NOTE: EmPCalc v6.5 is a mandatory upgrade due to the new features and bug fixes that were completed. It is required for EmPower workscopes with a Heat Pump Demonstration Project.
New projects submitted after August 1, 2021, using earlier versions of EmPCalc will be returned requesting that the updated version be used. Approved in-progress projects may continue through project completion using the EmPCalc version at the time of approval.
EmPCalc v.6.5 can be used for both EmPower and HPwES projects.
Versioning: Updates will be made in groups of measures and contractors will be notified when we publish updates. The latest version is below:
- EmPCalc v.6.5→ rev. 07.01.2021
Version Updates:
6.5
ASHP Calculator:
- Updated ASHP Calculator to match ASHP Proforma – Clean Heating and Cooling – 6.22.2021 v.2021.3.xlsm
- Added capacity to better handle systems installed in areas with outside design temperatures between 12 °F and 17°F
- Modified weather stations associated with locations with outside design temperatures significantly different than those in the greater surrounding region.
Insulation:
- Modified Post Completion Efficiency formula to fix error when Heating System – Duct and Heating System Repair is proposed (but no T & C is proposed).
Heating System:
- Modified formula that determines percentage of fuel allocated for space heating when space and dwh use the same fuel by factoring in the UEF of the dwh system.
6.4
EmPower Package:
- Added Attic Floored as option for attic insulation (6” & 8” ceiling joist cavities)
Insulation:
- Modified foam pricing significant digits to eliminate rounding errors in measure cost
Including:
Foam Board
Closed Cell Foam
Open Cell Foam
Rim Joist Foam
Band Joist Foam
- Modified formulas that were causing high electrical savings when heat pumps are proposed.
ASHP Calculator & GSHP Calculator:
- Modified formula for “MEASURED Annual Fuel Use (for Space Heating ONLY)” {brown cell} so that DHW btus are not included when domestic water is heated with the same fuel the home is heated with.
Modeling Limitations: Development of EmPCalc is ongoing, there are still some measures that cannot yet be modeled. We will continue to add capabilities (see list below) and roll them out as they are completed. For projects needing the capabilities listed an alternate modeling software will need to be used.
- Boiler pipe insulation
- Duct Insulation
- Duct Sealing
- Dehumidifier
- Windows
- Storm Windows
- Window Insulation
- Exterior Doors
- Storm Doors
- Dishwasher
- Clothes Washer
- Clothes Dryer*
- Multiple water heater replacements
- Multiple heating system replacements
- Any insulation surfaces that are not in the current insulation drop-down menus or any unique insulation scenarios cannot currently be modeled in HPXML Compliant EmPCalc. Alternative modeling software will need to be used.
*Note: The NY HP Portal does not support clothes dryer improvements. While the measure was left in EmPCalc, it should only be used on EmPower projects not HPwES or AHP or Market Rate projects. If the measure is mistakenly exported into a .XML file and uploaded to the HP Portal the user will receive the error below. To fix this error simply delete the dryer data on the Dryer Conversion tab.
- Measure ‘clothes-dryer-measure-1’ must have between 1 and 1 installed_system system(s) only, or a valid MeasureCode
Notes Tab: The Notes Section (tab) in this version of EmPCalc works differently than the non-HPXML compliant EmPCalc in that you cannot edit the notes. The Notes tab in our HPXML compliant EmPCalc is used as a catch-all for notes entered throughout EmPCalc. For example, if you were to propose a Health & Safety measure on the Health & Safety tab, under the measure description, that description would populate in the Notes tab. If there are notes that you would like our Reviewers to see please enter them directly in the NYHP Portal.
Feedback: We need your feedback to make this tool better. All constructive feedback should be sent to Earl Hicks (Earl.Hicks@clearesult.com) and cc Pete Hoke (Peter.Hoke@clearesult.com) with the following information:
- Contractor Name
- Project ID
- Explanation of issue
- Screen shots as applicable
References:
- HPXML Compliant EmPCalc 5.3 Reference Guide 02.06.2019 → 02.06.2019
- Audit Report Documentation EmPCalc 5.3.4 → 10.14.2019
