Solar Value Stack Calculator

NY-Sun developed the Solar Value Stack Calculator to help contractors better estimate compensation for specific solar projects. We will periodically update the calculator—please revisit this page regularly to ensure you are using the most recent version. To download the calculator, you will need a recent version of Microsoft Excel.

The calculator combines the wholesale price of energy with the distinct elements of DER that benefit the grid: the avoided carbon emissions, the cost savings to customers and utilities, and other savings from avoiding expensive capital investments.

A separate calculator is available for standalone energy storage projects located in ConEdison’s service.

New Order Version

The New Order version includes the changes specified in DPS’s April 2019 Value Stack Order, and is meant for projects that qualify under the new rules.

Revision 2.4 (7/3/2020) of the Value Stack Calculator includes the following changes:

  • Added 2019 historic LBMP and ICAP Alternative 1 and 3 data and 2020 ICAP Alternative 2 data.  2016 data was removed.
  • Added clarification to Documentation tab on how historic ICAP rates were determined.
  • Updated Community Credit options for National Grid, NYSEG, RG&E, and PSEG-Long Island.
  • Added most recent historic weather data.
  • Added functionality to model annual degradation on energy storage.  

Legacy Version

The Legacy Value Stack Calculator is for projects that qualified under the legacy value stack. For more details on qualifying dates and eligibility, please see the resources on NYSERDA’s Value Stack main page.

Revision 2.4 (7/3/2020) of the Legacy Value Stack Calculator contains the revisions indicated above, as well as the actual 2019 peak hours for determining DRV and LSRV revenue.

If you have questions about the Solar Value Stack Calculator, email us at

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