Guide Combined Heat and Power (CHP) and Flywheel Storage Statement of Qualification Application

Anyone who wants a Combined Heat and Power (CHP) Generation Unit to be qualified for participation in the Alternative Energy Portfolio Standard (APS) program must apply for a Statement of Qualification. This page includes directions for applying for the APS SQA.

Statement of Qualification Application

All on-line applications and required supporting documents must be submitted electronically. The on-line  application must be completely filled out and include all supporting documentation. Original copies must be submitted for all pages that require signatures. Electronic signatures (e.g., faxes or simulated) are not accepted. A hard copy of the signature pages must be mailed or delivered to DOER. Except in the case of Aggregations, a separate SQA must be submitted for each independent project.

The web-based application can be accessed by using the link below. All first-time applicants must first establish a user account by clicking on the “Register” link (NOTE: On February 6, 2014, a new version of the web-based application replaced the original version that existed from 2010-2013.

Apply: APS

General Instructions

Potential CHP applicants are strongly encouraged to review the Statement of Qualification (SQA) package (forms and instructions, guidelines, data sheets, and CHP worksheets) well in advance of detailed design and procurement, to ensure that approved metering technology is well understood and included in both the project design and budget. The Alternative Energy Portfolio Standard (APS) application is web-based. You must register by creating a username and password and then fill out the application online. Once you have registered you will be able to save and log out of the application. For ease of viewing you can download a PDF version of the APS application in its entirety. However, you MUST complete and submit the web-based version only. Note that the PDF-formatted SQA includes all possible sections and appendices for the SQA, including many that will not pertain to your type of facility.



The following document includes an Explanation and Assumptions for Certificate Calculation, including:

  1. Guidelines on applications of the AEC formula
  2. Approved CHP system meters
  3. List of other documents that must be submitted with the Application

CHP Guidelines

Additional Files

In addition to the web-based application, all applicants for Combined Heat & Power (CHP) under the APS must submit the following documents:

Excel based worksheets

Completed CHP  (3/17/11)

  • DS#1: Genset(s) (prime mover and generator)
  • DS#2: CHP Heat Recovery System(s)
  • DS#3: APS Meters for CHP Systems
  • DS#4: Generator and Electrical Distribution System(s)


Completed CHP APS-SQA CHP Worksheets

  • Sheets 1 & 2: Thermal Loads Used as Basis of Design
  • Sheet 3: Total Electrical Usage for All Electrical Loads to Be Served by the CHP System
  • Sheet 4: Projected Baseline CHP Average Annual System Performance


Other Documents

  • System APS Meters - Manufacturer's Specifications and Technical Data Sheets
  • General Site Plan Showing Existing and Proposed Structures & Utilities & Property Lines (only if the mechanical tie-in with the existing system occurs at more than one building)
  • Equipment Arrangement Plan (Mechanical & Electrical) Including Points of Connection with Existing Equipment and/or Distribution Systems


System Process Flow Diagram (PFD) Showing Each Major Operating Mode, Including:

  • Location of all APS required meters
  • Major Equipment and Piping and Instruments
  • All Thermal Dumping Sub-Systems, i.e. sub-systems which reject CHP thermal output to a non-useful load sink (e.g. engine overheat protection radiator cooling loops)
  • Applicable Process Values (e.g. kW, Temperature. Pressure, Enthalpy (BTU/lb), mass flow rate (lb/min or lb/hr) at Inlets and Outlets of all major equipment and at each main Points of Connection with Existing Systems.
  • One-line Electrical Distribution and Interconnection Diagram

Massachusetts APSI October 5, 2009, edition Page 5 of 23

  • System Controls: Description, Including a Narrative of the sequence of controls for each of the system principal operating modes.

Independent Verifier

An Independent Verifier must be selected for Generation Units whose output Is NOT monitored and reported to the NEPOOL GIS by ISO-NE, including all aggregations and other behind-the-meter units per 225 CMR 14.05(1)(c). The duty of the Independent Verifier is to access/read the electricity output meter of the unit, assure itself that the reading is reasonable, and accurately report the generation of the unit to the NEPOOL GIS on a quarterly basis. Such reporting is done via the Verifier's own account at the GIS. A list of Massachusetts RPS/APS Qualified Independent Verifiers is provided below; however, you are not required to select a Verifier from the list. Whether the Verifier is listed or not, you must fill out Appendix D, Section 2 of the online application to provide the details on the Verifier you have chosen. If your chosen Verifier is not already registered at the GIS, the Verifier must register via the GIS homepage (; such registration can be completed only when DOER informs the GIS it has approved the Verifier.

RPS/APS Qualified Independent Verifiers

Estimated Annual AECs & Net Source GHG Reduction

For applicable CHP systems, the estimating tool can be used during the development of the CHP project to estimate its projected annual generation of Alternate Energy Certificates and the associated estimated reduction in net source GHG emitted. However, for the purposes of the SQA, the projected AECs must be the product of the completed APS SQA CHP Worksheets.

APS AECs & GHG Reduction Estimator

DOER SQA Review Form for New CHP Systems

This is a “for information”  copy of the form used by the DOER for the review of SQAs Submitted for New ( as opposed to Incremental) CHP projects. It is provided to indicate the scope of information required to be submitted in order to allow for a completed review.

DOER CHP SQA Review Form


To add a Generation Unit to an already approved aggregation, applicants will also need to submit the following:

  • APS CHP Aggregation System Information Spreadsheet (excel)
  • Technical Information Data Sheets - Combine the information for any of the aggregated system sharing common components and nameplate data in a single set of Information Data Sheets. Submit as sets of Data Sheets as needed to include all of the different components and nameplate characteristics. Be sure to list the names of the individual systems in the "system name" field at the top of the Data Sheets.
  • CHP Worksheets - For both the initial submittal and the submittal of any subsequent additions to the aggregation: For aggregated systems for which the projected annual AECs do not differ from each other by 5% or more, submit a single set of CHP worksheets. Submit separate CHP Worksheets for each system or group of system for which the projected annual AECs differ from the rest by more than 5%.

For incremental systems as defined in 225 CMR 16.00 Sections 16.02 (Definitions) and 16.05 paragraph 2 b ii (Combined Heat and Power, Determination of APS Alternative Energy Attributes), the applicant should refer to the "APS Guidelines for CHP Systems" and consult directly with the DOER regarding which terms in the general formula for the incremental case should be included as applied to the specific incremental case.


You must submit all signature pages with their original signatures and any required supporting documentation not included in the electronic application to the following address:

Mass. RPS Program

Department of Energy Resources

100 Cambridge St. Suite 1020

Boston, MA 02114

Certified mail or equivalent forms of delivery are encouraged.

Spreadsheets and Other Attachments

Some information will have to be completed in the form of attachments, sometimes including spreadsheets. Attachments must be submitted by email to whenever possible. Please provide clear titles, including the name of the Unit, for all attachments. Your SQA will not be complete until DOER has received all required attachments and other documents.

DOER Review and Approval

Once DOER receives a Statement of Qualification Application, staff members review it for completeness, accuracy, appropriate signatures, and certification.

DOER will email each applicant that submits a complete and accurate application to confirm its receipt. DOER strives to notify applicants of their qualification within 30 days of receipt of their applications: Statements of Qualification will be mailed.

Applications that are incomplete, inaccurate, or include ineligible projects, will not be reviewed further until the open issues have been completely rectified to DOER's satisfaction. DOER will notify the applicant, within 30 days of receipt of an incomplete, ineligible, or inaccurate application. The submission of an incomplete application will result in significant delays.

DOER reserves the right to inspect sites and/or request additional technical information prior to approving or denying applications.

Statement of Qualification

Once a project is approved, the owner will receive a Statement of Qualification from DOER. DOER will then post the name of the approved Unit on its website, including additional information about the Unit, and notify the NEPOOL GIS Administrator.


Did you find what you were looking for on this webpage? * required
We use your feedback to help us improve this site but we are not able to respond directly. Please do not include personal or contact information. If you need a response, please locate the contact information elsewhere on this page or in the footer.
We use your feedback to help us improve this site but we are not able to respond directly. Please do not include personal or contact information. If you need a response, please locate the contact information elsewhere on this page or in the footer.

If you need to report child abuse, any other kind of abuse, or need urgent assistance, please click here.