Model Before
You Build or Retrofit
You can have a whole-building thermal simulation that quantifies loads, comfort, and annual consumption. We ensure that every decision is tested in software before it costs you in reality. First, estimate your building’s energy, and if you needed more precision, request a simulation.
Peak Load Quick Check
Four inputs give a first-pass estimate of your building's thermal peak and annual demand. The calibrated model then refines it to ±10%.
From plans to validated numbers
Data intake
Plans, occupancy schedules, utility bills and local weather files (TMY3 / Meteonorm).
Model build
Geometry, envelope, glazing and internal gains assembled in EnergyPlus / OpenStudio.
Calibration
The model is tuned against real bills until deviation sits inside ±6%.
Scenario runs
Envelope upgrades, system options, setpoints and PV/battery interplay, tested side by side.
Report & roadmap
Every measure ranked by ROI, with inputs and assumptions logged line by line.
What lands in your inbox
Load report
Room-by-room heating & cooling peaks in kW, with the drivers behind each.
Annual energy
kWh/m²·yr split by end-use, with monthly profiles you can compare to bills.
Comfort analysis
Operative temperatures and overheating hours per zone, season by season.
System sizing
Equipment capacity with justified safety margins, no oversizing, no noise.
Calibration log
Bills vs model deviation table plus every assumption, versioned per file.
Retrofit roadmap
Measures ranked by payback and carbon, phased to your budget.
Ready when you are
Tell us about your building. We'll reply with a tailored scope, timeline, and a fixed quote within 48 hours.
A villa that argued with its boiler
Simulation showed the real enemy wasn't the boiler. It was the envelope and an oversized, short-cycling unit. The model tested three futures before a single euro was spent.
- Baseline: 42.6 MWh/yr thermal, 310 overheating hours.
- Envelope first: roof + glazing upgrade cut demand by a third.
- Right-sized plant: 62% smaller boiler, quieter and steadier.
See your building's numbers before you spend.
Send your plans and a year of bills. We'll return a calibrated model, a ranked roadmap and the math behind both.
Response within 24h · NDA on requestCommon questions
What exactly is building energy simulation?
It’s a physics-based digital twin of your building. We input your geometry, materials, climate data and usage schedules, then run thermodynamic equations to predict exactly how much energy it will consume and how comfortable it will be.
How accurate are your models?
Our calibrated models typically achieve a deviation of less than ±6% against actual utility bills. We don't just guess; we tune the model until it matches your historical reality before predicting the future.
What software do you use?
We use industry-standard engines like EnergyPlus and OpenStudio, wrapped in our own validated workflows. This ensures our deliverables are recognized by green building certifiers (LEED, BREEAM) and local authorities.
Do I need a simulation for a small residential project?
If you are doing a standard renovation, maybe not. But if you are adding complex systems (heat pumps, PV, batteries), changing the envelope drastically, or building a passive house, a simulation prevents costly oversizing and comfort issues.
How long does a typical simulation take?
A standard residential or small commercial project takes 5 to 10 working days from the moment we receive complete architectural plans and utility data. Larger or complex facilities are scoped individually.