Getting Started with Web Service Tools for Whole

Autodesk Green Building Studio®
Getting Started with Web
Service Tools for Whole
Building Analysis
Customers who add subscription to any of the
following Autodesk products can access1 whole
building energy, water and carbon analysis tools
via the Autodesk® Green Building Studio® webbased service for the duration of their subscription.
• Autodesk® Revit® Architecture
• AutoCAD® Revit® Architecture Suite
• Autodesk® Revit® MEP – Standalone, Japan Only
• AutoCAD® Revit® MEP Suite
• Autodesk® Ecotect® Analysis
• AutoCAD® MEP
• AutoCAD® Architecture
• Autodesk® Design Academy
• Autodesk® Education Master Suite
• Autodesk® Education Suite for Architecture & Engineering
• Autodesk® Education Suite for Civil & Structural Engineering
• Autodesk Building Design Suite Premium
• Autodesk Building Design Suite Ultimate
• T1 Multi-Flex
This document describes how to access your webservice account and manage projects, and
provides tips to help you get started.
1
Access to the Autodesk Green Building Studio web-based service is subject to the terms
of use that accompanies the service. For details, visit
https://gbs.autodesk.com/gbs/default.aspx .
Contents
Introduction......................................................................................................................... 4
Account Setup .................................................................................................................... 4
How do I access Autodesk Green Building Studio? ........................................................ 4
How the Web-based Service Works ................................................................................... 4
Installing the Web-Service Client .................................................................................... 5
Creating New Projects .................................................................................................... 5
Locate Your Project ..................................................................................................... 5
Share Project Data ...................................................................................................... 6
Project Information ...................................................................................................... 7
Managing Projects .......................................................................................................... 7
Creating a New Dashboard............................................................................................. 7
Adding Projects to a Dashboard ..................................................................................... 7
Managing Dashboards .................................................................................................... 8
Understanding Dashboard Results ................................................................................. 8
Exporting to the Web Service from Autodesk Revit-based Software for BIM ................ 10
Understand the Analysis Results...................................................................................... 10
Energy and Carbon Results .......................................................................................... 10
Estimated Energy and Cost Summary ...................................................................... 10
Energy End-Use Charts ............................................................................................ 11
Getting to Carbon Neutral ......................................................................................... 11
Carbon Neutral Potential ........................................................................................... 11
Electric Power Plant Sources .................................................................................... 11
Water Usage and Cost .............................................................................................. 12
Photovoltaic Potential ................................................................................................ 12
LEED Glazing Score ................................................................................................. 12
Wind Energy Potential ............................................................................................... 12
Natural Ventilation Potential ...................................................................................... 12
Building Summary ..................................................................................................... 12
Export and Download Data Files .................................................................................. 12
gbXML File ................................................................................................................ 13
VRML File ................................................................................................................. 13
DOE-2 File ................................................................................................................ 13
EnergyPlus File ......................................................................................................... 13
Weather File (Binary and CSV) ................................................................................. 13
Navigation Links ........................................................................................................... 13
Run List Link ............................................................................................................. 13
Design Alternatives Link ............................................................................................ 13
Notes Link ................................................................................................................. 13
Navigation Tabs ............................................................................................................ 14
U.S. EPA ENERGY STAR ........................................................................................ 14
Water Usage ............................................................................................................. 14
Photovoltaic Analysis ................................................................................................ 14
LEED Glazing ............................................................................................................ 14
Weather..................................................................................................................... 14
3D VRML View .......................................................................................................... 14
The VRML Model .......................................................................................................... 15
Design Alternatives .......................................................................................................... 15
The Design Alternatives Page ...................................................................................... 16
Adding Design Alternatives ........................................................................................... 16
Summary .......................................................................................................................... 17
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
Introduction
Autodesk® Green Building is a web-based service that includes industry leading building
energy and carbon analysis tools. Green Building Studio tools enable architects and
designers to evaluate the energy profiles and carbon footprints of various building designs.
Files are shared between engineering software programs and among engineers and architects
early in the design cycle, making sustainable design more efficient and cost effective.
This document describes how to access your Green Building Studio web-service account
and manage projects, and provides tips to help you get started.
Account Setup
Customers can contact their reseller to place any of the above products and/or suites on
Subscription. Non-Subscription access can be purchased on the Autodesk Green Building
Studio eStore at the end of a trial by clicking on the “Upgrade Your Account” link.
How do I access Autodesk Green Building Studio?
Autodesk Green Building Studio can be accessed at gbs.autodesk.com or through the
Autodesk Green Building Studio desktop client, which can be downloaded from the Green
Build Studio website.
Subscription users can sign in to Autodesk Green Building Studio with their Subscription
Center User ID and Password. Subscription users must have an existing Subscription
Center user account that includes one of the products listed above before they can access
Autodesk Green Building Studio.
User accounts are created by Contract Managers or Software Coordinators by sending an
invitation through the Subscription Center, or by the users themselves using “Create Your
Own Account” on the Subscription Center Sign In page.
For more details on how to manage your Green Building Studio account, refer to
“Questions and Answers for Autodesk Green Building Studio Subscription Entitlement”.
How the Web-based Service Works
Green Building Studio is an innovative building energy and carbon analysis web-based
service, which provides a user-friendly front end to powerful building energy analysis
software. All of the computationally intensive hourly simulations are carried out on remote
servers, and the results are provided to you in a web browser.
The web-based service will collect data from three sources:
1.
2.
®
Your Revit software model. All the building geometry comes from your model,
including the number of rooms, the connections between rooms, and their
relationship to the exterior, exposure, and aspect to the sun; and the shape and total
area of built surfaces or openings.
Your responses to a few basic questions. In order to explain the building’s use or
context, you will need to select a building type from a drop-down menu and enter the
project location. You will also have a chance to select a weather station for the
project, although the closest one is selected to be the default.
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
3.
Regionalized databases. Based on the above information, the Green Building
Studio web service extracts additional information about local weather conditions,
construction, and materials. The service automatically adds any information you have
not provided, so it can adapt to your requirements as your design evolves.
Installing the Web-Service Client
To access and run the web-based whole building analysis tools you use the Green
Building Studio Desktop client. It submits the green building extensible markup language
(gbXML) files created by the Revit software to the web service.
1.
2.
3.
Download the zip file containing the Green Building Studio Desktop client from
the Downloads page on the Autodesk Green Building Studio website.
Unzip the file and double-click the setup.exe file.
Once installed, the Green Building Studio Desktop client is displayed in your
Start Menu.
Now you are ready to create new projects on the web service, create designs using the
Revit platform for building information modeling (BIM), and analyze the performance of
conceptual building designs.
Hints and Tips
Creating New Projects
Once you sign in, you are on the My Projects page, and ready to add your first project.
Just click the New Project link on the top left of the project list. You must enter the Project
Name, select a Building Type from the list of approximately 30 typologies, and optionally
select a unique building schedule.
Locate Your Project
™
The web service incorporates Google Maps to facilitate entry of a new project and
selection of the appropriate
weather file. Enter your
project’s location (city and
state, territory, country or
postal code) in the Location
text box, and click the Find
Location button. Move the
green building icon to
change the location. When
you are satisfied with the
selected location, check the
checkbox below the map,
and click the Next button.
The next New Project
screen displays all the
weather files that the web
service has in the vicinity of
your project. Through this
screen you can explore each weather file’s degree day and design day characteristics and
select the appropriate one, though by default, the station closest to the building is
selected.
Revision Date: June 2011
The choice you make for
Building Type and Schedule
can have a significant impact
on your results. For example,
if you are modeling a mixeduse building and choose retail,
the analysis will assume
higher interior lighting loads
than if you choose office.
Furthermore, the default
schedules vary by building
type. A retail store by default
is assumed to be open more
hours per year than an office
building and hence will use
more energy.
Hints and Tips
C Design and H Design
are the outdoor cooling
and heating design
temperatures typically
used to size heating and
cooling equipment. HDD
and CDD are the heating
and cooling degree day
totals for the weather
location you have
chosen. Compare the
design and CDD/HDD
data for the available
weather files to help
determine which weather
file most closely
approximates the
weather for your site.
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
Stations are based on recent “actual year” weather data rather than TMY2 and CZ2
stations, which are based on 30-year averages of weather data.
Simply select the radio button to the right of the map to select the desired weather file,
and click the Next button.
The next screen, Select Weather Station, is where you specify additional address
information, as well as utility cost information. Make sure a location is entered, and click
the Get Utility Cost button to retrieve the electric and fuel cost defaults. These are based
on the previous year’s state, territory, or country average prices for fuel and electricity that
are published by the U.S. Department of Energy. Modify them if you have more relevant
data. In cases where no default utility rates are available, you must enter a value before
continuing. Check with your local utility provider
for the current rates.
Hints and Tips
Your local utility may have
its current rates posted on
its website. In some cases,
natural gas is priced per unit
volume. If gas is priced per
cubic foot, multiply the price
per cubic foot by 100 to get
the approximate price per
therm.
1 therm = 100,000 Btu.
Share Project Data
The web-service enables you to share
information about your project with design team
members and Green Building Studio partners
who may provide more information
on how their products can assist
you with your building design. The
web service needs to know who has
authorized you to share project data if you are not the owner of the building information
you are submitting. The authorizing agent you specify will also receive a copy of the
Autodesk Green Building Studio Terms of Use (TOU).
Revision Date: June 2011
The price of natural gas can
vary widely by season. Use
the price of gas that is
typical during the heating
season if most of your gas
use is for space heating.
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
Project Information
Finally, for new projects you need to specify the budget, current design phase, the
estimated construction start date, and if the project has a green building goal.
After you create a new project, you will receive an email containing the Green Building
Studio TOU for your records.
Managing Projects
For every project in your list, choices are available to access additional information.
Set Up Project Defaults lets you customize project defaults such as internal gains,
construction materials, glazing type, cooling and heating set points, and more. This can be
useful when using the Green Building Studio web service to analyze an existing building
that has less efficient systems or less insulation, or if the default values do not represent
your project.
Edit Project Details allows you to view and edit project information.
Manage Project Members facilitates managing project team members. You can invite
other validated subscribers on your design team to participate in the analysis, and you can
individually assign them rights to the project (Read-Only, Download and Read-Only, Add
Runs or Manager).
Creating a New Dashboard
Green Building Studio uses the concept of a dashboard to allow you to view analysis
results from multiple projects at the same time. Dashboards let you access, evaluate and
compare energy, carbon, and water analysis results of many different projects side-byside. You can organize your projects in different dashboards by location, building type,
climate, or other important characteristics.
Create a new dashboard by selecting projects from the Projects list and adding them to
the dashboard.
1. Click the My Projects tab.
2. Select one or more projects to add to the dashboard.
3. Click Add to Dashboard.
4. Click New Dashboard and enter a name for the new dashboard.
5. Click Continue.
Adding Projects to a Dashboard
You can add projects to a new dashboard or to an existing dashboard. Adding a project
adds all runs in that project to the dashboard.
1. Click the Dashboards tab.
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
2.
3.
Select the projects to add to the dashboard.
Click Add to Dashboard.
Managing Dashboards
You can remove projects from dashboards, selectively add new project runs to a
dashboard, delete dashboards, and edit display options. Refer to the online Green
Building Studio Help for more details.
Understanding Dashboard Results
Hints and Tips
The dashboard results can be displayed graphically. Four different charts are available:
Energy Use Intensity (EUI); Annual Energy Consumption; Annual Energy Cost; and
Average Energy vs Degree Days.
A location's Heating Degree
Days (HDD) is a metric related
to heating energy. It is
calculated using the daily mean
temperature. The daily mean
temperature is the sum of the
maximum and minimum
temperatures divided by two.
For a 65 degree Farenheit (65
°F) threshold, each degree of
the mean temperature that is
below 65 °F is counted as one
Heating Degree Day.
The first three charts display each project in your dashboard along the Y axis, and the
results for each run within that project along the X axis. The baseline run is shown as a
black triangle and the alternative runs are grey triangles.
For example, if the maximum
temperature is 70 °F and the
minimum temperature is 52 °
F, the Heating Degree Days
total is four days:
70 + 52 = 122; 122 ÷ 2 = 61;
65 - 61 = 4
If the daily mean temperature
is 65 °F or higher, the Heating
Degree Days total is zero.
A similar metric, Cooling
Degree Day, is used regarding
cooling energy requirements.
For example, using a 70 °F
Cooling Degree Day threshold,
each degree of mean
temperature above 70 °F is
counted as one Cooling Degree
Day.
For example, if the maximum
temperature is 90 °F and the
minimum temperature is 68 °F,
the Cooling Degree Days total
is nine days:
90 + 68 = 158; 158 ÷ 2 = 79;
79 - 70 = 9
When alternate run results (triangles) are located fairly close to the baseline result, there
is not much difference between run data. This type of result indicates that the alternates
explored may not offer much opportunity for making significant reductions in energy use.
In this case, additional runs may need to be explored to find additional energy-saving
Revision Date: June 2011
If the daily mean temperature
is 70 °F or lower, the cooling
degree day total is zero.
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
scenarios. When alternate run results (triangles) are farther apart from the baseline, there
is probably a greater opportunity for making significant reductions in energy use. These
are the projects that warrant further investigation and analysis because they can most
likely produce the greatest reductions in energy use.
The Average Energy vs Degree Days chart shows how much energy relative to the annual
cooling and heating degree days is required annually on projects. It illustrates the possible
relationship between how much energy a project uses annually, and the weather. Circles
on the chart indicate the average energy cost for each run in a project relative to the other
projects on the chart. The left side of the chart lists Cooling Degree Days, and the bottom
shows Heating Degree Days. Mousing over a circle displays the project name and the
annual energy usage.
The diameter or size of a project’s circle varies depending to its average energy cost; the
higher the cost, the larger the circle. A project with circles located on the lower right side
of the chart indicates a building model that is in a heating dominated climate; in other
words, it could have a need for a lot of heating, but not much need for cooling. Generally,
one would expect buildings located in regions with very high heating and/or cooling
degree days use more energy to heat and cool the building, as compared to buildings
located in milder climates. The opposite is a project showing results (circles) on the upper
left side of the chart, this indicates a building model that is probably located in a cooling
dominated climate; in other words, it has a need for a lot of cooling, but not much need for
heating.
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
Exporting to the Web Service from Autodesk Revitbased Software for BIM
1.
2.
3.
4.
5.
6.
Export the gbXML by going to the Revit start icon, choose Export>gbXML
From your computer’s start menu, launch the Green Building Studio Desktop
client.
Enter your Autodesk ID and Password and click the Sign In button. You must be
connected to the internet for this to work.
If you have projects in your Green Building Studio account, they are listed in the
Project list. Simply select the project to which this model is assigned.
Select the gbXML file you exported from Revit.
Click Create New Run to initiate the simulations and get results.
The web-based service first checks your Revit model for missing data or errors, and if
problems are found, an error message appears. Assuming there are no errors, a browser
window opens presenting you with the status of your whole building energy, water, and
carbon analysis.
The length of time it takes to run the simulations using the web service typically varies
from less than a minute to 5 or 10 minutes. The run time depends on the server traffic,
complexity of the model, and the number of surfaces, windows, rooms, spaces, and
zones. Most runs are complete within minutes. Very large models (with gbXML files more
than 8 to 12 MB) may take up to an hour to run. This is a good reason to start analysis in
the early stages of design with a simple model. Once your run is complete you will see a
results page.
Understand the Analysis Results
The results pages provide accurate yet easy-to-understand summary information on
building energy and resource use, carbon emissions, simulation assumptions,
performance metrics, and costs. These results can be used to compare the energy costs
of multiple building design scenarios at the conceptual design stage. The following serves
as a guide to help you interpret the results effectively.
Energy and Carbon Results
The general information section at the top of the page describes the project scenario,
building type, geographic location, and gross floor area.
Estimated Energy and Cost Summary
Most building energy cost comparisons and early compliance decisions can be made
using annualized energy cost and consumption information. Costs are estimated using
statewide, territory, or country average utility rates, or the customized rates you may have
applied to the project.
The following estimated information is provided:
•
•
•
•
•
Annual energy cost.
Lifecycle energy costs (30 year).
Annual energy consumption (electric and gas).
Peak electric demand (kW).
Lifecycle energy consumption (electric and gas).
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
•
•
CO2 emissions are based on the on-site fuel use and the fuel sources for the
electricity in the region.
An equivalency using an SUV (driven 15,000 miles/year) is given to put the building’s
CO2 emissions into perspective.
Energy End-Use Charts
Further breakdowns of estimated energy use for major electric and gas end uses, such as
lighting, HVAC, and space-heating are provided in graphical format. Additional details
associated with each category can be seen by clicking on the pie charts.
Getting to Carbon Neutral
In addition to energy use and cost, the web service provides additional information
required to help design a carbon neutral building. This additional information includes the
following:
Carbon Neutral Potential
This section will summarize the estimated CO2 emissions for your building design and
identify the options to help reduce them. If your net CO2 emissions are less than zero,
there is a high potential for this building to be carbon neutral.
Electric Power Plant Sources
The U.S. Environmental Protection Agency has historical records for all the fuel and
emissions of all power plants in the United States and the Carbon Monitoring for Action
(CARMA) database has the carbon emissions data of more than 50,000 power plants
world-wide. This section summarizes the fuel sources for electricity generated in this
region. In order for a project to be carbon neutral, electricity consumption must be reduced
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
or offset using renewables by an amount equal to the portion of the electricity that comes
from fossil fuels.
Water Usage and Cost
A summary is given of the estimated water use in the building based on the number of
people in the building as well as the building type. Note that the water consumption is not
related to the number of fixtures.
Photovoltaic Potential
The web service automatically analyzes every exterior surface of the building, including
roofs, walls, and windows, for their estimated potential to generate electricity using
photovoltaics. Exterior shades are not currently included in the photovoltaic analysis. The
results of this analysis are summarized in this section. Note that this analysis assumes
that PVs can be installed on vertical as well as horizontal surfaces as long as the surface
generates significant amounts of PV power. See the PV tab for details on the surfaces
that are analyzed.
LEED Glazing Score
The LEED glazing score is the percentage of regularly occupied floor area that has a
Glazing Factor greater than 0.02. Note that the tool assumes the entire floor area of your
project to be regularly occupied unless you have defined some spaces through Revit MEP
as restrooms, corridors, storage, mechanical rooms, or other spaces not considered to be
regularly occupied by LEED. The score must be more than 75 percent to score LEED
points and achieve full benefit from daylighting controls throughout the building.
Wind Energy Potential
The estimated annual amount of electricity that can be generated from one 15-footdiameter wind turbine of conventional design.
Natural Ventilation Potential
The tool approximates the annual operating hours and energy required to mechanically
cool and ventilate the building. It also estimates the annual number of hours that outdoor
air could be used to naturally ventilate the building. Potential energy savings associated
with not running the mechanical cooling and ventilation system during this period are
projected, and finally, the net hours that cooling is required, even with natural ventilation,
are estimated.
Building Summary
Detailed statistics, assumptions, and information on building constructions are also
provided. This information allows the building designer to get an early assessment of code
compliance and rough estimates of equipment sizing requirements for heating, cooling,
and water heating, as well as window, wall, and floor area breakdowns.
Export and Download Data Files
The Green Building Studio web service provides the user with file download capabilities
that can be used to share information with other members of the design team who are
performing detailed engineering analyses, such as equipment sizing or design. The user
simply clicks on the links to access these items to download or navigate. Each file or link
is described below.
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
gbXML File
This link is to the fully populated gbXML file that contains the building information
necessary for an advanced energy simulation as well as the results from the Autodesk
Green Building Studio simulation. The gbXML file also includes information on the BIM
model and the local assumptions and building code information brought in through Green
Building Studio. This file can be used with design tools such as Trane’s Trace™ 700
application.
VRML File
Click this link to open the 3D VRML view in a new window or right-click it and choose
Save Target As… to download the file. See the “3D VRML View” section below for more
information.
DOE-2 File
This link exports the geometrically accurate DOE-2.2 input file that was generated by the
web service for the energy simulation. It can be used downstream as the starting point for
other more detailed engineering analysis. This file can be directly imported into the free
eQUEST DOE-2 application at www.doe2.com.
EnergyPlus File
This link exports the EnergyPlus™ file that was generated by the web service. It can be
used as a starting point for more detailed engineering analyses. The EnergyPlus
simulation program can be downloaded for free at www.energyplus.gov.
Weather File (Binary and CSV)
The DOE-2 binary weather file used in the simulation can be downloaded for further
analysis off-line using eQUEST. The comma separated values (CSV) file can also be
downloaded for use in other applications as well as conversion to other simulation engine
weather formats such as EnergyPlus.
Navigation Links
Simply click on the links to access these items or navigate.
Run List Link
This link returns you to the list of runs for this project.
Design Alternatives Link
This link will take you to the design alternative screen where you can change design
assumptions for this run and assess the impact of those changes. See the next section for
details on the Design Alternatives feature.
Notes Link
If you want to make or view comments about this run, click on the Notes link.
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
Navigation Tabs
At the top of each results page are navigation tabs that allow the user to view additional
information about their building design.
U.S. EPA ENERGY STAR
This tab will display the estimated ENERGY STAR score and associated data that can be
used to benchmark the building design’s total energy use performance relative to the U.S.
EPA’s ENERGY STAR requirements. Buildings that receive an ENERGY STAR score
above 75 from the EPA qualify for “Designed to earn the ENERGY STAR” and recognition
from the EPA.
Water Usage
The water usage tab allows the user to apply a variety of water saving measures,
including efficient fixtures, water catchments, native vegetation, and others. It also
summarizes the potential LEED points available for these measures.
Photovoltaic Analysis
The details of the photovoltaic (PV) potential analysis are listed in this tab showing the
individual PV potential for every exterior surface in the building. Estimated price per watt
for the PV system can be made on this tab to account for rebates or other regional
differences that affect PV system cost. See the VRML view tab to determine the building
surface associated with each result.
LEED Glazing
This tab lists all the spaces in the building and their individual Glaze Factor value. This
data can be used to determine what spaces in the building could qualify for LEED
daylighting credits.
Weather
This tab contains a variety of weather data graphs and charts. These graphs can also be
set for specific data types over specific periods of time.
3D VRML View
The 3D VRML View tab allows the building designer to review the
gbXML geometry data in 3D, and rotate it to review the placement of
walls, windows, floors, and other spaces. It requires a VRML Viewer
program that is available for free, such as the free Cortona VRML client
®
at www.parallelgraphics.com for Windows operating systems, and the
®
FreeWRL VRML/X3D Viewer at www.apple.com for Mac operating
systems to view these files. Click on the surfaces in the list at the right of
the window to identify them. When selected, a surface will highlight in
red in the 3D view, and its surface type will be displayed at the bottom of
the window.
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
The VRML Model
One of the download formats available on the results web page is a VRML file (see
example above, right). This is a 3D model that shows what the gbXML export has
extracted from your project. Viewing the VRML file is a useful way for you to establish that
your simulation is an accurate representation of the whole building. Rooms or surfaces
that are missing or that have been incorrectly identified (for example, a roof shown as a
shading surface) will be more apparent in this model. In the VRML (below left) the black
edges along the roof have been exported to Green Building Studio as shading surfaces
and not roof surfaces. The image on the right is an example of a DOE-2 file opened in
eQUEST. Notice there are several shades on the roof—this is because the upper limit of
the room objects on the top floor is not high enough to contact the roof. To solve this,
extend the room object’s top surface to above the roof’s top surface.
Design Alternatives
The design alternative feature allows you to modify the base case assumptions and then
run a simulation so that you can estimate the impact of these modifications on energy
efficiency. This feature helps you make significant design decisions more quickly.
The design alternative feature can be accessed in two ways. From the main “Energy and
Carbon” results page link as described in the previous section, by clicking on the “Design
Alternative” tab, or from the Projects Run page by selecting the run you’d like to create an
alternative for, and then selecting “Create a Design Alternative”. Clicking on either the
Energy and Carbon results page Design Alternatives link or the Run List page Design
Alternatives button will take you to the Design Alternatives page.
Revision Date: June 2011
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
The Design Alternatives Page
The top portion of the table has standard links to the Run List, the results page for the
base run associated with these Design Alternatives. The section directly below lists the
values for all the parameters that have been modified for the currently modified design
alternative or the design alternative selected by the user.
Adding Design Alternatives
Go to the Design Alternative screen associated with the run. Begin making the
modifications you would like to analyze by selecting a tab and choosing the drop-down list
value you would like to be applied for this alternative. Enter an Alternative name, and then
click the Add Alternative button. Continue doing this until all the desired Design
Alternatives are added.
Select the Run Added Alternatives button to place the alternatives in the run queue.
Depending on the model complexity, server load, and the number of alternatives you are
analyzing, it will take between a few minutes and an hour to complete your runs. Users
can also add and run alternatives individually as they are defined, or as described above,
add a group of alternatives and run the group at one time. Once all the alternatives are
run, you can review their results either on the Design Alternatives or the Run List page.
Revision Date: June 2011
Hints and Tips
If your model is
large and complex
it will take longer
to run. Try
submitting design
alternatives
individually as
they are defined.
While that
alternative is
running, define
and submit
additional design
alternatives.
AUTODESK GREEN BUILDING STUDIO GETTING STARTED
Summary
Architects and engineers can use digital design information to help analyze and
understand how their projects will perform before they are built. Developing and
evaluating multiple alternatives simultaneously makes comparison easier and helps inform
better sustainable design decisions. Building information modeling (BIM) is core to
Autodesk’s sustainable design approach for building performance analysis and simulation.
Autodesk, Ecotect, Green Building Studio, and Revit are registered trademarks or trademarks of Autodesk, Inc.,
and/or its subsidiaries and/or affiliates in the USA and/or other countries. All other brand names, product names, or
trademarks belong to their respective holders. Autodesk reserves the right to alter product offerings and
specifications at any time without notice, and is not responsible for typographical or graphical errors that may
appear in this document.
© 2011 Autodesk, Inc. All rights reserved.
Revision Date: June 2011
Download PDF
Similar pages