Interior-Only Projects
Quick Links:  Tips, Reference Code Comparison TableInput Fields
IMPORTANT UPDATE:  Establish a design energy performance record for your projects - see Design Closeout Final!
 

Tips

1.  Understand your baseline -  ASHRAE 90.1-2007 is the AIA 2030 Commitment baseline,  However, your design energy code baseline most likely will be different.  See Table 1 for a comparison of the 90.1-2007 version to the 2010 and 2013 versions.  It is not an exhaustive list, but provides insight into some of the differences across versions that are typically referenced within design energy codes. 

2.  
Calculate the Lighting Power Density (LPD) - Ask your electrical engineer or lighting designer for your LPD .  Reference:  USGBC’s form for calculating your LPD (lighting tab only)

3.  Look to other sources for LPD value:

  • Ask your engineer for the COMcheck form (or equivalent in CA, FL, etc.)
  • Depending on jurisdiction, building permit forms and energy code compliance forms may contain LPD information
     

Reference Code Comparison Table
Table 1 - ASHRAE 90.1 version comparison

The table displays a comparative analysis that was developed for three versions of the ASHRAE 90.1 standard related to the lighting building area method.  The intent is to provide insight into where lighting requirements have shifted in terms of building types.   The table shows columns including the values from each version of the three codes for the allowable LPD, and then the next column to the right shows the difference between the values of the 2007 version (AIA 2030 Commitment Baseline) and the 2013 version.  Additional insight is provided in terms of the degree of change in allowable LPD by the "% decrease" column to the right.
 

 

ASHRAE 90.1

2007

2010

2013

 

Diff b/n 2007, 2013

% decrease

Notes

Building Area Method

         

20%

Average across building types

Automotive Facility

0.9

0.82

0.8

 

0.1

11%

 

Convention Center

1.2

1.08

1.01

 

0.19

16%

 

Courthouse

1.2

1.05

1.01

 

0.19

16%

 

Dining: bar lounge/leisure

1.3

0.99

1.01

 

0.29

22%

 

Dining: cafeteria/fast food

1.4

0.9

0.9

 

0.5

36%

 

Dining: Family

1.6

0.89

0.95

 

0.65

41%

 

Dormitory

1

0.61

0.57

 

0.43

43%

 

Exercise Center

1

0.88

0.84

 

0.16

16%

 

Fire station

1

0.71

0.671

 

0.329

33%

In 2007 Police and Fire station were combined

Gymnasium

1.1

1

0.94

 

0.16

15%

 

Health-care clinic

1

0.87

0.9

 

0.1

10%

 

Hospital

1.2

1.21

1.05

 

0.15

13%

 

Hotel/Motel

1

1

0.87

 

0.13

13%

Hotel/Motel were combined in 2013.  See Hotel

Library

1.3

1.18

1.19

 

0.11

8%

 

Manuf. Facility

1.3

1.11

1.17

 

0.13

10%

 

Motion Picture Theater

1.2

0.83

0.76

 

0.44

37%

 

Multifamily

0.7

0.6

0.51

 

0.19

27%

 

Museum

1.1

1.06

1.02

 

0.08

7%

 

Office

1

0.9

0.82

 

0.18

18%

 

Parking Garage

0.3

0.25

0.21

 

0.09

30%

 

Penitentiary

1

0.97

0.81

 

0.19

19%

 

Performing Arts Theater

1.6

1.39

1.39

 

0.21

13%

 

Police/fire station

1

0.96

0.87

 

0.13

13%

 

Post Office

1.1

0.87

0.87

 

0.23

21%

 

Religious Building

1.3

1.05

1

 

0.3

23%

 

Retail

1.5

1.4

1.26

 

0.24

16%

 

School/University

1.2

0.99

0.87

 

0.33

28%

 

Sports Arena

1.1

0.78

0.91

 

0.19

17%

 

Town Hall

1.1

0.92

0.89

 

0.21

19%

 

Transportation

1

0.77

0.7

 

0.3

30%

 

Warehouse

0.8

0.66

0.66

 

0.14

18%

 

Workshop

1.4

1.2

1.19

 

0.21

15%

 


 

Interior-Only Inputs
When you select "Interior Only" for the Project Category input field, the displayed input fields change to the set described below.  Interior only projects do not include inputs for the envelope or HVAC systems.  Rather than the BASELINE, GOAL and TARGET being focused on Energy Use Intensity (EUI), they are focused on Lighting Power Density (LPD), and the units for LPD are Watts / per square foot (W/sf).  

 

 

 

Metrics Bar

Displays the high level metrics for your project.

  • PREDICTED

    The PREDICTED LPD value in in Watts per square foot (W/sf). The value displayed is based on the initial value entered in Section 2. Establish Predicted and Baseline on the General Inputs screen.

  • BASELINE

    The BASELINE LPD value is also in Watts per square foot (W/sf).  The value displayed is based on the approach selected to determine the BASELINE LPD in Section 2. Establish Predicted and Baseline.  When the required selections have been made and entered the resulting BASELINE LPD will display here.

  • GOAL

    The GOAL LPD value is in Watts per square foot (W/sf).  It is determined by the formula - - BASELINE LPD x (100% - 25%).  25% is the Target % Reduction for Interior Only,  AIA 2030 Commitment projects.

  • SAVINGS

    Displays Lighting Power Reduction (LPD) percentage savings for the project.  SAVINGS = (BASELINE LPD - PREDICTED LPD) / BASELINE LPD

  • CHALLENGE

    Displays the Target % Reduction for Interior Only, AIA 2030 Commitment projects, which currently is 25%.

Section 1: Input Building Specifications

  • Project Name*

    Associate a name with your project.  By default the input field is blank.

  • Project ID*

    A required field.  Provides the unique identifier for the project.  A default Project ID is assigned when a project is created, but you can change it by directly entering a new value into the input field.

  • Project Category*

    The category designation for the project that determines the input fields displayed and the minimum input requirements for the AIA 2030 Commitment. The three AIA 2030 Commitment category types are: 
     - Non-Residential (Non-Res) 
     - Residential (Res) 
     - Interior Only (IO)

  • Year of Occupancy

    The assumed year the project is to be occupied.

  • Country*- The Country where the project is located. If a country other than the United States, Canada, China or India is selected, then the State/Province field is not displayed.
  • State/Province*-  

    The state or province where the project is located.  The field is displayed if the Country selected is the United States, Canada, China or India.  The drop-down list will also vary based on the country selected.  If any other country is selected this field will not be displayed. 

  • Zip/ Postal Code*- The 5-digit zip code where the project is located, if in the US.  International zip codes that are number based can be entered as well.
     


    City - The city where the project is located.  For countries where the State/Province field is not available (all except for the United States, Canada, China and India), the city is a required field.

    Target Certification*Select ALL the target green building certifications that apply to the project.  The current selection options are provided based on guidance from the AIA 2030 Commitment Working group that is includes members from a number of signatory firms.  The selection options will be updated periodically, and for users that have recommendations to consider, please select the "Feedback" button and submit them for consideration. 

    Note:  For the USGBC's LEED Rating System, the certification level is represented generically (ex. LEED Platinum), versus including certification level options for each different LEED rating system (ex. LEED for Healthcare).  

    The selection options include: 

  • -BREEAM
    -LEED Platinum 
    -LEED Certified 
    -LEED Silver 
    -LEED Gold 
    -LEED Platinum 
    -Living Building Challenge 
    -Living Building Net-Zero Certification
    -Designed to Earn the ENERGY STAR 
    -ENERGY STAR for Homes
    -Green Globes 
    -Passive Haus
    -SITES
    -WELL Building Standard
    -Other 
    -None

  • Project Phase*- The current design phase for the project.  The selection options:


      - Concept
      - Schematic Design
      - Design Development
      - Construction Documentation
      - Construction Administration
      - Design Closeout Final
      - On-Hold

    Reporting Year*
    The AIA 2030 Commitment Reporting Year for the project.  The AIA 2030 Commitment reporting runs from April 1st to the following March 31st each year.

    Office Location
    The firm office that the project is associated with.  The optional field provides a drop-down list of the office locations that are included in the firm account profile.  The benefit of associating an office location with a project is that it can be selected as a way to view the firm's portfolio in different ways with REPORTS.

  • Use Types Table


    This is where the Use Types for the project are setup and can be edited, which influence the input fields displayed in other areas within DDx. The portion of the table on the right (see example below) is auto-generated and is intended to provide you some initial feedback on what the BASELINE EUI and LPD will be for the Use Types and the areas associated with them for the project. Note: They do not determine the baseline values associated with the project. That is done in Section 2. Establish Design Target and Baseline. Although it should also be mentioned that if you select the National Average baseline option, the values will be the same.

  • Use Type* 
    Note: Each project is required to have at least one Use Type


    The main program areas in the project. There can be multiple use types associated with a project to effectively capture mixed use projects, but at a minimum there has to be one. If there is only one use type, it will be the same as the overall building use type. Although there can be more than one, they are required to be stacked on top of each other and one floor cannot contain multiple use types. The source of the dropdown list is the list of building types that were included in the previous AIA 2030 Commitment spreadsheet tool.  Current Use Type list.

  • Area* 
    Units = ft2


    The overall area for each use type in the project.

  • ADD Use Type


    Selecting the "+" icon will add a new row for a new use type to the table.

  • DELETE Use Type


    Only appears when there is more than one use type displayed. Selecting the "x" icon deletes the use type in that row.

  • Lighting Power Density BASELINE 
    Units = W/sf (Watts per square foot)


    An auto-generated value determined by the Use Type selected, which is "looked up" in the use type table to determine the BASELINE Lighting Power Density (based on ASHRAE 90.1-2007 values) value displayed.

  • Lighting Power Density GOAL 
    Units = W/sf (Watts per square foot)


    An auto-generated value determined by multiplying the BASELINE LPD by the AIA 2030 Commitment percentage reduction target (25% for 2014)

  • Weighted Totals


    The auto-generated totals that are influenced by the use types and the areas associated with them. An example is provided in the figure below. In this example the Retail use type accounts for 22% of the overall building area (50,000/225,000) and the Office use type accounts for 78% (175,000/225,000). The weighted total in the BASELINE CBECS Average column is therefore determined by multiplying the Retail BASELINE EUI (72) by 22%, then multiplying the Office BASELINE EUI (104) by 78%, and then adding them together. The same calculation is performed for each of the four columns.

Section 2: Energy Analysis

This section does not currently contain input fields for interior only projects.

Section 3: Baseline & Target Energy Use Intensity

The section where the PREDICTED, BASELINE AND GOAL Lighting Power Density (LPD) values are determined that provide the metrics displayed in the Metrics Bar.

  • Define Energy Code*

    The design energy code for the project.  To review a table of the current design energy code selection options, and their associated code equivalent % savings assumptions, see Input: Code Equivalent.

    Was the LPD Calculated? *


    Identifies if the predicted LPD for the project was calculated or if a default or placeholder LPD value has been included.  The response to this question will assist the development of the AIA Annual Report. 


  • Define Baseline*


    For Interior Only projects there are two options for how the BASELINE LPD can be determined:
       - Option 1: Default (ASHRAE 90.1-2007) - When selected the DDx does a look-up for the use type(s) entered to establish the BASELINE LPD.
       - 
    Option 2: Space by Space - When selected the BASELINE field is activated so that you can manually input the appropriate BASELINE LPD that has been calculated elsewhere.

  •  

  • BASELINE 
    Units = W/sf


    The LPD value that is determined by the option selected in BASELINE TARGET to develop the BASELINE.

  • GOAL 
    Units = W/sf


    Once the Baseline LPD has been established, then the GOAL LPD is displayed for a quick reference. The calculation is just the BASELINE LPD multiplied by the current % reduction (25%). The GOAL LPD is also displayed in the metrics bar.

    PREDICTED LPD


    The current lighting power density (LPD) for the project design is entered. Typically the manually entered LPD will be the result of a basic calculation. The value entered here will be designed on the Metrics Bar in the DESIGN area.

Section 4: Additional Inputs

Note: All fields in this section for Interior Only project are optional and not requirements for the AIA 2030 Commitment report.

  • Renewables


    Establishes if renewable energy sources are an energy savings strategy and part of the project.  Select all that apply.  The current options are PV (Photovoltaic), Wind Turbine, Solar Thermal, and none.

  • Window to Wall Ratio %
    Input Type/ units: Manual Input/ % (percentage)

  • The window to wall ratio is the percentage of glazing per wall area for all sides and all floors of the building. Provides an interesting comparison metric for firms for their projects and portfolio, and also provides a useful energy use indicator.


    Occupancy Sensors Included?


    A checkbox input that establishes if occupancy sensors were used on the project.

  • Daylighting Sensors Included?


    A checkbox input that establishes if daylighting sensors for daylight dimming controls were used on the project.

  • ASHRAE 90.1 Appendix G Baseline Energy Model 
    Input Type/ units: Manual Input/ kBtu/sf/yr


    You can associate an additional Baseline EUI value from an ASHRAE 90.1 Appendix G model with your project for reference, if you have determined the Baseline EUI for your project using another approach.  If you are interested in using the result from an ASHRAE 90.1 Appendix G model for your project, you can enter the BASELINE EUI in Section 2 using the User Defined approach.  Note:  the entry of a value here is only for reference and comparison, and does not influence any calculations within the AIA 2030 DDx.  

  • Reduction in Potable Water per LEED?


    A checkbox input that establishes if reducing potable water, along the lines of the requirements in the LEED for Building and Construction Rating system, was pursued as a strategy for the project. Why flush potable water?

  • Only non-potable water used for irrigation (or no irrigation)?


    A checkbox input that establishes if a strategy for the project was to use only non-potable water for irrigation or to include no irrigation. Why spray potable water on a lawn?

  • Water collected for reuse (eg. Rainwater, graywater or blackwater)?


    A checkbox input that establishes if water harvesting of various types was a strategy for the project? Why not use the rainwater for the first time or other types of water again?

  • Section 5: Inputs Responsibility

    A user for the firm can be associated with the project, which could be used for internal communication to identify responsibility for completing the project inputs, review, submission or other.  The options on the drop down list displayed are the users that are associated with the firm's account.

    Section 6: Last Updated

    Displays the last firm user to update and save the project phase, and the date when the updated occured.