CASAMAST Foundations — Energy
Before it is a tourism platform or a home automation solution, CASAMAST is an energy chain: measure what is consumed, control what can be controlled, prove what has been saved. CSMART Hospitality, Smart Building and Smart Home all plug into it.
Measure, control, prove
The order matters. Controlling without measuring produces convictions; measuring without proving produces dashboards nobody reads twice.
1. Measure
Main metering and sub-metering by use and by zone: electricity, water, gas, heat and cooling. Data becomes the building's fourth utility — the one that makes the other three controllable.
- Communicating meters, LoRaWAN and protocol gateways
- Historisation at a usable time step
- Allocation by use, by unit and by occupant
2. Control
Three levels, applied as far as the building allows: local control, centralised supervision, then optimisation anticipating occupancy and outdoor conditions.
- Local: setpoint, range, frost protection, cut-off on opening
- Centralised: schedules, overrides, priorities
- Optimised: anticipation, load shifting, learned thermal inertia
3. Prove
A measurement and verification plan defined at audit stage: baseline period, indicators, comparison method and weather adjustments. This is what makes the payback defensible.
- Documented baseline
- Correction for occupancy and weather variations
- Periodic report usable by a funder
The three levels, explained plainly
Many buildings stop at the first level — a thermostat per room — and believe the job is done. Most of the gain, however, lies in moving from the second level to the third.
- Local controlTemperature and flow adjusted at the emitter. Essential, but blind to the rest of the building.
- Centralised supervisionSchedules, zones, overrides, priorities between uses. The building stops being a pile of independent rooms.
- OptimisationAnticipation from expected occupancy, weather and the building's real inertia. Start as late as possible, stop as early as possible.
- Load shifting and peaksShifting non-critical loads to shave demand peaks and reduce the capacity component of the bill.
Commonly integrated protocols and interfaces
Indicative list: the exact scope is set after surveying the equipment in place.
We connect to what is already there
An operating building already contains equipment, often from different brands and generations. Replacing all of it is rarely the best investment.
Our job is first to make what is installed talk, then to replace only what genuinely blocks performance. We document our choices so that you do not depend on us.
- Open protocols firstKNX, BACnet, Modbus, DALI, M‑Bus, LoRaWAN, Zigbee, Matter, MQTT.
- Integrated ecosystemsLoxone for automation and building management, Salto for access, Keycafe for physical keys.
- Documentation handed overDiagrams, addressing, configuration: you keep control of your installation.
- No imposed dependencyNo essential function depends on a subscription you could not stop.
Frequently asked questions about the energy base layer
Does everything have to be instrumented from the start?
No. We first instrument the heavy loads — heating, cooling, domestic hot water, large common areas — then go finer where the analysis justifies it.
Instrumenting everything at once is expensive and mostly produces noise.
Who owns the data?
You do. Your building's consumption data belongs to you, is exportable in an open format and stays accessible if you change supplier.
How is the payback calculated?
From a measured baseline, corrected for occupancy and weather variations. We would rather announce a defensible range and narrow it after the pilot than a single unverifiable figure.
Depending on scope, energy prices and the starting point, we observe paybacks ranging from a few months to a few years.
Let's talk about your property.
Thirty minutes is usually enough to scope a project: the guest journey you want, operating constraints, regulatory deadlines and a realistic order of magnitude for the payback. Two showhomes are open to visit, in La Londe-les-Maures and Les Arcs.