Calculation engines

Verified calculation modules the agent calls during MEP design. Each engine runs server-side and returns auditable results — the agent never invents a number, and you can trace every result back to the inputs that produced it.

Energy & compliance

Standards-compliant energy modelling for UK building regulations and sustainability assessments.

SAP Standard Assessment Procedure for domestic dwellings — SAP 10.2 compliant.

live

EPC Energy Performance Certificate generation — domestic + commercial outputs.

live

SBEM Simplified Building Energy Model for non-domestic buildings — Part L compliance.

live

Electrical

Cable and circuit calculations against BS 7671 and project-level house standards.

Cable Calculations Voltage drop, current carrying capacity, protective device coordination — full BS 7671.

live

Lighting Calculations Lux levels, uniformity, glare and lumen output for every space — CIBSE LG and SLL compliant.

live

Mechanical

Heat-load, pressure-drop and sizing calculations driven by the live model and the project brief.

Thermal Calculations Heating & cooling loads, U-values, thermal bridging — CIBSE Guide A reference.

live

Pipe & Duct Sizing Velocity, pressure-drop and pipe-sizing tables for water, refrigerant, gas and ventilation runs.

live

Each engine is invoked through the Revit Copilot or Adelphos Chat with auditable inputs. Outputs are versioned and traceable to the model element, brief clause or system that drove them.