BU

Building System Optimizer

Carrier's Building System Optimizer (BSO) is a software tool that quickly compares energy cost performance of HVAC design alternatives in commercial buildings. It uses a streamlined interface to input high-level building and HVAC data, then runs detailed hour-by-hour energy analyses powered by Carrier's Hourly Analysis Program (HAP).
Latest: 1.7
Last checked: Oct 12, 2025 2:41pm
Rank: 6362/15140
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Overview

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License: ProprietaryWinget: Available

Version & Lifecycle

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Current: 1.7 Oldest supported: 1.50

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

Community Notes

Deployment note • May 20, 2026
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Building System Optimizer close-before-update deployment note

For managed Carrier Building System Optimizer updates, close Carrier Building System Optimizer before starting the installer. If the application is open, the update can fail with Exit Code 5, so deployments should prompt/close the running app before retrying the package.

Official source: Carrier Building System Optimizer software page.

Release Notes & Updates

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Avg cadence:
Updates • 0

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Also known as

Other names people use for this app — helps search and matching.

buildingsystemoptimizer

Notes

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Version 1.60 includes updates for ASHRAE standards and utility rate defaults as of 2020.