South Dakota’s interconnection standards for distributed generation, adopted by the state Public Utilities Commission (PUC) in May 2009, apply to customers of investor-owned utilities.* The rules provide for four levels of interconnection for systems up to 10 megawatts (MW) in capacity:
The Pennsylvania Public Utilities Commission was required to adopt interconnection standards and net-metering rules by the Alternative Energy Portfolio Standards Act of 2004.The PUC subsequently adopted interconnection standards for net-metered distributed generation (DG) systems in August 2006 (52 Pa. Code § 75.21 et seq.).
New York first adopted uniform interconnection standards in 1999 (see history below). The Standard Interconnection Requirements (SIR) have subsequently been amended several times since, most recently with the adoption of far reaching revisions in February 2009. Several more minor revisions necessitated by changing net metering laws have taken place since that time. Most recently, amendments were made to the SIR in March 2013 in order to simplify and expedite the interconnection application and review process, and to adopt changes made to net metering law in 2012.
Interconnection in New Mexico is governed by New Mexico Public Regulation Commission (PRC) Rule 568 and Rule 569. These rules, adopted in July 2008, revised and clarified the state's existing rules. Rule 569 applies to all qualifying facilities (QFs) under PURPA, which generally includes all renewable-energy systems and combined-heat-and-power (CHP) systems up to 80 megawatts (MW) in capacity.
New Hampshire requires all utilities selling electricity in the state to offer net metering to customers who own or operate systems up to one megawatt (1 MW) in capacity that generate electricity using solar, wind, geothermal, hydro, tidal, wave, biomass, landfill gas, bio-oil or biodiesel. CHP systems that use natural gas, wood pellets, hydrogen, propane or heating oil are also eligible.* The aggregate statewide capacity limit of all net-metered systems is 50 MW.
Minnesota's net-metering law, enacted in 1983, applies to all investor-owned utilities, municipal utilities and rural electric cooperatives. Qualifying facilities of less than 1,000 kilowatts (kW) are eligible for net metering. However, uniform interconnection regulations were not implemented when net metering was established.
The Michigan Public Service Commission (PSC) first adopted interconnection standards for distributed generation (DG) in September 2003. The original standards provided for 5 levels of interconnection with cutoffs at 30 kilowatts (kW), 150 kW, 750 kW, and 2 megawatts (MW), but left many details of the interconnection process up to the utilities. In October 2008 Michigan enacted [http://www.legislature.mi.gov/documents/2007-2008/publicact/pdf/2008-PA-... Public Act 295 (P.A.
Note: Legislation enacted in August 2012 required the Massachusetts Department of Public Utilities (DPU) to develop an enforceable, standard interconnection timeline for distributed generation facilities. In March 2013 in [http://www.env.state.ma.us/DPU_FileRoom/frmDocketSingleSP.aspx?docknum=1... Docket 11-75], the DPU approved the Working Group's proposed timeline along with an interim enforcement mechanism.