OpenPH

Core PHPP data models and table view generation

Part of the openph UV workspace - a Python implementation of Passive House Planning Package (PHPP) calculations with exact numerical fidelity to Excel PHPP.

Purpose

OpenPH provides:

Data Models: Python classes representing PHPP building components (areas, constructions, rooms, climate, HVAC systems)
Table Rendering: Generate formatted output tables (.txt, .html) matching PHPP worksheet layouts for validation
Plugin Architecture: Extensible table system with auto-discovery via entry points
HBJSON Import: Convert Honeybee-PH JSON models to OpenPH data structures

Structure

openph/
├── src/
│   └── openph/         # Main package module
│       ├── model/      # PHPP data classes
│       ├── to_table/   # Table rendering system (plugin-based)
│       ├── from_HBJSON/# Honeybee-PH JSON import
│       └── phpp.py     # Main PHPP container class
├── tests/
└── pyproject.toml

Usage

Basic Model Creation

from openph.phpp import OpPhPHPP

# Create PHPP model
phpp = OpPhPHPP()

# Access model components
phpp.climate
phpp.areas
phpp.rooms
phpp.hvac

Table Rendering (Single Tables)

from openph.to_table import TableDisplayManager, TableNames

# Initialize table display manager
display = TableDisplayManager(phpp)

# Render individual tables
climate_table = display.get_table(TableNames.CLIMATE_ANNUAL)
climate_table.render(format="console")
climate_table.render(format="html", output_path="climate.html")

Table Grouping (Recommended)

Group related tables and render to a single file:

from openph.to_table import TableDisplayManager, TableNames

display = TableDisplayManager(phpp)

# Create logical groups
climate_group = display.create_group([
    TableNames.CLIMATE_ANNUAL,
    TableNames.CLIMATE_PEAK_LOAD,
    TableNames.CLIMATE_RADIATION_FACTORS,
])

# Render entire group to one file
climate_group.render(format="html", output_path="./climate_report.html")
climate_group.render(format="txt", output_path="./climate_report.txt")

Available Core Tables

Climate: CLIMATE_ANNUAL, CLIMATE_PEAK_LOAD, CLIMATE_RADIATION_FACTORS
Areas: AREAS_SUMMARY, AREAS_OPAQUE_SURFACE_*, AREAS_APERTURE_*, AREAS_SOLAR_REDUCTION_*
Rooms: ROOMS_VENTILATION_PROPERTIES, ROOMS_VENTILATION_SCHEDULE
Ventilation: VENTILATION_DUCT_INPUTS, VENTILATION_DUCT_RESULTS, VENTILATION_DUCT_*

See TableNames class for complete list.

Development

Part of UV workspace - see root context/ENVIRONMENT.md:

uv sync                      # Install all workspace packages
uv run pytest openph/tests/  # Run tests

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