Building Energy Software Tools
Formerly hosted by US Dept. of Energy    

Total Listed Programs: 155
See how much energy and money and carbon you can save by making various design or remodeling changes to your home with this free new easy-to-use program. You can draw in the floor plan of your own house, then click and drag your windows to their correct location.
  1. Whole-building Energy Simulation
  2. Energy Conservation Measures
  3. Solar & Photovoltaic Analysis
Last Software Update: 17 December 2015
Last Entry Update:
17 December 2015

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Door to door and other delivery management enterprise mobility solution, designed to bring efficiency in distribution.
  1. Other
Last Software Update: 20 February 2017
Last Entry Update:
20 February 2017

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From data collection, to measure analysis, to reporting - OptiMiser Commercial puts the entire audit cycle at your fingertips, eliminating hours of spreadsheet manipulation and report preparation.
  1. Load Calculations
  2. Energy Conservation Measures
  3. Building Energy Auditing
Last Software Update: 01 March 2017
Last Entry Update:
07 March 2017

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Calculate the optimal design configuration for commercial vertical ground-source heat pumps within minutes at a fraction of the cost of other software.
  1. HVAC System Selection and Sizing
  2. Parametrics & Optimization
  3. Energy Conservation Measures
Last Software Update: 03 January 2016
Last Entry Update:
04 January 2016

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EnExPlan is a powerful and intuitive do-it-yourself energy saving software for building owners and managers with medium to large portfolios of buildings.
  1. Whole-building Energy Simulation
  2. Load Calculations
  3. Energy Conservation Measures
Last Software Update: 10 October 2015
Last Entry Update:
03 October 2015

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SEMERGY® is a Web-based building optimization system that supports the planning of energy-efficient construction and refurbishment projects.
  1. Building Energy Auditing
  2. Building Energy Benchmarking
  3. Detailed Envelope Simulation
Last Software Update: 28 December 2015
Last Entry Update:
01 February 2016

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BEAVER is a building energy simulation program that provides for user friendly input of data, processing and viewing of the results. It interfaces with the Air conditioning Load Estimation program CAMEL thereby saving time with re-entering the building construction details and internal loads.
  1. Whole-building Energy Simulation
  2. Code Compliance
  3. Weather Data & Climate Analysis
Last Software Update: 12 October 2015
Last Entry Update:
12 October 2015

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A quick energy standard-conformance design tool with graphic interface for whole-building annual energy simulations for residential and commercial buildings.
  1. Code Compliance
Last Software Update: 30 March 2015
Last Entry Update:
31 March 2015

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www.pipeflow.com - Pipe Flow Expert Software for pipe system design with fluid flow and pressure drop calculations.
  1. HVAC System Selection and Sizing
Last Software Update: 02 November 2015
Last Entry Update:
22 December 2015

Ratings

5
Average: 5 (1 vote)

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Calculates temperature distributions, heat flows and (optionally) vapor diffusion flows in building structures - particularly those with thermal heat bridges
  1. Whole-building Energy Simulation
  2. Parametrics & Optimization
  3. Ratings and Certificates
Last Software Update: 19 May 2016
Last Entry Update:
17 August 2016

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Research tool for use in the steady-state simulation and design analysis of air-to-air heat pumps and air conditioners. The program can be used with most of the newer HFC refrigerants as well as with HCFCs and CFCs.
  1. HVAC System Selection and Sizing
  2. Parametrics & Optimization
  3. Detailed Component Simulation
Last Software Update: 20 July 2013
Last Entry Update:
02 February 2017

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Simulation model of a building HVAC mechanical system plus HVAC controls, the building shell, the heating/cooling plant, and energy management and control system algorithms.
  1. HVAC System Selection and Sizing
Last Software Update: 30 June 2010
Last Entry Update:
16 December 2015

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Do psychrometric calculations in MS Excel
  1. Load Calculations
  2. Weather Data & Climate Analysis
  3. Building Energy Auditing
Last Software Update: 30 June 2010
Last Entry Update:
02 October 2015

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Designing supply duct systems can be tedious... it involves time consuming calculations and requires assumptions about fitting size and performance.
  1. Other
Last Software Update: 21 September 2012
Last Entry Update:
23 March 2016

Ratings

4
Average: 4 (1 vote)

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Design and optimization of solar thermal systems, based on the powerful TRNSYS simulation engine.

Detailed hourly-based simulation allows to prevent common design mistakes and to optimize Solar Thermal Systems.

Last Software Update: 30 June 2010
Last Entry Update:
18 June 2015

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Radiance is a suite of programs for the analysis and visualization of lighting and daylighting in design. Mainly developed at the Lawrence Berkeley National Laboratory under DOE funding. Additional development and contributions sponsored by ISE in Germany and EPFL & HSLU in Switzerland.
  1. Parametrics & Optimization
  2. Weather Data & Climate Analysis
  3. Lighting Simulation
Last Software Update: 18 September 2015
Last Entry Update:
17 November 2015

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Tas is an industry-leading building modelling and simulation tool, capable of performing fast dynamic thermal simulation for the world’s largest and most complex buildings, and allows designers to accurately simulate daylighting and predict energy consumption, CO2 emissions, operating costs and occu
  1. Whole-building Energy Simulation
  2. HVAC System Selection and Sizing
  3. Code Compliance
Last Software Update: 29 July 2015
Last Entry Update:
26 January 2016

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EnergyPlus is DOE's whole-building energy simulation engine.
  1. Whole-building Energy Simulation
  2. HVAC System Selection and Sizing
  3. Code Compliance
Last Software Update: 30 September 2015
Last Entry Update:
12 December 2015

Ratings

4.75
Average: 4.8 (4 votes)

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The OnGrid Tool helps PV solar energy companies create effective finanical presentations for their prospects.
  1. Utility Bill & Meter Data Analysis
  2. Other
Last Software Update: 12 October 2015
Last Entry Update:
12 October 2015

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An interactive design environment for building energy evaluation and optimization.
  1. Energy Conservation Measures
  2. Building Energy Auditing
  3. Detailed Envelope Simulation
Last Software Update: 21 April 2015
Last Entry Update:
06 October 2015

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EE4 CBIP is offered by Natural Resources Canada's Office of Energy Efficiency to building owners and developers for the design and construction of new commercial and institutional buildings that use 25% less energy than similar buildings built to the requirements of the Model National Energy Co
  1. Code Compliance
Last Software Update: 30 June 2010
Last Entry Update:
05 October 2015

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iAudit Pro has been replaced by Snugg Pro: http://snuggpro.com
  1. Whole-building Energy Simulation
  2. Energy Conservation Measures
  3. Utility Bill & Meter Data Analysis
Last Software Update: 03 October 2015
Last Entry Update:
13 December 2015

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0
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Solar Calculator is an application that calculates the 24 hour energy requirement of a household and based upon that calculates the number of solar panels and batteries required by the solar system.

  1. Load Calculations
Last Software Update: 30 June 2010
Last Entry Update:
18 June 2015

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0
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Dynamic energy simulation tool
  1. Whole-building Energy Simulation
  2. Load Calculations
  3. Ratings and Certificates
Last Software Update: 21 October 2015
Last Entry Update:
17 December 2015

Ratings

5
Average: 5 (1 vote)

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A customizable and simple building energy analysis tool, which may be used to facilitate ASHRAE Level 1 or 2 audits, and/or to explore how different measures impact energy performance.
  1. Energy Conservation Measures
  2. Building Energy Auditing
  3. Building Energy Benchmarking
Last Software Update: 30 January 2013
Last Entry Update:
05 October 2015

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TRNSYS - a component based transient simulation package.
  1. Whole-building Energy Simulation
  2. Parametrics & Optimization
  3. Detailed Component Simulation
Last Software Update: 15 September 2015
Last Entry Update:
18 July 2016

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ENER-WIN© is a Windows-based hourly energy simulation model for evaluating whole-building energy performance. The program features an interactive graphical interface for input and output. The simulation model uses algorithms that permit hour-by-hour energy calculations in minimal time.
  1. Code Compliance
Last Software Update: 30 June 2010
Last Entry Update:
07 November 2015

Ratings

3
Average: 3 (1 vote)

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Green Building Studio® (GBS) is Autodesk’s core whole building energy simulation engine, and powers the energy analysis for Autodesk Insight 360, Autodesk Revit, and Autodesk FormIt 360.
  1. Whole-building Energy Simulation
  2. Parametrics & Optimization
  3. Energy Conservation Measures
Last Software Update: 14 August 2015
Last Entry Update:
23 December 2015

Ratings

5
Average: 5 (1 vote)

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AGI32 is a three-dimensional lighting design and rendering program for electric lighting and daylight analysis. The software can produce predictive lighting system calculations simultaneously with accurate visualizations for any application of electric lighting and/or daylighting.

  1. Lighting Simulation
Last Software Update: 30 June 2010
Last Entry Update:
18 June 2015

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Global climate data atlas and database containing more than 1200 stations
  1. Weather Data & Climate Analysis
Last Software Update: 07 January 2014
Last Entry Update:
06 October 2015

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e!Sankey is a software solution for creating appealing Sankey diagrams depicting energy flows.
  1. Building Energy Auditing
  2. Other
Last Software Update: 05 November 2015
Last Entry Update:
11 November 2015

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Multi-parameter optimization program that works with all text-based building energy simulation programs, including EnergyPlus and TRNSYS.
  1. Parametrics & Optimization
Last Software Update: 08 December 2011
Last Entry Update:
16 December 2015

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Lesosai allows the calculation of environmental impacts of the energy consumption, taking into account the energy used in the building, but also the building's construction materials (Life Cycle Impacts Analysis / Environmental Assessment).
  1. Load Calculations
  2. Code Compliance
  3. Building Energy Auditing
Last Software Update: 16 September 2015
Last Entry Update:
03 October 2015

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No longer supported due to new CA regulations.
  1. Other
Last Software Update: 30 June 2010
Last Entry Update:
04 October 2015

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e-Bench™ has an impressive range of functionality that includes targeting and monitoring, invoice reconciliation, management reporting, carbon emission tracking & reporting, continuous commissioning, benchmarking and simulation.
Last Software Update: 02 February 2015
Last Entry Update:
02 February 2015

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Use <b>TRACE Load 700</b> software - the building and load design modules of TRACE 700, Trane Air Conditioning Economics - to evaluate the effect of building orientation, size, shape, and mass based on hourly weather data and the resulting heat-transfer characteristics of air and moistur
  1. Load Calculations
  2. Indoor Air Quality Simulation
Last Software Update: 15 October 2015
Last Entry Update:
23 March 2016

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CAMEL is one of the leading air conditioning load estimation and psychometrics programs available. It operates in the Northern and Southern hemisphere and has comprehensive copy and paste capability and detailed on screen Help
  1. Load Calculations
  2. HVAC System Selection and Sizing
Last Software Update: 12 October 2015
Last Entry Update:
12 October 2015

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EFEN is an energy analysis tool which uses EnergyPlus simulation engine.
  1. HVAC System Selection and Sizing
Last Software Update: 12 March 2015
Last Entry Update:
03 October 2015

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Provides dynamic temperature simulation of 1 to 15 room buildings, shelters, and cabinets over the course of 20 days. Useful for buildings accommodating heat dissipating equipment and/or people. Cooling and heating or power plant failure and later restoration can be simulated.
  1. Load Calculations
  2. Detailed Envelope Simulation
  3. Other
Last Software Update: 23 April 2017
Last Entry Update:
23 April 2017

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Calculates thermal performance of fenestration products
  1. Code Compliance
  2. Ratings and Certificates
  3. Detailed Component Simulation
Last Software Update: 10 December 2014
Last Entry Update:
02 October 2015

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