Building System Optimizer (BSO)

Evaluate energy performance in minutes

Carrier's Building System Optimizer (BSO) quickly compares the energy cost performance of HVAC design alternatives, helping you make informed decisions during the schematic design phase of building projects.

Request a free trial

Streamlined energy analysis with BSO

With a streamlined interface, BSO requires only high-level inputs such as location, building details, HVAC equipment and utility prices. A complete analysis of multiple alternatives can be configured in as little as 5 to 10 minutes. BSO then converts your inputs into a detailed dataset equivalent to a full HAP project.

This detailed input data is used in the HAP simulation engine to run a detailed hour-by-hour energy analysis of your design alternatives. With this scheme, BSO harnesses the power and accuracy of a HAP energy model in a form that is fast and easy to use. That’s why we say the Building System Optimizer is ‘powered by HAP’.

Pricing: $395 US / $505 CAN

How Does It Work?

Step 1: Define Weather Data

Select your building's location using map images or drop-down lists. This establishes hour-by-hour weather data for over 500 cities, ensuring accurate simulation for your energy analysis.

Step 2: Define Building Data

Describe your building using a top-down approach. Specify type, shape, dimensions, zoning, envelope details and internal heat gains and schedules. The program calculates areas, orientations and internal heat gain profiles automatically, streamlining the setup process. Extensive default data for key building verticals, ASHRAE Standard 62.1 and ASHRAE Standards 90.1 are provided.

Step 3: Define HVAC Systems & Equipment

Configure your HVAC alternatives. A streamlined top-down approach is used to select equipment types, component configuration, efficiencies and controls. Visual system diagrams provide immediate feedback as you input data. From this data the program generates detailed system definitions for air-side, chilled water and hot water plants.

Step 4: Define Utility Rates

Input utility prices either as simple flat prices, or detailed rates including energy and demand charges. For simple rates, default data for US state average utility prices is offered. For detailed rates, the program asks high-level questions about the rate components and then automatically configures a complete rate structure model.

Step 5: Generate Reports

Run the energy model to compare HVAC alternatives. Reports include energy use and cost annual summaries, month-by-month component energy use and cost breakdowns and annual CO2 emissions, helping you identify the most efficient design with professional, easy-to-read formats.

Get a free 60-day trial of eDesign software

eDesign Suite is a collection of software programs created specifically for the HVAC system designer. These programs are tailored to increase productivity and accuracy, improve analysis capabilities and job documentation, and add a level of 'marketability' to a designer's estimates.

Register for eDesign training

Software training courses are available through out the year and in cities across the United States. Additional training is also available from Carrier University.

Order eDesign software

eDesign Suite Software is available on a license basis. Licensed software entitles the licensee to use the software, to receive regular program updates and to receive technical support from our staff of HVAC engineers.

man using desktop computer to look at building plans

Find eDesign support

Working late into the night and need a quick answer, or have a unique application that requires advice? Chances are, the resources on this page can provide the answer.

man and woman looking at laptop in office setting

Download eDesign software

Linked here are the current software downloads from Carrier. Release sheets and other resource material is also provided.

Other eDesign Programs

Block Load

Building System Optimizer

Engineering Economic Analysis

Hourly Analysis Program

Refrigerant Piping Design

System Design Load

PLV Pro

Need assistance?

Find an expert

Carrier’s expert network is here to guide you toward the right HVAC service solution for your commercial needs. Maximize energy efficiency, improve indoor air quality and secure long-term system reliability with support you can trust.