New HEED and Climate Consultant Builds Released (Feb. 2016)

New builds of HEED and Climate Consultant are available that have resolved the Weather Data download issues.

Please see their respective pages to download the latest builds. (Note: The Read EPW documentation on this site has also been updated.)

All our Energy Design Tools are fast, easy to use, highly graphic, and free. Each has a built in demonstration. Each has an automatic INSTALL routine or a READ.ME file explaining how to use it. You are welcome to publish the output and share copies provided that the Regents Copyright and Terms of Use remain unaltered.

HEED: Home Energy Efficient Design
This new easy-to-use Design Tool starts by automatically creating a reference house that meets California’s 2013 Energy Code. Then it creates a second home that is about 30% more Energy Efficient. You can design and compare up to nine different homes. HEED shows you graphics of how much energy and money and carbon you can save by trying various new Design options or by making Remodeling changes to your home. You can easily draw in the floor plan of your house, then click and drag windows to their best location on each wall. You can add trees and neighboring buildings and see an animation of sun shadows moving across your building. You can select from lists of standard wall and roof construction or you can input custom details. You can add high mass to temper indoor temperatures. Various other Passive Heating and Cooling options are available including ventilation, evaporative cooling, and passive solar heating. You can add Photovoltaic Panels and Solar Hot Water Collectors. HEED can automatically download climate data for thousands of locations around the world. Many kinds of Building Energy Performance data are displayed including bar charts that show how close your building is to Zero Net Energy. HEED self-installs on non-networked Windows XP or Mac OS X 10.6 or newer systems.
Go To HEED Page
View HEED Overview Tutorial (~20 min.)
(Also available in Spanish)
View HEED Basic Design Tutorial (~30 min.)
(Also available in Spanish)
View HEED Advanced Design Tutorial (~37 min.)
(Also available in Spanish)
Energy Design Tools is new on Twitter and FaceBook.
Climate Consultant is a simple to use, graphic-based computer program that helps architects, builders, contractor, homeowners, and students understand their local climate. It uses annual 8760 hour EPW format climate data that is made available at no cost by the Department of Energy for thousands of weather stations around the world. Climate Consultant translates this raw climate data into dozens of meaningful graphic displays.
The purpose is not simply to plot climate data, but rather to organize and represent this information in easy-to-understand ways that show the subtle attributes of climate, and its impact on built form. The goal is to help users create more energy efficient, more sustainable buildings, each of which is uniquely suited to its particular spot on this planet.
The Psychrometric Chart shown to the left is one of the more advanced features available in Climate Consultant. Each dot on the chart represents the temperature and humidity of each of the 8760 hours per year. Different Design Strategies are represented by specific zones on this chart. The percentage of hours that fall into each of the 16 different Design Strategy Zones gives a relative idea of the most effective passive heating or passive cooling strategies. Climate Consultant analyzes the distribution of this psychrometric data in each Design Strategy zone in order to create a unique list of Design Guidelines for a particular location.
If you wish to work with the full desktop or laptop version of Climate Consultant, select the appropriate installation version on the download page:
GO TO Climate Consultant DOWNLOAD PAGE
View Climate Consultant Overview Tutorial (~10 min.) authored by Carmen Trudell
The Psychrometric Chart Tutorial is a dynamic graphic and audio presentation that shows the relationship between air temperature and humidity, and how this influences human thermal comfort.
View Psychrometric Chart Tutorial (~4 min.) authored by Yasmin Bhattacharya
Climate Data for HEED and Climate Consultant is available for thousands of locations around the world on the EnergyPlus web site. (See READ-EPW (Automatic) or READ-EPW (Manually) for details.) The users manual and data format information for EPW weather data files can be downloaded from the EnergyPlus web site under the View Format Definition tab.
HEED and Climate Consultant no longer use the TMY format climate data, however some of our older design tools do, so we have written an Excel spread sheet that will convert EPW format data into our short form .TM2:
Download EPW conversion routine (epw2tmy.xcl)
The large TMY2 files also need to be converted to the compact version used by our older programs. To convert these files, run them through a program we have developed for either Dos or Windows:
Download the compressed Dos Version (tm2s5dos)
Download the compressed Windows Version (tm2s5win)
Read the Users Manual - instructions for downloading a TMY2 data file and for running it through the Windows versions of the conversion.
OPAQUE (generation 4 released Dec., 1999 [originally released July, 1989]) [over 8,064 downloads since Feb., 1999]
Opaque Thumbnail Draws a detail of wall or roof sections, calculates U-value, Time Lag, and Decrement Factor. It plots temperature drop through the section. Draws 2-D daily and 3-D annual plots of Outdoor and Sol-Air Temperatures, Normal and Total Surface Radiation, and Heat Flow through the envelope. It was originally called SOLAR-3. Unzip the download and install OPAQUE by clicking on SETUP.EXE, and to see the Users Manual open Manual.txt
Download OPAQUE (812KB)
SOLAR-2 (generation 4 released July, 1999, original release Sept., 1987) [over 9,668 downloads since Feb., 1999]
Solar-2 Thumbnail NOTE: Solar2 is no longer available. Most of its functions have been added to HEED and Climate Consultant. Plots sunlight penetrating through a window with any combination of rectangular fins and overhangs. Also plots hour-by-hour 3-D suns-eye view movie of the building. Prints annual tables of percent of window in full sun, radiation on glass, etc.
This contains class materials for a college level architecture course in Building Climatology taught at UCLA that uses the various Energy Design Tools listed above. It also contains ten Problem Sets that taken together help the student learn the principles of how to design s small energy efficient envelope dominated building in any climate.




Fires (View as HTML)
Fires (View as PDF)
Professor Murray Milne
Department of Architecture and Urban Design
University of California, Los Angeles
Los Angeles, California 90095-1467

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