2,400 buildings
Running Ohmwood in 11 countries
Halvard Property
Northfield Schools
Linden & Vale
Quayside REIT
Mosswell Retail
Brightmoor Health
Tessaly Offices
Oakhurst Campus
Why it matters
Commercial buildings waste about a third of the energy they buy. Heating floors nobody is on, cooling rooms nobody booked, lighting halls at three in the morning. Ohmwood finds that waste every five minutes and quietly takes it back.
31%
Of building energy spent on empty space
Every 5 min
Each zone re-tuned to how it is used
0 new hardware
Works with the controls already installed
Where it runs
Built for buildings that never fully sleep.
Offices, schools, shops and campuses all waste energy in different ways. Ohmwood learns each one on its own terms.
Offices
−27%
Median energy saving after 12 months
Schools
−31%
Electricity across a 12-school trust
Retail
−21%
Average across 38 stores
Campuses
−24%
Heating and cooling on shared sites
How it works
Three steps. Then it runs itself.
No new sensors and no rip-and-replace. Ohmwood works with the controls your building already has, and your engineers can override it at any time.
01
Week 1
Connect
We link to your building management system over the network. No new sensors, no ceiling tiles lifted. Most sites are live within a week.
BACnet/IP
Modbus TCP
KNX
LonWorks
M-Bus meters
OPC UA
02
Weeks 2–3
Learn
For two weeks Ohmwood only watches. It maps how every zone is really used: badge swipes, bookings, weather and how fast each floor warms up.
03
Week 4 on
Tune
Then it starts adjusting, a little at a time, every five minutes. Each change is logged with the reason, and comfort limits are never crossed.
Floor 9 · East wing
Meeting rooms empty until 14:00
22.0° → 20.5°
Atrium lighting
Bright sun, 41,000 lux outside
100% → 60%
Chiller 2
Price peak expected at 13:00
Pre-cool 11:30
The platform
One quiet engine, five ways it pays.
Everything runs from the same five-minute loop, so comfort, cost, carbon and maintenance never pull against each other.
Impact
Measured on real meters, not promised in a deck.
Every figure below comes from utility meters before and after Ohmwood, normalised for weather and occupancy.
Energy use
−27%
Median drop across 2,400 buildings after 12 months
Payback
9 mo
Typical time to recover the first year of fees
Carbon avoided
14.8 kt
CO₂e avoided by customers last year
Comfort tickets
−41%
Fewer hot-and-cold complaints, not more
Integrations
Works with the building you already have.
Ohmwood speaks the protocols in your plant room and the systems your team already uses, so nothing gets ripped out.
BACnet/IP
Protocol
Modbus TCP
Protocol
KNX
Protocol
OPC UA
Protocol
M-Bus meters
Metering
DALI lighting
Protocol
LonWorks
Protocol
Utility meters
Data
Room booking
Occupancy
Badge access
Occupancy
Weather feed
Forecast
Tariff feed
Prices
Chat alerts
Notifications
Ticketing
Maintenance
Smart thermostats
Devices
Pricing
Priced per building. Paid back in months.
Every plan starts with two free weeks of learning. If the forecast saving doesn’t beat the fee, you walk away.
From the plant room
People who run buildings, on Ohmwood.
Facilities teams, energy managers and the occasional finance director.
We stopped arguing about thermostats. The building just got quieter, and the bill got smaller.
MK
Maya Kerr
Facilities Director, Quayside REIT
Two weeks of watching, then it started saving. The change log means I can explain every move to the board.
TR
Tomás Ribeiro
Head of Sustainability, Linden & Vale
It found a chiller valve that had been stuck open for a year. That one ticket paid for the whole pilot.
AB
Aisha Bello
Chief Engineer, Brightmoor Health
Thirty-eight stores, one dashboard on Monday morning. I finally know which shop needs a visit.
JL
Jonas Lindqvist
Operations Lead, Mosswell Retail
Our auditors asked for hourly Scope 2 data. We exported it in four minutes.
PN
Priya Nair
Finance Director, Tessaly Offices
Teachers didn’t notice anything. The heating bill did.
DO
Daniel Osei
Energy Manager, Northfield Schools
FAQ
Questions engineers ask first.
Still curious? Book a walkthrough and bring your hardest question.
No. Ohmwood reads and writes through your existing building management system. A few older sites add a small network gateway, which we ship pre-configured.
They always can. Any manual change wins, Ohmwood logs it, learns from it, and never fights your team.
You set a comfort band per zone. Ohmwood never steps outside it, and backs off the moment readings drift or a complaint is logged.
Most buildings are connected in a week and learn for two more. Savings usually show on the first full monthly bill after that.
Ohmwood connects outbound only, through an encrypted tunnel. We are ISO 27001 certified and never need inbound ports opened.
Offices, schools, hospitals, labs and retail with a building management system and at least 2,000 m². Smaller sites can join a portfolio plan.