Tools for Early-Stage Decisions
Lightweight tools for architects, engineers, and designers, from early design through compliance modeling. No login, no paywall, and your files never leave the browser.
CBECC model viewers
Built to check our own Title 24 models faster. Drop in the file from your model; it’s parsed in the tab and nothing is uploaded.
Floor plans, true-projection elevations with exterior shading, and a construction schedule with net areas. Click any surface to see what’s assigned.
.cibd25xOpen →The building rendered in 3D: walls, roofs, floors, windows, doors, and skylights. Rotate it and confirm the geometry matches the design.
.cibd25x / XMLOpen →A schematic floor plan, elevations, and a compliance summary from a nonresidential compliance run.
AnalysisResults.xmlOpen →Area blocks by orientation plus a compliance summary. MF models carry no 3D coordinates, so this reads differently.
AnalysisResults.xmlOpen →Design & reference
Early-design benchmarks and references for the systems and equipment behind the model.
Building type, size, and zip code in; predicted EUI and where it lands against the 2030 Challenge target out.
End-use intensity for CalBEM new-construction prototypes across all 16 CEC climate zones. Filter here or grab the CSV.
What’s actually inside SZ-VAV, DOAS-FPFC, PVAV-PFPB, and the rest: coils, plant equipment, and how it’s plumbed.
Turn sensible and latent effectiveness into model inputs, SRE/TRE at standard test points, and a 90.1-2025 pass/fail check.
Tools we didn’t build, but couldn’t work without
Free, browser-based, and built by people who clearly do this work themselves. All credit to them.
A fast, free EPW viewer. Drop in any weather file and get timeseries, heatmaps, psychrometric charts, degree days, sun charts, and more. Our go-to for a quick read on a climate before a model even starts.
Open epwvis Sun anglesInteractive sun-path diagrams in orthographic or polar projections, with a world map overlay showing the sun's actual path over the site. A fast, visual gut-check on shading and solar angles.
Open Sun-Path Weather dataDrag in an EPW and see any weather metric as an animated 3D surface across day-of-year and hour-of-day, a different way to spot patterns than a flat chart.
Open Weather DataThese tools answer early questions.
We answer the harder ones.
When a project needs more than a quick estimate, we do the full analysis: energy modeling, compliance strategy, MEP Basis of Design.
Talk to us about your project