Skip to content
Jul 31, 2020


New measure impact valuations; update to AEO 2020
* Expand time sensitive efficiency and flexibility measure assessment capabilities.
* Enable assessment of avoided public health costs from deploying building efficiency.
* Update core ECM set definitions to the latest mandatory and voluntary specifications.
* Update all baseline data to the EIA AEO 2020 reference case.
* Add new MELs baseline cost, performance, and lifetime data.
Dec 19, 2019
v0.5.1: Improve savings splits and cost data, add command line options
* Improve robustness of savings split calculations across routines.
* Break out envelope savings by heating and cooling contributions.
* Users may optionally write out ECM market penetration fractions.
* Users may optionally fix ECM relative performance across the time horizon.
* Other small bug fixes and improvements throughout.
Jun 28, 2019


Update to AEO 2019 data, add energy output types
* All baseline data and ECM definitions reflect EIA AEO 2019 reference case.
* Users may optionally specify site energy or captured source energy outputs.
Apr 12, 2019
Updated ECM definitions, bug fixes
* Updated and/or reorganized several ECM definitions.
* Fixed bugs in heat pump cost calculations, secondary lighting calculations, and time-sensitive valuation data.
Oct 16, 2018
Added ECM definitions, improved TSV calculations, bug fixes
* Added best available and prospective target ECM definitions.
* Enhanced time-sensitive efficiency valuation capabilities and underlying datasets.
* Small bug fixes, refinements to ECM stock-and-flow and competition calculations.
Jul 13, 2018
Fixed bugs with R v3.5, envelope/HVAC interactions
Jun 29, 2018


Update to AEO 2018 data, pilot time sensitive efficiency valuation, e…
…xpand miscellaneous loads data

Baseline technology stock/energy and cost/performance/lifetime data now correspond to the EIA Annual Energy Outlook 2018 reference case.

Time sensitive efficiency impacts (load shifting, shaping, etc.) are piloted through a new ‘time_sensitive_valuation’ field in the ECM definition.

Several new miscellaneous loads are broken out in the baseline technology stock and energy data, allowing ECMs to be applied specifically to these new loads.

Users may now assign ECM-specific baseline retrofit rates as part of the ECM definition.
Apr 25, 2018
Fixed bug in calculation of captured stock’s relative performance
Apr 20, 2018


Updated envelope baseline data, enabled add-on MELs ECMs
Baseline envelope data were updated to reflect expected code-driven changes in typical envelope characteristics over time.

Users may now assess ‘add-on’ ECM types when comparable baseline technology cost, performance, and lifetime data are missing (as is often the case for ECMs affecting Miscellaneous Electric Loads (MELs)).

Default ECM definitions were updated to reflect the newest available performance standards.

Other updates:
-expanded time horizon to 2050,
-site-source conversions now reflect AEO 2017 and residential cost conversions now reflect RECS 2015,
-multiple bug fixes pertaining to the ECM preparation routine, stock-and-flow calculations, and plotting configuration,
-expanded XLSX data generation in the R plotting routine, and
-updates to the documentation that reflect the above changes.
Jun 18, 2017


Address beta testing feedback, update to AEO 2017 baseline data
Notable changes based on an initial round of beta testing feedback include:
-addition of a Quick Start Guide to the docs,
-execution of R plots from within the ‘’ analysis engine module, and
-additional filtering options in ‘,’ the high-level simulation manager.

Baseline technology stock/energy and cost/performance/lifetime data now correspond to the EIA Annual Energy Outlook 2017 reference case:
You can’t perform that action at this time.