months | 12 months |
Real Hotel Results
Not Projections. Documented, Property-Level Outcomes.
Fiesta Inn
Up to 70%+ reduction in monitored room energy consumption
Verified at the room level, not estimated at the portfolio level.
View Full Case Study →
Westin Hotel
65%+ documented room-level savings
Documented savings at the room level, with zero guest comfort complaints recorded during the monitoring period.
View Full Case Study →
MegaStay
Multi-property rollout, measurable gains
Measurable operational efficiency gains across a multi-property rollout — proof the model scales beyond a single hotel.
View Full Case Study →These are individual property results. Your savings will depend on your occupancy patterns, climate, and HVAC setup — which is exactly what your free Energy Loss Assessment is for.
Guest Comfort, Protected
"What Happens To The Guest Experience?"
That's the first question every GM asks us. Good. It should be.
Here's the honest answer: guests never know it's there. The room returns to full comfort automatically before they walk back in. No delay. No cold room. No hot room. No front-desk calls about "the AC is broken."
You're not trading comfort for savings. You're recovering money guests were never benefiting from in the first place — because they weren't in the room.
Built For Every Stakeholder In The Building
One System. Every Seat At The Table.
Hotel Owners
Direct impact on operating expense and bottom-line profitability.
Directors of Engineering
Real control and visibility, without adding to your maintenance load.
Management Companies
One standard for energy performance across every property you operate.
Asset Managers
A direct, measurable lever on NOI — without capex-heavy renovation.
Resort Operators
Cut HVAC waste across large room counts without touching guest satisfaction scores.
Multi-Property Operators
Manage 5 properties or 500 from the same dashboard, with the same standard.
See Everything. From Anywhere.
Your Property's Energy Performance, In One Screen.
Occupancy Status
Door Activity
HVAC Status
Lighting Status
Temperature Conditions
Historical Reports
Cross-Property Benchmarking
One property or fifty — you finally get to see where the money's actually going, in real time.
Portfolio Overview
3 properties
Coastline Resort42% rooms eco
Downtown SuitesHigh occupancy
Airport Inn58% rooms eco
Avg. monitored savings↑ tracking
Frequently Asked Questions
Straight Answers To The Questions GMs Actually Ask.
No. The system operates entirely in the background. Rooms return to full comfort automatically before guests are back inside.
No. ES Global is designed to work without thermostat replacement — that's the point.
Deployment is wireless and room-by-room, designed specifically to minimize downtime and operational disruption.
A wide range of hospitality configurations — PTAC, VRF, split systems, and more. Your free assessment will confirm compatibility for your property.
Yes. The platform is built for centralized, multi-property monitoring and management from day one.
It varies by occupancy pattern and HVAC type — but most properties can identify measurable savings opportunities almost immediately after deployment, with documented savings building from there.
From The Blog
All articles →
Insights On Hotel Energy & Savings.
Practical guidance on cutting HVAC waste, benchmarking performance, and protecting guest comfort.
Technology
Why Thermostat Replacement Isn't Required to Save Energy
Ripping out thermostats is expensive, slow, and disruptive. Wireless occupancy automation works with the equipment you already have.
Operations
Protecting Guest Comfort While Cutting HVAC Waste
The first question every GM asks is what happens to the guest experience. The honest answer: guests never notice.
Right Now, Somewhere In Your Hotel, Money Is Leaking Out Of An Empty Room.
Every night you wait is another night of recoverable profit you don't recover. The fix doesn't require new thermostats, construction, or guest disruption — it just requires you to start.
No obligation. No sales pressure. Just your number.
Contact Us
Let's Talk About Your Property.
Tell us a little about your hotel and we'll get back to you with next steps.
