📊 ASHRAE 90.1 / IECC Space-by-Space Method (0.45-0.65 W/SqFt LPD Limits)

ASHRAE 90.1 Lighting Power Density (LPD) Calculator

Model commercial energy code compliance under ASHRAE 90.1 & IECC 2024 (Space-by-Space and Building Area Methods): calculate total connected lighting wattage, maximum allowable Lighting Power Density (LPD = 0.45 to 0.65 Watts/sq ft in offices, schools, and hospitals), automatic shutoff compliance, and lighting design consulting profits.

1. Project & Operating Inputs

Commercial Facility Floor Area (Square Feet e.g. 75,000 Sq Ft)

Design Lighting Power Density (Watts / Sq Ft e.g. 0.48 W/SqFt LED)

Customer Invoiced Fee for COMcheck / LPD Certification ($)

Photometric CAD Layout, Space-by-Space COMcheck Compliance Report ($)

2. Financial Breakdown & Yield

ASHRAE 90.1 LPD CODE COMPLIANCE

Turnkey Lighting Design & Audit Profit

Energy Consulting Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost