What Nepool GIS does

NEPOOL GIS (New England Power Pool Generation Information System) is the exclusive, regulatorily mandated certificate tracking registry for the ISO New England control area. It issues and tracks Renewable Energy Certificates (RECs) for every MWh of generation and load produced in the region, as well as imported MWh from adjacent control areas, and provides emissions labeling for New England load-serving entities. The platform supports compliance tracking across six state Renewable Portfolio Standard programs in Connecticut, Massachusetts, Maine, New Hampshire, Rhode Island, and Vermont, covering conventional RECs alongside combined heat and power, demand response, conservation, load management, Clean Peak Standard, and thermal REC certificates.

The system is built on a web-based portal (nepoolgis.com) with modules for account registration, generator and project registration, meter data and emissions reporting, certificate transfers (forward and inter-account), compliance retirements, and a public reports suite. Notable modules include NEPOOL Hourly Tracking (released July 2025), VT Tier IV RPS, MA CPS, MA CES-E, and Maine Thermal RECs. A programmatic API with detailed technical specifications supports account-holder integration, and inter-registry transfer connections are maintained with NAR, MIRECS, NC-RETS, NYGATS, PJM-GATS, and ERCOT. The platform integrates with ISO New England settlement data to import settlement and RBA information. As of Q4 2025, the system serves 4,295 account holders, tracks 150,087 generators, and had issued 42.3 million RECs in the 2025 trading year.

NEPOOL GIS is owned and governed by NEPOOL (New England Power Pool), a voluntary association of market participants established in 1971, and has been administered by APX, Inc. as the contracted vendor since the system's inception in 2001. The system operates on a cost-recovery basis: ISO New England incurs expenses for APX's administration and allocates GIS cost charges to account holders annually, with load assets able to request exemptions under state Attribute Laws. APX maintains operations support offices in San Jose, California and a General Counsel office in New York, supporting a small (11-50 employees) registry operations team. Distribution is entirely through the direct web portal and account registration application process — there is no commercial sales motion because participation is mandated by the regional regulatory structure.

Name

Nepool GIS

Legal name

APX, Inc.

Website

https://nepoolgis.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

NEPOOL GIS is the regulatorily mandated certificate tracking system for the ISO New England control area, issuing RECs for every MWh of generation and load and supporting six state RPS programs. It serves 4,295 account holders and 150,087 generators, administered by APX under NEPOOL governance.

Ownership category

akta.pro rank

Product category

Renewable Energy Certificate Registry

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

akta.pro primary industry

Certificate Registry & Transfer Operations (Account Mgmt, Transfers, Retirement) (EUAGAFAH)

akta.pro secondary industries

Certificate Retirement & Claims/Disclosure Management (Scope 2, Fuel Mix, Labeling) (EUAGAFAI), Environmental Reporting, Dashboards & Regulatory Submittals (Automated Reports, e-Reporting) (EUAHAKAL)

Keywords

• Renewable energy certificates
• REC registry tracking
• Emissions attribute tracking
• RPS compliance software
• Generation information system

Headquarters

HQ city

San Jose

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Operations, Infrastructure, Marketing or Sales

Revenue model

1. GIS Cost Charges: NEPOOL GIS is funded through GIS cost charges allocated to account holders by ISO New England. The costs represent expenses incurred by ISO New England for the vendor (APX) that administers the GIS. Load assets can request exemptions from GIS cost charges annually through ISO New England, per state Attribute Laws.
2. Annual Exemption Processing Fees: Load asset owners may request or renew exemptions from GIS cost charges annually. Non-exempt load assets incur charges during the billing cycle. The methodology for allocating GIS costs is documented in ISO New England's Allocation of Costs Related to Generation Information System.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

NEPOOL GIS is a web-based certificate tracking and registry platform that issues and tracks Renewable Energy Certificates (RECs) for every MWh of generation and load produced in the ISO New England control area, as well as imported MWh from adjacent control areas. It provides emissions labeling for New England load-serving entities and supports compliance with state Renewable Portfolio Standards across Connecticut, Massachusetts, Maine, New Hampshire, Rhode Island, and Vermont. The platform includes modules for account registration, generator/project registration, meter data and emissions reporting, certificate transfers and retirements, public reports, and an API for programmatic access.

Product overview

NEPOOL GIS (New England Power Pool Generation Information System) is a unified certificate tracking and management platform operated by APX. The core system issues and tracks Renewable Energy Certificates (RECs) for all MWh of generation and load in the ISO New England control area. The platform includes integrated modules for account registration, generator/project registration, CPS resource registration, meter data and emissions reporting, certificate transfer management (forward and inter-account), public reports suite, bulletin board marketplace, and state-specific compliance tracking (MA DOER, MA CES-E, MA CPS, ME Thermal RECs, VT Tier IV). Hourly tracking capabilities were added in 2025. The system also offers a programmatic API for account holders. NEPOOL GIS connects with other North American registries (NAR, MIRECS, NC-RETS, NYGATS, PJM-GATS, ERCOT) for inter-registry REC transfers.

Differentiator

Problem solved

Functional benefit

Products and services

• NEPOOL GIS Certificate Registry Platform Core Generation Information System that issues and tracks Renewable Energy Certificates (RECs) for every MWh of generation and load produced in the ISO New England control area, as well as imported MWh from adjacent control areas. Provides emissions labeling for New England load-serving entities and supports state RPS compliance certificates across CT, MA, ME, NH, RI, and VT.
• NEPOOL GIS Account Registration Service
• NEPOOL GIS Public Reports Suite Aggregate-level reporting system including Bulletin Board, Emission and Fuel Type Statistics, GIS Certificate Statistics, NEPOOL System Mix, NEPOOL Residual Mix, Generator Production, Imports, Inter-Account Transfers, LSE Obligations, Reserved Certificate Transfers, and MA CPS reports for public consumption.
• NEPOOL GIS API
• NEPOOL Hourly Tracking
• VT Tier IV RPS Eligibility Module
• Massachusetts CPS (Clean Peak Standard) Module
• MA CES-E and ME Thermal RECs Module
• NEPOOL GIS Help Center
• NEPOOL GIS Bulletin Board

Quantifiable outcome

• 8,366,258 RECs issued in Q4 2025
• +3 more outcomes

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature5 records

Partnerships

Three partnerships are on record, tiered core.

• APXcoreImplementation/ SI/ Consulting Partner · 1 January 2001APX is the Administrator of NEPOOL GIS, having been the vendor since the system's inception in 2001. APX delivers certificate issuance and tracking solutions, maintains full audit trail, and provides 24/7 support for all North American renewable energy markets. APX handles all operational aspects of the GIS including account management, system maintenance, and user support via [email protected].
• NEPOOLcoreStrategic or Co-development PartnerNEPOOL (New England Power Pool) owns and governs NEPOOL GIS. Established in 1971 as a voluntary association of market participants from the six New England States, NEPOOL's Participants Committee is the principal governing body that considers and acts on all matters affecting the region's wholesale electric power arrangements. NEPOOL established the GIS in July 2002.
• ISO New EnglandcoreStrategic or Co-development PartnerISO New England is the Independent System Operator for the New England bulk power system and the control area within which NEPOOL GIS operates. ISO New England incurs costs for APX's administration of the GIS and allocates these costs to account holders. The system integrates with ISO-NE settlement data and RBA (Revenue Balancing Agreement) data.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Regional players

• GATS (Canada): GATS is the REC tracking system for Canadian provinces outside Quebec. Comparable in tracking model and attribute-certificate functionality, but operates across Canadian jurisdictions rather than a single U.S. control area.
• ERCOT (Texas) Renewable Energy Credit Program: ERCOT administers REC tracking for the Texas competitive market. Comparable in serving as a regional certificate registry, but the Texas REC program is a smaller subset of its broader market-operator responsibilities and uses different compliance rules.

Direct peers

• NYGATS (New York Generation Attribute Tracking System): NYGATS tracks RECs and imported generation attributes for New York State. Also administered by APX, it is a directly comparable regional REC registry with bundled and inter-registry transfer support that competes with NEPOOL GIS for cross-border imports.
• WREGIS (Western Renewable Energy Generation Information System): WREGIS issues, tracks, and retires RECs and generation attributes for the WECC region — the closest functional analog to NEPOOL GIS in a different U.S. control area, operating the same registry/certificate-tracking model.
• M-RETS (Midwest Renewable Energy Tracking System): M-RETS issues and tracks RECs across the MISO/SPP region with multi-state RPS support. Directly comparable to NEPOOL GIS in tracking model, multi-state compliance coverage, and inter-registry transfer functionality.
• NC-RETS (North Carolina Renewable Energy Tracking System): NC-RETS issues and tracks RECs and Energy Efficiency Certificates for North Carolina's REPS. Directly comparable to NEPOOL GIS in supporting state portfolio-standard compliance and inter-registry certificate movement.
• MIRECS (Michigan Renewable Energy Certification System): MIRECS creates and tracks Michigan-specific RECs, Advanced Cleaner Energy Credits, and Energy Optimization Credits. A direct peer in registry functionality, multi-credit-type support, and APX-administered inter-registry transfers.
• NAR (North American Renewables Registry): NAR tracks RECs for projects outside the U.S. and Canada covered by other regional systems (Quebec, Northern Maine, Puerto Rico). A direct peer in registry infrastructure that explicitly interconnects with NEPOOL GIS for inter-registry transfers.
• PJM-GATS (Generation Attribute Tracking System): PJM-GATS tracks generation attributes and RECs across the PJM Interconnection, the largest U.S. competitive wholesale market. It is a direct peer in product, business model, and inter-registry-transfer interoperability with NEPOOL GIS.

Emerging players

• EnergyTag: EnergyTag is an industry initiative developing standards for hourly Granular Certificates in Europe. It is an emerging/competing model for granular, time-stamped energy attribute tracking that could influence U.S. registry design over time.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nepool GIS