225 CMR 21.05
Eligibility Criteria for Clean Peak Resources
(1) Eligibility Criteria. A Clean Peak Resource may qualify for a Statement of Qualification
subject to the limitations in 225 CMR 21.05. The Department shall publish a Guideline on Clean
Peak Resource Eligibility that explains the parameters of eligibility requirements.
(a) Energy Resources and Technologies. The Clean Peak Resource shall use one or more
of the energy resources or technologies listed in 225 CMR 21.05(1)(a)1. through 3. The
Clean Peak Resource shall be interconnected with or offset load otherwise served by the
Distribution System, or shall be interconnected with the Transmission System in the
Commonwealth of Massachusetts. Clean Peak Resources must demonstrate that they
generate, dispatch, or discharge electricity to the electric distribution system in
Massachusetts. Resources interconnected within the service territoryof a municipal lighting
plant shall be ineligible to generate Clean Peak Energy Credits under 225 CMR 21.00 as
municipal lighting plants are exempt from the requirements of the Clean Peak Standard
pursuant to M.G,L, c. 25A, § 17(d).
1. Qualified RPS Resources.
a. RPS Class I Renewable Generation Units with a Commercial Operation Date on or
after January 1, 2019 that have received a Statement of Qualification and meet all other
applicable requirements.
b. RPS Class I Renewable Generation Units and RPS Class II Renewable Generation
Units with a Commercial Operation Date prior to January 1, 2019, that are co-located
with a Qualified Energy Storage System that has a Commercial Operation Date on or
after January 1, 2019, subject to the following:
i. Minimum Nominal Rated Power. The nominal rated power capacity of a
Qualified Energy Storage System paired with a RPS Class I Renewable Generation
Unit or RPS Class II Renewable Generation Unit must be at least 25% of the
nameplate power rating of the RPS Class I Renewable Generation Unit or RPS
Class II Renewable Generation Unit.
Special Provisions for De-rated Qualified Energy Storage Systems paired
with RPS Class I Renewable Generation Units and RPS Class II Renewable
Generation Units. A Qualified Energy Storage System's nominal rated power
capacity may be de-rated to meet the four hour minimum nominal useful energy
requirements in 225 CMR 21.05(1)(a)1.b.i. provided its de-rated power capacity
is still at least 25% of the nameplate power rating of the RPS Class I Renewable
Generation Unit or RPS Class II Renewable Generation Unit with which it is
paired.
ii. Minimum Nominal Useful Energy. The nominal useful energy capacity of the
Energy Storage System must be at least four hours at the nominal rated power.
iii. Co-location. The RPS Class I or Class II Renewable Generation Unit and the
Qualified Energy Storage System must be located on the same or adjacent parcels
within the same Distribution Company's service territory, and must be interconnected
to the same common collector located on the same parcel(s) on which the RPS
Class I or Class II Renewable Generation Unit and Qualified Energy Storage System
facilities are located.
2. Qualified Energy Storage Systems: A Qualified Energy Storage System must operate
primarily to store and discharge renewable energy as demonstrated by one or more of the
following factors:
a. Co-location with a Qualified RPS Resource as defined in 225 CMR 21.02 where the
Qualified RPS Resource must have a nameplate capacityof at least 75% of the nameplate
capacity of the energy storage;
b.
Contractual pairing with a Qualified RPS Resource that demonstrates to the
Department's satisfaction that the Qualified Energy Storage System operates primarily
to store and discharge renewable energy;
c. Charging coincident with periods of typically high renewable energy production as a
percent of the grid generation mix as defined below;
1. Spring: 12:00 A.M. until 6:00 A.M. and 8:00 A.M. until 4:00 P.M.
2. Summer: 12:00 A.M. until 6:00 A.M. and 7:00 A.M. until 2:00 P.M.
3. Fall: 12:00 A.M. until 6:00 A.M. and 9:00 A.M. until 3:00 P.M.
4. Winter: 12:00 A.M. until 6:00 A.M. and 10:00 A.M. until 3:00 P.M.
Energy Storage Charging Windows
Clean Peak
Season
Wind-based Charging Hours
Solar-based Charging Hours
Spring
12:00 A.M. - 6:00 AM
8:00 A.M. - 4:00 P.M.
Summer
12:00 A.M. - 6:00 AM
7:00 A.M. - 2:00 P.M.
Fall
12:00 A.M. - 6:00 AM
9:00 A.M. - 3:00 P.M.
Winter
12:00 A.M. - 6:00 AM
10:00 A.M. - 3:00 P.M.
d.
Inclusion of an operational schedule in the Qualified Energy Storage System's
Interconnection Service Agreement demonstrating that the Qualified Energy Storage
System serves to resolve load flow or power quality concerns otherwise associated with
intermittent renewable energy resources.
3. Demand Response Resources: Demand Response Resources must demonstrate that
changes to electric usage from their normal consumption patterns are measurable and
verifiable. The Department shall publish a Guideline on Demand Response Resources to
explain the parameters of Demand Response Resources in the Clean Peak Standard.
A facility that generates electricity, including a Qualified RPS Resource, shall not be
considered a Demand Response Resource.
(2) Metering. A Clean Peak Resource shall meter and report 15-minute interval performance
in compliance with standards and protocols as established by a third-party Program
Administrator designated by the Department. The Department may grant an exception to the
15-minute interval and designate a shorter or longer interval on a case-by-case basis. The
Program Administrator shall be the designated independent third-party meter reader, as defined
in Rule 2.5(j) of the NEPOOL GIS Operating Rules, or any successor rule. All standards and
metering protocols shall be subject to review and approval by the Department. A Clean Peak
Resource shall submit metered data to the Program Administrator for all hours of the previous
month. Subject to review and approval by the Department, the Program Administrator may
assess Clean Peak Resources a fee associated with the administration of the CPS.
The electrical energy output or performance of a Clean Peak Resource shall be verified by the
Program Administrator for the purpose of calculating the number of Clean Peak Energy
Certificates a qualified resource produced in the previous month. The Program Administrator
shall report the number of Clean Peak Energy Certificates each qualified resource is due to
receive to NEPOOL GIS for the purpose of minting Clean Peak Energy Certificates.
(3) Clean Peak Seasons.
(a) The four Clean Peak Seasons are established as:
1. Spring: March 1st through May 14th;
2. Summer: May 15th through September 14th;
3. Fall: September 15th through November 30th;
4. Winter: December 1st through February 28th; and as adjusted by leap years.
(4) Seasonal Peak Periods. The Seasonal Peak Periods establish the time of day in which a
qualified resource produces Clean Peak Energy Certificates.
(a) The Seasonal Peak Periods are established as the periods of all Business Days in each
Clean Peak Season that historically coincide with Massachusetts' peak electricity demand:
1. Spring: from 5:00 P.M. until 9:00 P.M.
2. Summer: from 4:00 P.M. until 8:00 P.M.
3. Fall: from 4:00 P.M. until 8:00 P.M.
4. Winter: from 4:00 P.M. until 8:00 P.M.
(5) Clean Peak Energy Certificate Generation. Clean Peak Energy Certificates generated by a
Clean Peak Resource shall be equal to the sum of the metered average MW performance of a
Clean Peak Resource for each hour during a Seasonal Peak Period, multiplied by the Seasonal
Multiplier, and any other applicable multipliers as described in 225 CMR 21.05(6)(c) through
(g), plus the metered average MW performance during the Hour of Actual Monthly System Peak
Demand, multiplied bythe Seasonal Multiplier, the Actual MonthlySystem Peak Multiplier, and
any other applicable multipliers as described in 225 CMR 21.05(6)(c) through (g).
(6) Clean Peak Energy Certificate Multipliers. The Clean Peak Energy Certificate Multipliers
shall modify the number of Clean Peak Energy Certificates that a Clean Peak Resource generates
as follows:
(a) Seasonal Multiplier. Seasonal multipliers are established for each Clean Peak Season
to reflect the level of emissions and magnitude of peak demands in a season. Seasonal
Multipliers shall be:
a. Spring: 1
b. Summer: 4
c. Fall: 1
d. Winter: 4
(b) Actual Monthly System Peak Multiplier. The Actual Monthly System Peak Multiplier
shall modify the number of Clean Peak Energy Certificates generated during the Hour of
Actual Monthly System Peak. The multiplier shall be 25.
(c) Resilience Multiplier. The Resilience Multiplier modifies the number of Clean Peak
Energy Certificates generated by a Clean Peak Resource that is also a Resilient Facility and
can provide electric power to a load during external outage conditions. Clean Peak
Resources that can demonstrate the added ability to provide electricity to load during an
external outage will receive a Resilience Multiplier on all eligible output occurring during
Seasonal Peak Periods. The multiplier shall be 1.5.
(d) Existing Resource Multiplier. The Existing Resource Multiplier modifies the number
of Clean Peak Energy Certificates generated by an Existing Resource. The multiplier shall
be 0.1.
(e) Contracted Resource Multiplier. The Contracted Resource Multiplier modifies the
number of Clean Peak Energy Certificates generated by a Contracted Resource. The
multiplier shall be 0.01.
(f) SMART ES Resource Multiplier. The SMART ES Resource Multiplier modifies the
number of Clean Peak Energy Certificates generated by a SMART ES Resource. The
multiplier shall be 0.3.
(g) Distribution Circuit Multiplier. The Department may establish a Distribution Circuit
Multiplier that modifies the number of Clean Peak Energy Certificates generated by a Clean
Peak Resource based on the locational value of the unique load profile and particular needs
of each distribution circuit, as defined by the Department, in consultation with the
Distribution Companies. Clean Peak Resources which are ownedbyaDistribution Company
are not eligible for a Distribution Circuit Multiplier. The Department may consider
Distribution Circuit Multipliers greater than or less than one.
The Department, in
coordination with the Distribution Companies, shall determine whether sufficient data is
available to enable effective implementation of a Distribution Circuit Multiplier no later than
December 31, 2022. If the Department determines that a Distribution Circuit Multiplier shall
be established, the Department shall publish a Guideline on the Distribution Circuit
Multiplier that provides the multiplier amount(s) and explains the parameters of the
applicability of the Distribution Circuit Multiplier.
(h)
Near-term Resource Multiplier. The Near-term Resource Multiplier modifies the
number of Clean Peak Energy Certificates generated by a Standalone QESS that is not
co-located with a Qualified RPS Resource or a Demand Response Resource and is
interconnected to the Distribution System. The Qualified Energy Storage System must not
have received a Statement of Qualification on or before January 1, 2025, and must have a
Commercial Operation Date before January 1, 2027. No Qualified Energy Storage System
shall receive both the Distribution Circuit Multiplier and the Near-term Resource Multiplier.
The Department shall set an initial eligibility cap for the Near-term Resource Multiplier of
50 MW of cumulative Qualified Energy Storage System capacity. After notice and
opportunity for public comment, the Department may increase this cap in the future. No
individual or affiliated Owner, Operator, or Authorized Agent may qualify for greater than
50% of the capacitydesignated bythe Department. The multiplier shall be two for years one
through ten from the Qualified Energy Storage System's effective date on its Statement of
Qualification, provided that no energy discharged from a Qualified Energy Storage System
shall have its Clean Peak Energy Certificates modified by the multiplier after the deadline
specified under 225 CMR 21.05(6)(h)2. The Department may publish a guideline that
explains the parameters of the applicability of the Near-term Resource Multiplier.
1. Extension to Commercial Operation Date Requirement for Good Cause. A Qualified
Energy Storage System subject to the requirement to have a Commercial Operation Date
before January 1, 2027 under 225 CMR 21.05(6)(h) may request an extension for good
cause. Any request for an extension for good cause under this provision shall include
evidence of a good faith effort to achieve a Commercial Operation Date of January 1,
2027 and evidence of delays outside the Owner, Operator, or Authorized Agent's control,
including, but not limited to, supply-chain constraints and interconnection delays.
2. Expiration of Near-term Resource Multiplier. No energydischarged from a Qualified
Energy Storage System shall have the associated number of Clean Peak Energy
Certificates modified by the Near-term Resource Multiplier after December 31, 2036.
(i) Review. Beginning in 2024 and not less frequently than every four years thereafter, the
Department shall conduct a review of the Clean Peak Energy Certificate Multipliers and,
following stakeholder review and input, may modify the multipliers.
(7) Special Provision for Clean Peak Energy Certificate Generation for Energy Reserves.
(a) The Department may establish a mechanism by which Clean Peak Energy Certificates
may be generated by provision of energy reserves, subject to applicable requirements
including, but not limited to, such provision of energyreserves being directlymeasurable and
verifiable in accordance with 225 CMR 21.05(2). The Department shall determine whether
such a mechanism can be implemented no later than December 31, 2020. If the Department
determines that such a mechanism shall be established, the Department shall publish a
Guideline on Energy Reserves that explains the mechanism and its applicability.
(8) Clean Peak Certificate Procurement.
(a) Each Distribution Company shall competitively procure Clean Peak Energy Certificates
pursuant to M.G.L. c. 25A, § 17(c). Clean Peak Certificate procurements shall be designed
to achieve an initial target of at least 30% of the total market obligation of Retail Electricity
Suppliers in a given Compliance Year. No later than November 12, 2024, the Department
shall establish a staggered procurement schedule for the issuance for requests for proposals
for Clean Peak Certificates.
(b) The Department may adjust the procurement target in response to the Market Supply in
any Compliance Year. After notice and opportunity for public comment, the Department
may increase the target for the Clean Peak Certificate Procurement or determine that
additional procurements are not required based on Market Supply conditions.
(c) A request for proposals to conduct the competitive procurement shall be developed by
the Distribution Companies, in consultation with and subject to review and approval by the
Department. Such request for proposals may include the following components:
(d) Any contracts resulting from a competitive procurement under this section shall be
subject to review and approval by the Department of Public Utilities.
(e) The Department may establish a Guideline on Clean Peak Certificate Procurements that
explains the parameters and provides additional detail to the procurement process.