Use the Energy Savings Opportunities Measures and Packages screens to enter and report identified energy savings opportunities resulting from the energy audit. Entry is a two-step process first requiring the entry of Energy Efficiency Measures (EEMs) in the Building Energy Saving Opportunities – Measures tab and then assigning and grouping these measures into packages in the Building Energy Savings Opportunities Packages tab.
For New York City Energy Efficiency Reports, select the Building Energy Savings Opportunities – Measures screen to enter EEMs that apply only to a specific BIN. Select the Shared System Energy Savings Opportunities - Measures screen to enter EEMs that apply to shared systems within the BBL. Shared systems may include HVAC heating, cooling, or condenser plants, or service hot water systems entered in the Facility Description section. Entries and edits made to the tables on this screen will auto-populate the records of all the BINs in a BBL.
Energy Savings Opportunities – Measures
Enter all of the EEMs identified for the building.
Data Entry Steps
- Select the green “Add Measure” button at the bottom of the Energy Savings Measure tab to create a row to enter a new measure.
- Measure Identifier will auto populate. Auditors may edit and provide their own identifying text if desired (Note: this text must be unique)
- Select system and measure categories from the drop-down menu lists.
- Select Measure Category to populate lists of associated EEMs to select from in the Measure Name drop down menu. Select an appropriate EEM from among the list of actions required for implementation.
- Measure Description is required to describe the existing conditions that provide background for understanding the basis for each recommended measure as necessary.
Note: Some EEMs may apply to multiple system categories. For example, EEMs under the measure category of building envelope modifications may apply to heating, cooling and air distribution end uses. The System Category is not a required field and may be left blank, particularly when entering measures which impact more than one end use.
Use the ‘Measure Status’ dropdown to categorize each EEM as a recommended measure or a practical measure (by selecting ‘Not Recommended’). This can also be used to identify if a measure has been implemented already or requires additional analysis. Provide a description of the existing conditions that provide background for understanding the basis for each recommended measure as necessary, in the Description text field.
For New York City Energy Efficiency Reports, if Heating, Cooling, Air Distribution, Water Distribution, or Domestic Water Heating is selected from the End Use Category drop down menu, then any previously entered applicable systems will be available from the drop down Shared System menu. Upon selection, the BIN numbers associated with the shared system will be visible for the EEM.
EEMs that do not apply to a shared system but are included as part of a shared energy savings recommendation package may be entered and identified by selecting ‘No’ in the Applies to Shared System field and entering the implementation costs for each measure.
Example: Heating package that includes a measure to replace a boiler that is located in building 1 but shared between buildings 1 and 2 (Applies to Shared System = Yes); and a measure to insulate the boiler room in building 1 (Applies to Shared System = No).
The Modeling/Calculation Approach dropdown menu item may be used to indicate whether the annual energy and cost savings for each measure were identified manually via spreadsheet calculations or with an energy modeling software.
Measure Costs and Incentives
Provide a summary of the implementation cost for each measure. Enter values for the measure cost, potential incentives (in dollars), and measure life (years). The potential incentives should include the available utility, tax, or other incentives applicable to each measure.
Some reports may prompt for the Portion of Building Affected, Rebates Available, or Annual Change in O&M Cost fields.
Energy Savings Opportunities – Packages
Group EEMs that were identified on the Measures screen into Packages to report energy and cost savings. EEMs may be grouped and entered into tables as part packages in one of two recommendation categories: Low Cost and No Cost, and Potential Capital. Total costs, energy savings, and calculated payback and ROI values for EEMs and packages will be displayed after selecting the Save/Refresh button.
Note: Packages should only include measures that affect the same system. For example, enter measures associated with the Measure Categories of Boiler Plant improvements and Lighting Improvements as separate packages, since they would affect different systems: Heating Systems and Lighting Systems.
Data Entry Steps
- Enter a Package Name
- Select the Recommendation Category from the drop-down menu
- Select a measure from drop down (populated with Measure Identifiers from the Energy Saving Opportunities - Measures)
- Select the green “Add Package” button to add it to the table
- Edit Energy and Cost Savings as needed
- Assign additional measures to packages by selecting the Package and Measure drop downs
- Select the green Save/Refresh button to update
Annual Energy and Cost Savings
Energy and cost savings are to be entered for the package of measures (or for individual measure if prompted, depending on the report template). Enter one input per package for the following:
Total Annual Cost Savings – Enter the estimated cost savings that would be realized if this package were implemented.
Energy Savings by Energy Source – Energy savings for each package needs to be identified for each of the energy supply sources which are affected by the measure. Input fields will be available for each of the Energy Types selected on the Available Energy Supply Sources screen. Enter the estimated energy savings for this energy source that would be realized if this package were implemented. If a measure would not be expected to see savings for a particular energy type, enter a value of 0.
On-Site Generated Savings – Enter a value that would reflect the estimated savings that would occur for energy used from a selected on-site renewable energy supply source, if the selected Measure is implemented. An entry in this field would be relevant only if generated energy is not exported and is used exclusively onsite. Enter ‘0’ if net metering incentives are in place.
Peak Demand Savings - Enter a value here in kW that would reflect the estimated savings that would occur during a period of peak demand if the selected Measure is implemented.
For New York City Energy Efficiency Reports, savings are to be estimated and entered for the system level (multiple BINs), not the building level (single BINs).
Note: measures that have negative savings may be entered as part of a package, with the negative savings factored into the cost savings calculations.
The payback of each package of measures will automatically be calculated using the following formulas:
Net Measure Cost = Total Measure Cost - Total Potential Incentives
Simple ROI = Total Cost Savings/Total Net Measure Cost
Simple Payback (in years; excluding incentives) = Total Measure Cost/Total Cost Savings
Simple Payback (in years; including incentives) = Total Net Measure Cost/Total Cost Savings
The Tool will sum the total energy and cost savings for the packages and display in the pdf report and in a Summary screen (depending on the report type).
Carbon savings (t CO2e/year) are calculated and displayed for each package (or measure depending on the report type). See the GHG Emission Metrics page for details.
Terms and Definitions
The following definitions for content appearing in this section have been referenced from Standard 211:
energy efficiency measure (EEM): an action taken in the operation or equipment in a building that reduces energy use of the building while maintaining or enhancing the building’s safety, comfort, and functionality. The term is sometimes known as energy conservation measure (ECM); also referred to as “energy conservation measure” (ECM).
interactive effect: The change in resultant energy savings estimates or actual energy savings due to analyzing or implementing multiple EEMs that impact one another.
Low Cost/ No Cost measures: Low cost/no cost measures are those that can be implemented within the O&M budget for the facility, where such exists.
practical measure: An EEM that is determined to be technically feasible.
recommended measure: A practical measure that has been vetted for interactive effects with other practical measures and determined by the qualified energy auditor to provide net benefit to the building ownership. Life-cycle Cost Analysis (LCCA) may be used as the methodology to filter Practical Measures to Recommended Measures.
simple payback: Estimated initial energy efficiency measure (EEM) cost divided by the EEM first-year calculated cost savings. Both savings and costs are in dollars ($) or other consistent monetary units, and the simple payback is expressed in years.
simple return on investment (Simple ROI): The energy efficiency measure (EEM) first-year calculated cost savings divided by estimated initial EEM cost. Both savings and costs are in dollars ($) or other consistent monetary units.