v0.7 (2021-09-30)

What's New

• Update all baseline data to the EIA 2021 AEO
• Report onsite generation separately in results (in total and broken out by region/building type)
• Separate distillate and propane CO₂ emissions intensities and prices as part of residential "other fuel" technology calculations

v0.6.1 (2021-09-28)

What's New

• Add state-level breakouts of baseline data and electricity emissions and costs
• Update EMM regions and default peak/take periods to AEO 2020, support regional emissions intensity/electricity price calculations
• Rework the nature of measure packages with a focus on handling interactions between HVAC equipment, envelope, and controls
• Support calculation of sector shape and time-sensitive valuation data for packages and fuel switching measures
• Improve stock turnover calculations and measure cost-effectiveness calculations throughout
• Add several new user options, including:
  • Select an alternate grid scenario consistent with full grid decarbonization by 2035
  • Impose exogenous fuel switching conversion rates to determine fuel switching measure market shares
  • Breakout results by fuel type (electric/non-electric) for heating, water heating, and cooking measures and packages
  • Specify measure performance and/or cost by IECC climate zone in addition to AIA climate zone
  • Restrict simulations to a single adoption scenario (max adoption potential or technical potential)
  • Impose a global measure market entry year (e.g., the first year in which any of the measures can have an impact)
  • Suppress calculation of secondary lighting impacts for commercial buildings

v0.6 (2020-07-31)

What's New

• 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.

v0.5.1 (2019-12-19)

What's New

• 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.

v0.5 (2019-06-28)

What's New

• All baseline data and ECM definitions reflect EIA AEO 2019 reference case.
• Users may optionally specify site energy or captured source energy outputs.

v0.4.3 (2019-04-12)

What's New

• Updated and/or reorganized several ECM definitions.
• Fixed bugs in heat pump cost calculations, secondary lighting calculations, and time-sensitive valuation data.

v0.4.2 (2018-10-16)

What's New

• 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.

v0.4.1 (2018-07-13)

What's New

Fixed bugs with R v3.5, envelope/HVAC interactions

v0.4 (2018-06-29)

What's New

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.

v0.3.1 (2018-04-25)

What's New

Fixed bug in calculation of captured stock’s relative performance.