Sefaira
SketchUp-integrated energy and daylighting analysis plugin that runs full annual EnergyPlus and Radiance simulations without leaving the modeler.
Agent-hostileHard Lock-in
3.0 /5 composite score
C1 4/5 reflects published tiered subscription pricing and a trial, while RF2 and C2 1/5 reflect a GUI plugin workflow with no API, CLI, or scripting surface. The integration surface is SketchUp and Revit, and RF3 reflects the proprietary core model format.
Solid
Rubric Scorecard
| Criterion | Score | Evidence |
|---|---|---|
| Value for the price | 4/5 | Subscription, from $119 Source → |
| Agent Friendliness | 1/5 | API: none |
| Ease of adoption | 3/5 | -- |
| Portability & lock-in | 4/5 | 1 file formats |
| Interoperability | 3/5 | 2 integrations |
Pricing
ModelSubscription
Entry price$119
Free tierno
Trialyes
Billing unitper-seat
TiersGo ($119), Pro ($349), Studio ($749)
How we verified this: we checked Sefaira against its live site and an independent source — buildinggreen.com. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-07.
Evidence
File formats
| Format | Direction | Support |
|---|---|---|
| proprietary | unknown | unknown |
Integrations
SketchUp Revit
Sources
Alternatives in Energy Analysis
Free, open-source EnergyPlus front-end from NREL with a SketchUp plugin, a Measures library for parametric analysis, and Radiance daylighting support.
4.4/5
SaaS whole-life-carbon data platform used by architecture and engineering firms to run rapid embodied, operational, refrigerant, and landscape carbon (LCA) assessments from concept through construction, benchmark portfolios, source low-carbon products via EPDs, and auto-generate AIA 2030 DDx compliance reports. Grew out of EHDD's in-house carbon tool (EPIC) and is separately licensed to power Autodesk Forma's Embodied Carbon Analysis feature.
4.4/5
Free open-source Grasshopper plugins for climate analysis, energy modeling, daylighting, CFD, and urban simulation, with a commercial cloud layer via Pollination.
4.0/5
Free, DOE-funded whole-building energy simulation engine with sub-hourly HVAC, lighting, and water modeling -- the engine under most commercial tools on this list.
4.0/5
See all Sefaira alternatives → ยท Compare all Energy Analysis tools →
Subscribe to Building Probable
Independent AEC + AI reviews & research, including Energy Analysis coverage -- the companion newsletter to buildingtech.pro.
Subscribe to Building Probable →