Appendix H - Interconnection Facilities Cost and Schedule Information
Component
Technical
Author
Hawaiian Electric
Stakeholder
Hawaiian Electric
Describes the interconnection facilities and telecommunications systems required (with their associated costs) for the implementation of community energy projects.
Xcel Energy (Northern States Power – Minnesota) – Peak Flex Credit Pilot Program (MISO Aggregator Participation Pilot)
Component
Business
Author
Xcel Energy – NSP Minnesota (utility’s regulatory filing and program documents).
Stakeholder
Xcel Energy (Northern States Power – Minnesota), grid edge resource aggregators participating in MISO, Large commercial & industrial customers in Minnesota, MISO, Minnesota PUC
Xcel Energy's peak flex credit pilot, approved by the Minnesota Public Utilities Commission (PUC) in March 2022, enables aggregated retail demand response to participate in Midcontinent Independent System Operator's (MISO's) wholesale market. The 86 MW program is split between utility-enrolled and third-party aggregator customers. Aggregators must enroll at least 100 kW of C&I load and execute an agreement with Xcel. Participants earn bill credits for reducing load during peak events. The program aligns with FERC Order 2222 and MISO protocols, with utility oversight and cost recovery through existing demand response budgets.
Order Approving Settlement and Establishing a Process for Developing a Statewide Data Platform
Component
Institutional
Author
NH PUC
Stakeholder
State of New Hampshire Public Utilities Commission
Order from the New Hampshire Public Utilities Commission approving the design and framework for implementation of a statewide Multi-Use Energy Data Platform. The platform is envisioned to enable customers and third-party energy providers to access energy consumption data from electric and gas utilities using Green Button Connect protocols.
Enabling the Next Generation Electric Grid through Data Integration – Pacific Northwest National Laboratory Report PNNL-32679
Component
Technical
Author
Alexander A. Anderson, Eric G. Stephan, Thomas E. McDermott – Pacific Northwest National Laboratory (with U.S. DOE sponsorship).
Stakeholder
The report is broadly applicable to U.S. electric utilities and grid operators. (For example, power utilities and vendors adopting CIM standards – no specific company is singled out, but the content is relevant to any utility implementing enterprise data
A technical report introducing key concepts and use cases for adopting a “common” information-sharing model in power systems. It outlines how a standardized semantic data model (CIM) can facilitate data exchange—including exchanging power network models between utilities, integrating data between applications within a utility, and sharing market/operational data among market participants . The goal is to reduce custom interfaces and data silos by using a common vocabulary for grid assets and messages.
Robert Broderick
Brooke Marshall Garcia
Samantha E. Horn
Matthew S. Lave
Stakeholder
Sandia National Laboratories
Provides the microgrid conceptual design methodology—system characterization and goal definition, identifying policy and regulatory constraints, defining the design basis threats, and identifying critical loads and infrastructure.
Federated Architecture for Secure and Transactive grid edge resource Management Solutions (FAST-DERMS): System Architecture and Reference Implementation
Component
Technical
Author
NREL: Fei Ding, Weijia Liu, Jason MacDonald, James Ogle, Annabelle Pratt, Avijit Saha, Joe Hagerman, and Murali Baggu
Stakeholder
The architecture is designed to be applicable to various utilities and grid edge resource aggregators.
This technical report, authored by National Renewable Energy Laboratory (NREL), provides system-level specifications for a federated architecture designed to securely and efficiently manage grid edge resources. The Federated Architecture for Secure and Transactive (FAST)-DERMS framework aims to aggregate and coordinate grid edge resource operations to support both transmission and distribution grid services, ensuring System reliability and safety.
Public Service of New Mexico Grid Modernization Plan
Component
Technical
Author
Public Service of New Mexico
Stakeholder
Public Service of New Mexico
PNM's Grid Modernization Plan includes a description of how systems such as ADMS, Outage Management System, Geographic Information System, and DERMS and supporting communications technologies could be deployed to enable the utility's grid modernization objectives.
Rhode Island Energy Grid Modernization Solutions Roadmap
Component
Business
Author
Rhode Island Energy
Stakeholder
Rhode Island Energy
Rhode Island Energy's Grid Modernization Solutions Roadmap describes how the utility will incrementally advance its capabilities to use tools such as ADMS. See the discussion starting on page 129.
Describes how Hawaiian Electric uses a suite of modeling tools to identify near-term quantity and timing of grid needs and evaluate potential solutions.
Integrated Distribution Plan Docket No. E002/M-21-694
Component
Business
Author
Xcel Energy
Stakeholder
Xcel Energy
The Integrated Distribution Plan (IDP) outlines Xcel Energy's strategy for modernizing and operating its distribution system to ensure safe, reliable, and affordable power delivery. It details infrastructure planning, grid edge resource forecasts, financial planning, and grid modernization efforts to support a more decentralized energy future. The IDP also seeks certification for initiatives like distributed intelligence and the resilient Minneapolis project, aiming to enhance grid reliability, customer engagement, and energy resilience.
Enabling Third-Party Aggregation of Grid Edge Resources
Component
Institutional
Author
Regulatory Assistance Project (RAP)
Stakeholder
Utilities, aggregators, regulatory bodies
This report, written to assist the Arkansas Public Service Commission, discusses the regulatory considerations for allowing third-party aggregators to participate in energy markets. It emphasizes the importance of establishing a code of conduct to ensure fair competition between utilities and aggregators, protect consumer interests, and create a robust market environment.
Hawaii Public Utilities Commission (PUC) Grid Edge Resource Program Framework; Docket No. 2019-0323
Component
Institutional
Author
Hawaii Public Utilities Commission
Stakeholder
Hawaiian Electric, local government agencies, grid edge resource developers, community organizations
A framework for integrating grid edge resources focused on establishing defined retail energy and distribution grid services, including rate design such as the implementation of time-of-use rates to incentivize customers to align energy consumption with grid needs; grid edge resource programs that compensat customers for energy exports and grid services, like the introduction of the smart grid edge resource tariff and bring-your-own-device tariff; and streamlining interconnection processes and updating technical standards to facilitate grid edge resource participation.
The IEEE 2030.11 standard provides a functional specification for a DERMS and a description of the grid services that aggregations of grid edge resources.
Decision and Order No. 37786 approving the microgrid Services Tariff (Phase 1)
Component
Institutional
Author
Hawaii Public Utilities Commission (Commissioners of the PUC)
Stakeholder
Hawaiian Electric Company, Inc. (and Hawaiʻi Electric Light Co. and Maui Electric Co.) – the incumbent utilities required to implement the tariff ; prospective microgrid project operators (e.g., private developers or community organizations); the Division
A Hawaii Public Utilities Commission (PUC) decision and order that approved a microgrid services tariff for the Hawaiian Electric Companies. The tariff's purpose is to promote microgrid development and remove regulatory barriers so that microgrids can operate during emergencies. In this phase 1 order, the PUC eliminated certain constraints—for example, it removed a program size cap and operator fees and declined to impose standby charges—to encourage microgrids to serve customers during outages. The order established the framework for microgrid project agreements (including a standard hybrid microgrid agreement) and included an microgrid participants' bill of rights to ensure service and safety standards for customers. Outstanding issues (e.g., compensation for services in non-emergency periods) were deferred to a phase 2 proceeding.
Small Generator Facility Interconnection - PC44 Interconnection Workgroup Phase III Final Report
Component
Institutional
Author
Maryland Public Service Commission Interconnection Working Group
Stakeholder
Maryland Public Service Commission
Recommendations on adopting Minimum Statewide Default Standards (MSDS) for smart inverters or distribution utility-specific inverter settings. IEEE 1547-2018 smart inverter functions of importance and associated policies and defaults proposed by the working group for statewide standards.
New York Public Service Commission (NYPSC) Data Access Framework
Component
Institutional
Author
NYPSC
Stakeholder
New York State Public Service Commission (NY PSC), New York State Energy Research and Development Authority (NYSERDA), Con Edison, National Grid New York, Avangrid (New York State Electric and Gas [NYSEG] & Rochester Gas and Electric), Central Hudson Gas
Orders the creation of a standardized statewide data access framework in New York, governing access to energy-related data, enabling customers to securely share their energy usage information with authorized third parties, thereby facilitating grid edge resource integration and participation in energy markets.
Ameren Missouri’s Response to Order Opening a Working Case Regarding FERC Order 2222 (Participation of grid edge resource Aggregators in RTO Markets
Component
Technical
Author
Filed by Ameren Missouri – signed by James B. Lowery (attorney, JBL Law) and Wendy K. Tatro (Director & Assistant General Counsel, Ameren) on behalf of the company
Stakeholder
Ameren Missouri (Union Electric Company) authored the response; it was part of Missouri PSC Case EW-2021-0267 (a Commission-led workshop on FERC Order 2222) . The issues discussed affect Missouri’s investor-owned utilities (Ameren and others like Evergy),
A utility-filed document in a Missouri Public Service Commission working case, detailing how retail rules and utility practices may need to adapt for grid edge resource aggregations. Ameren Missouri’s response emphasizes validation and compliance checks at the distribution level before grid edge resources can participate in wholesale markets. It raises consumer protection issues (e.g., requiring grid edge resource aggregators to register with the state and adhere to marketing standards to prevent fraud) . It discusses the need for enhanced metering and telemetry so that when a customer’s behind-the-meter resource provides wholesale services, the utility can measure those injections separately—ensuring retail billing credits (like net metering) and wholesale payments don’t overlap or double count the same energy . The filing also notes potential distribution infrastructure upgrades and operating procedures to maintain safety/reliability with aggregated grid edge resource dispatch (for instance, communication protocols for outage coordination and mechanisms for the utility to override or constrain aggregator dispatch for local grid safety). Overall, it outlines how the PSC should develop rules on interconnection, data sharing, dual participation, and dispute resolution between aggregators and utilities.