Release Notes

A summary of recent updates to the Asset Score tool, including new features, capabilities and improvements are documented in the Release History below. Known issues that have not yet been addressed are listed on the Known Issues page.

Asset Score Release History

11.21.2016
Release 2.2.1

Simulation Infrastructure Improvements and Fixes

  • Updated input fields in Preview Input Mode to incorporate the newly added fuel type options
  • Corrected an issue with reverting Preview Input Mode inputs back to default values
  • Corrected an issue with naming Plant Loops which caused buildings to fail
  • Backend system improvements for administrators

Asset Score API

  • Replaced beta version of Asset Score API for Preview Input Mode buildings with final version
  • Corrected issues with the new API includes documentation, including available input value options for fields used in Preview Input Mode buildings

10.17.2016
Release 2.2.0

New Features

  • Added Fuel Oil and Propane fuel type options for Boiler Plant Types and Furnaces
  • Added District Steam option for District Plant Types

Simulation Infrastructure Improvements and Fixes

  • Added enhancement to infiltration modeling
  • Corrected an issue with infiltration through top plenums
  • Updated the Data Collection Forms to reflect new fuel type options

Expected Score Changes

The enhancement to infiltration modeling may result in a 0.5 point score change for previously scored buildings.

Asset Score API

  • Added beta version of Asset Score API for Preview Input Mode buildings
  • New API includes documentation, including available input value options for fields used in Preview Input Mode buildings

08.12.2016
Release 2.1.4

New Features

  • Added software release number display to Asset Score header

Simulation Infrastructure Improvements and Fixes

  • Corrected an issue with interior surface wall assignments that was causing buildings to fail
  • Corrected an issue with the layout of building icons in the Display view of the Buildings page
  • Added a restriction when choosing files for import to prevent importing non csv files
  • Restored the capability to import buildings from Energy Star Portfolio Manager
  • Increased the minimum value for AHU fan efficiency to 25%
  • Increased the minimum % of roof area for skylight entries to 1%

07.11.2016
Release 2.1.3

Simulation Infrastructure Improvements and Fixes

  • Corrected an issue with selecting a hot water plant loop as the reheat source for a terminal unit
  • Corrected an issue with deleting condenser loops linked to cooling
  • Updated the score calculation formulas to prevent an issue where the potential score was lower than the current score for some buildings

06.17.2016
Release 2.1.2

Simulation Infrastructure Improvements and Fixes

  • Added HVAC system sizing capability to improve the calculation of the minimum system inputs for fan size, air flow, and outdoor air
  • Backend system improvements for administrators

Expected Score Changes

  • The new HVAC system sizing capability may result in a 0.5-1.5 point score decrease for buildings with high ventilation rates, such as schools, courthouses, medical offices, post offices and police stations. These would only be seen for buildings with multi-zone air-handling units.

06.08.2016
Release 2.1.1

Simulation Infrastructure Improvements and Fixes

  • Corrected an issue with assigning lighting fixtures to blocks with unassigned use types
  • Corrected an issue with the display of the registration page for new users
  • Corrected an issue with launching the Help Desk contact form
  • Corrected an issue with assigning plants to blocks

06.01.2016
Release 2.1.0

New Features

  • Updated the user interface (UI) with new style and navigation
  • Added ability to create common HVAC systems through single step system type definition
  • Added capability to model water loop heat pump (WLHP) HVAC systems
  • Modified the data entry selection process for plant equipment
  • Added capability to provide custom names to assets and surfaces for easier identification and reference
  • Added a new Help Desk feature for asking questions and providing feedback
  • Added a new Community Forum
  • Replaced Asset Score Help with a new User Guide
  • Added permission selection for sharing building data with the Building Performance Database (BPD) to the registration page
  • Added Assessment Type data entry field to distinguish between real or test buildings
  • Added a timeout for inactivity

Simulation Infrastructure Improvements and Fixes

  • Updated to OpenStudio version 1.10.0
  • Updated to EnergyPlus version 8.4
  • Updated the Data Collection Forms, Quick Start Guides, and At-a-Glance document
  • Added minimum 60% validation code and prompt for Fan motor efficiency
  • Updated the roof, wall and floor R value validations which corrected an issue where buildings with excessive values entered were failing
  • Updated HVAC defaults for Preview buildings following CBECS analysis
  • Updated Preview spreadsheet upload process to correct errors
  • Updated Floor-to-Floor vs. Floor-to-Ceiling Height minimums to prevent creating extremely small plenum spaces which caused buildings to fail
  • Corrected an issue where daylight sensors were added to plenum zones which caused buildings to fail
  • Corrected an issue which prevented modeling of windows for buildings with high window-to-wall ratios

Expected Score Changes

  • The corrected issue which prevented modeling of windows for buildings with high window-to-wall ratios may result in a 0.5-3 point score decrease
  • The bug fixes implemented for EnergyPlus V8.4 results in lower heating energy use. Some buildings may see a 0.5-1.0 point increase

03.10.2016
Release 2.0.3

Simulation Infrastructure Improvements and Fixes

  • Added validations for invalid block dimensions for L, T, and U shaped blocks. Previously, invalid entries had prevented blocks from displaying on the screen and edits with invalid block dimensions entered for existing blocks have resulted in errors when attempting to score the building..

02.26.2016
Release 2.0.2

New Features

  • Posted a newly released Journal of Building Performance Simulation article outlining the Scoring Methodology of Asset Score to the Resources page.
  • Changed the link and updated the layout of the Release Notes page to include seperate sections for Known Issues and Future Updates.

Simulation Infrastructure Improvements and Fixes

  • Corrected an issue with the Preview score calculation that gave negative score values for some buildings.
  • Corrected an issue with editing the Window Layout of adjacent blocks which had resulted in error notifications for some buildings.
  • Corrected an issue with assigning Zone Equipment to Parking Garages which had resulted in an error.
  • Corrected an issue which was preventing the user-entered Gross Floor Area from appearing on reports. Reports for buildings created before 01/25/2016 may need to be re-downloaded to see this field displayed on the report.

02.12.2016
Release 2.0.1

Simulation Infrastructure Improvements and Fixes

  • Corrected an issue with editing window layout. The capability to edit windows assigned to a block adjacent to another block has been restored.
  • Corrected the gross floor area calculations for the Building Assets section of the Asset Score Reports.
  • Removed the Window-to-Wall Ratio display for Discrete windows that had been displaying the Continuous Window-to-Wall Ratio values on the Building Info page.
  • Corrected an issue that was generating a failure notification when attempting to score Preview buildings with Parking Garages.
  • Corrected an issue that was populating the wrong default fuel types for the following Use Types: Lodging (small buildings), Medical Office, Office (medium sized buildings), Police Station, Post Office. Post Office .

01.22.2016
Release 2.0.0

New Features

  • Added a 'Preview' input mode for entering and simulating buildings to generate an estimated score range.
  • Added the capability to import a group of buildings in Preview input mode, and simulate these buildings in a batch run for quick analysis.
  • Posted a new Data Collection Form, Example Score Report, and Quick Start Guide for the new Preview input mode.
  • Separated the Plant data entry screen into sections for Cooling, Heating, and Condenser Plants.
  • Added the capability to model dedicated outdoor air system (DOAS) HVAC systems.
  • Added the capability to select reheat sources for terminal units.
  • Added AHU and Zone equipment identifiers to help with assigning HVAC systems to blocks.
  • Removed the requirement to assign walls and a window-to-wall ratio to interior surfaces when they are 100 percent adjacent.

Simulation Infrastructure Improvements and Fixes

  • Updated the short and long versions of the Data Collection Forms for Full input mode to include new data entry options for HVAC systems.
  • Posted updated Example Score Reports for single and mixed-use buildings scored in full input mode.
  • Posted a new version of the Program Overview and Technical Protocol.
  • Updated the Help file to include information for entering and simulating buildings in Preview input mode.
  • Updated the LED fixture that was mapped in FEDS to correct an issue with the calculated lighting power density appearing too high.
  • Added default value for fan efficiency input for air handling units.
  • Fixed the schedule of operation of HVAC systems for a few use types which was resulting in unmet load hours during warm up and cool down periods.
  • Score scales have been updated to reflect the new tool capabilities and simulation improvements. User's might see a change in scores for buildings scored before 01/25/2016.
  • The Structure and Systems rankings have been updated for several use types to reflect the new capabilities added to the tool. The rankings for a few use types are still under development and will be updated in the next interim release.

07.31.2015

New Features

  • Added capability to model cool roofs and energy recovery ventilation (ERV) systems.
  • Added energy efficiency measures including cool roofs, top-lighting controls, occupancy sensors and ERV.
  • Updated Asset Score Building Upgrade Guide to include references to the new advanced building controls.

Simulation Infrastructure Improvements and Fixes

  • Updated baseline ranges for heating and cooling system evaluations for the 'Structures and Systems' section of the Asset Score report.
  • Updated calculations for envelope evaluations in 'Structures and Systems' section of the Asset Score report.

06.30.2015

New Features

  • Added Parking Garage(Heated Only) Use Type.
  • Updated Asset Score Building Upgrade Guide to include new and edited advanced building controls recommendations.

Simulation Infrastructure Improvements and Fixes

  • Updated Adobe Flash Player libraries to improve 3D geometry capabilities and fix bugs associated with multiple block buildings.
  • Added a validation check for lighting inputs to prompt if a block has more or less lighting than expected.
  • Updated data collection form to correct checkbox data entry errors.
  • Updated Asset Score report to restore 'Learn More' links to the Upgrade Guide.

02.09.2015

New Features

  • Asset Score and Asset Score Report changed from a 100-point scale to a 10-point scale.
  • Updated Asset Score Help page to include additional descriptions of 10-point scale and Asset Score Report.
  • Updated score scales for a few of the new use types (including Medical Office, Police Station, Post Office and Religious Building).
  • Added 'Model Download' button to enable download of an Open Studio (.osm) model for scored buildings.
  • Added Minimum Air Flow Fraction menu option for multiple zone distribution air handler units.
  • Added upgrade recommendations for fan control and minimum air flow fraction for multiple zone distribution air handling units.

Simulation Infrastructure Improvements and Fixes

  • Revised operational assumptions for selected building use types.
  • Improved system evaluation criteria.
  • Improved modeling capabilities, including the modeling of plenums.

Asset Score API

  • Updated to provide all capabilities present through the web application.
  • Added input validations which either prevent or handle incorrect data entry.
  • Updated documentation with additional examples.

10.10.2014

New Features

  • Additional Use type: Parking Garage.
  • Additional HVAC options – 'No Heating, No Cooling' (for Parking Garages only).
  • Lighting daylight controls selection available in Construction window for blocks.
  • Captcha requirement for Feedback Form submittal.
  • Elevators option for Operations.
  • Updated Asset Score Report cover page, tables, graphs, and footnotes text, layout, and content.
  • Updated Asset Score Help file to include advanced building controls.
  • Updated Data Collection Forms to include new use types and advanced building controls.
  • Updated Asset Score Building Upgrade Guide to include advanced building controls recommendations.
  • Updated Operational and Equipment Sizing Assumptions to include new use types.

Simulation Infrastructure Improvements and Fixes

  • Incorporated advanced building controls to tool scoring and upgrade recommendations.
  • Updated site to source conversion factors to the 2013 national average site-to-source conversion factors released by EPA.
  • Improved system evaluation criteria.
  • Fix for a bug that caused inconsistent potential score in a few buildings.

08.15.2014

Log In Requirements for existing users

  • Users given access to the Tool prior to April 10, 2014 will need to reset their passwords by selecting the 'Forgot your password' link and following the instruction prompts.
  • Account access now requires a first name and last name entry. All existing users will be prompted to update their account settings.

New Features

  • Self-registration capability for new user accounts.
  • Additional use types (Police Station, Religious Building, Low Rise Multifamily etc.).
  • Mixed use building rules implemented in the user interface.
  • Building sharing capability.
  • Spreadsheet download for rated buildings for simulation results (energy use by end-use).
  • Additional inputs for advanced building controls.
  • Additional input validations.
  • Updated Asset Score Help File with better illustrations and examples.

Simulation Infrastructure Improvements and Fixes

  • Improved optimization for recommendations based on user provided operation parameters.
  • Change in default assumption for infiltration rate for buildings.
  • Modifications and minor bug fixes for air cooled and water cooled chillers.
  • Bug fixes for air source heat pumps with economizer control.