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Net Metering (Massachusetts)
DSIRE/DtAdd 2000-01-01  +
DSIRE/LstUpdt January 31, 2013  +
EZFeed/Relevant Yes  +
Incentive/Active true  +
Incentive/AggrCapLimit 3% of utility's peak load for private entities; 3% of utility's peak load for municipalities or governmental entities.  +
Incentive/ApplDsc Agricultural  + , Commercial  + , Fed. Government  + , Industrial  + , Institutional  + , Local Government  + , Nonprofit  + , Residential  + , Schools  + , State Government  +
Incentive/ApplicUtils Investor-owned utilities  +
Incentive/Auth10Code Order Adopting Final Regulations D.P.U. 12-81-A  +
Incentive/Auth10DtEff 2012-11-01  +
Incentive/Auth10DtEnact 2013-01-18  +
Incentive/Auth10Link  +
Incentive/Auth2Code 220 CMR 11.04  +
Incentive/Auth2DtEff 1997 (subsequently amended)  +
Incentive/Auth2Link  +
Incentive/Auth3Code 220 CMR 18.00 et seq.  +
Incentive/Auth3Link  +
Incentive/Auth4Code 220 CMR 8.00 et seq.  +
Incentive/Auth4Link  +
Incentive/Auth5Code Order Adopting Net Metering Rules (Docket 11-10)  +
Incentive/Auth5DtEnact 2012-02-17  +
Incentive/Auth5Link  +
Incentive/Auth6Code Order Adopting a System of Assurance of Net Metering Eligibility Docket 11-11 A  +
Incentive/Auth6DtEff 2012-05-07  +
Incentive/Auth6DtEnact 2012-05-07  +
Incentive/Auth6Link  +
Incentive/Auth7Code Net Metering Model Tariff  +
Incentive/Auth7DtEnact 2012-07-09  +
Incentive/Auth7Link  +
Incentive/Auth8Code S.B. 2395 (Session Law Chapter 209)  +
Incentive/Auth8DtEnact 2012-08-03  +
Incentive/Auth8Link  +
Incentive/Auth9Code Order on Definitions of Unit and Facility Docket 11-11  +
Incentive/Auth9DtEff 2012-08-24  +
Incentive/Auth9DtEnact 2012-08-24  +
Incentive/Auth9Link  +
Incentive/AuthCode M.G.L. ch. 164, § 1G et seq. (subsequently amended)  +
Incentive/AuthLink  +
Incentive/ContAddr One South Station  +
Incentive/ContAddr2 Fourth Floor  +
Incentive/ContDept Department of Public Utilities  +
Incentive/ContDiv Electric Power Division  +
Incentive/ContEmail  +
Incentive/ContName Morgane Treanton  +
Incentive/ContPlace Boston, Massachusetts  +
Incentive/ContZip 02110  +
Incentive/DsireLstSubModSummaryUpdt January 31, 2013  +
Incentive/DsireSyncDate 2011-04-30 16:26:21  +
Incentive/EnergyCat Renewable Energy Incentive Programs  +
Incentive/ImplSector State/Territory  +
Incentive/MtrAggr Neighborhood net metering allowed  +
Incentive/Name Net Metering  +
Incentive/NetExcGen Varies by system type and customer class  +
Incentive/RECOwn Customer owns RECs  +
Incentive/Summary In Massachusetts, the state's investor-own
In Massachusetts, the state's investor-owned utilities must offer net metering. Municipal utilities are not obligated to offer net metering, but they may do so voluntarily. (There are no electric cooperatives in Massachusetts.) <b><i>Class I, Class II, Class III net metering facilities</i></b> In Massachusetts, there are several categories of net-metering facilities. "Class I" facilities are generally defined as systems up to 60 kW in capacity. "Class II" facilities are generally defined as systems greater than 60 kW and up to one megawatt (MW) in capacity that generate electricity from agricultural products, solar energy or wind energy. "Class III” facilities are generally defined as systems greater than 1 MW and up to 2 MW in capacity that generate electricity from agricultural products, solar energy or wind energy. Massachusetts also allows “neighborhood net metering” for neighborhood-based Class I, II or III facilities that are owned by (or serve the energy needs of) a group of 10 or more residential customers in a single neighborhood and served by a single utility. The neighborhood facility may also serve additional customers (including commercial) as long as the base requirements are met. All net-metered facilities must be behind a customer’s meter, but only a minimal amount of load located on-site is required. In aggregate, these "non-governmental facilities" may not exceed 3% of the distribution company’s peak load.* <b><i>Municipal or Government net metering facility</i></b> Legislation in 2010 introduced an additional definition for "a net metering facility of a municipality or other governmental entity.” This type of net metered facility must be either Class II or Class III, as defined above, and must be owned by a municipality or governmental entity or the entity must use all of the facility's output. Net metering facilities by a municipality or other governmental entity up to 10 MW are eligible. In aggregate, these municipal or governmental facilities may not exceed 3% of the distribution company's peak load. Massachusetts requires that the utilities report on their aggregate capacity of net metered facilities regularly, since in some instances utilities may be approaching the caps. For explicit definitions of "facilities" and "units," applicable to all types of net metering facilities, see the Department of Public Utilities' (DPU) <i>Order on Definitions of Unit and Facility</i> Docket 11-11 from August 2012. The treatment of customer net excess generation (NEG) varies by facility class and customer type. In all cases, the NEG is monetized and Net Metering Credits are calculated based on the excess kilowatt hours (kWh) produced. In summary, value of the Net Metering Credits at the end of a billing period is slightly less than the utility’s full retail rate for Class I solar and wind facilities, Class II facilities, and Class III facilities used by government customers as they would receive credit for the default service, distribution, transmission, and transition charge (kilowatt hour, kWh). Net Metering Credits for Class III facilities and neighborhood facilities that are used by customers other than government entities differs only in that they do not receive credit for the distribution component. Class II and Class III customers are required to install revenue-grade meters to measure kWh output. Credits may be carried forward to the next month indefinitely, and credits from net metering facilities may be transferred to another customer of the same utility as long as they are within the same service territory and ISO-NE load zone. Utilities may choose to pay for the net metering credits for Class III facilities rather than allocating the credits. If a neighborhood facility has NEG at the end of a billing period, the credits are awarded to designated neighborhood customers. The amount of NEG attributed to each such customer is determined by the allocation provided by the neighborhood net metering facility. Third-party owned systems may be net metered. Utilities are not granted the renewable energy credits or environmental attributes generated by a net-metered facility. As part of the interconnection application, customers applying for net metering must complete "Schedule Z." See [ Massachusetts' Interconnection] in DSIRE for more information. Because net metering has an aggregate capacity cap, as described above, the DPU passed a "System of Assurance of Net Metering Eligibility" in May 2012 for customers of investor-owned utilities. This will serve as a net metering queue and help potential net metering customers know in advance if their system will be allowed to net meter or not. The company, The Cadmus Group, Inc., has been chosen as the administrator of the system of assurance. All investor-owned utility customers with systems greater than 10 kilowatts on a single-phase circuit and all systems great than 25 kilowatts on a three-phase circuit wishing to net meter must apply for a "cap allocation" online via the Massachusetts Application for Cap Allocations web site ([]). There is a $100 application fee and the applicant must have an executed Interconnection Service Agreement (ISA) from the utility. <b>History</b> Net metering was originally authorized for renewable-energy systems and combined-heat-and-power (CHP) facilities with a generating capacity up to 30 kilowatts (kW) by the Massachusetts Department of Public Utilities in 1982. In 1997, the maximum individual system capacity was raised to 60 kW and customers were permitted to carry any net excess generation (NEG) -- credited at the "average monthly market price of generation" -- to the next bill. In July 2008, net metering was significantly expanded by [ S.B. 2768] and the DPU adopted rules implementing the law in June 2009. The Massachusetts Department of Public Utilities (DPU) amended net-metering rules in July 2009 (see final order). These DPU rules were ordered in accordance with the legislative changes instituted in 2008. Furthermore in August 2009, the DPU issued its model net metering tariff and new utility net metering tariffs for the state's investor-owned utilities (Unitil, National Grid, NSTAR, and Western Massachusetts Electric Company) became effective December 2009. The law was amended again in 2010 ([ H.B. 5028]), and new rules promulgated in February 2012. A new model tariff and utility tariffs were finalized in July 2012 in [ Docket 12-01]. ''* For the purpose of calculating the aggregate capacity, the capacity of a net-metered solar facility is 80% of the facility’s DC rating at standard test conditions (STC) and the capacity of a net-metered wind facility is the name plate capacity.''
ind facility is the name plate capacity.''  +
Incentive/SysCapLimit 10 MW for net metering by a municipality or other governmental entity; 2 MW for all other "Class III" systems; 1 MW for all other "Class II" systems; 60 kW for all other "Class I" systems  +
Incentive/TechDsc Anaerobic Digestion + , Biomass + , CHP/Cogeneration + , Fuel Cells + , Geothermal Electric + , Hydroelectric energy + , Municipal Solid Waste + , Other Distributed Generation Technologies + , Photovoltaics + , Small Hydroelectric + , Solar Thermal Electric + , Wind +
Incentive/Type Net Metering +
OpenEI/PageDescription Net Metering: energy incentive program.  +
OpenEI/PageKeyword Energy Incentives  + , Massachusetts  + , Net Metering  +
Place Massachusetts: Energy Resources +
Website  +
Categories Rules Regulations Policies Incentive Programs , Incentive with Contacts , Incentive with Authorities
Modification date
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15:38:59, 12 February 2015  +
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