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ISO / Utility Interconnection

Deploy a comprehensive ISO compliance package to participate in the market.

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A Comprehensive CAISO Compliance Package

If you’re navigating the requirements to connect to the electric grid, Trimark is here to help.

To connect resources to CAISO’s control grid, owners must follow CAISO’s New Resource Implementation (NRI) process, install a Remote Intelligent Gateway (RIG), acquire an Energy Communications Network (ECN) connection, and install a CAISO-certified Revenue Meter. Trimark provides complete solutions to help you meet CAISO’s requirements on time and in compliance.

Meet Schedules and Requirements to Join the Energy Market

To participate in CAISO’s markets, resources must follow CAISO’s New Resource Implementation (NRI) process and schedule. That’s the formal process that ensures compliance with the CAISO Tarrif.

Trimark has guided over 900 resources through CAISO’s NRI process. We help you understand what’s required, meet CAISO’s strict deadlines, and work with you to make your project successful.

Our turnkey solutions typically pair NRI services with certified metering, RIGs, design package, equipment cabinets, installation, point-to-point testing, certification, and support for ongoing compliance.

I need guidance through the NRI!

Trimark’s RIG fulfills CAISO’s requirement for realtime data-telemetry. Requirements include:

  • RIG: Supports real-time, secure, bi-directional data telemetry between CAISO and your site equipment (e.g. revenue meters, plant interfaces, meteorological systems, PV inverters, and BESS). Trimark’s RIG includes rugged computing equipment (Trimark Data Gateway or SEL RTAC), software, design, configuration to CAISO’s telemetry-points spreadsheet, SSL certificate, installation, and testing.
  • Telemetry: Resource owners must acquire an ECN connection through AT&T. Trimark will help you order the right thing, at the right time in the process.
  • Market Participation: The RIG accepts and validates set point requests via Automated Generation Control (AGC) and/or CAISO’s Automated Dispatch System (ADS).
  • Cloud-based ADS: Small BESS and PV resources can meet CAISO Dispatch Operating Targets (DOTs) required to participate in the Ancillary Services Market with cloud-based ADS.
  • Support: Once you’re up and running, Trimark offers service agreements including maintenance and real-time monitoring of your RIG, ECN, and meter points. We provide early alerts if there’s trouble — often before CAISO sends a notice. That gives you time to correct issues, avoid penalties and maintain market participation. Trimark supports RIG devices using the Trimark Data Gateway,  SEL RTAC, and NovaTech Orion.
Request a Quote

Certified Metering Solutions

Who do you trust with millions in revenue at stake?

Trimark delivers metering solutions for revenue settlements, incentive programs, and renewable energy credits (RECs).

Trimark’s team includes metering engineers, CAISO-certified meter inspectors, and experienced project managers. We design your metering schemes and networks, procure equipment, configure meters, fabricate cabinets and panels, install meters in the field, connect meters to your CT/PTs, test accuracy and communications, support point-to-point testing, form submittal, then inspect and seal the installation – resulting in a CAISO-certified meter.

  • CAISO Revenue Metering: We’ll help you understand the advantages of CAISO Metering Entity (CAISOME) and Scheduling Coordinator Metering Entity (SCME) approaches, then develop and deliver an end-to-end metering solution to meet your needs and CAISO requirements.
  • BESS Idle: When your Battery Energy Storage System (BESS) is dispatched to Zero or operating in Manual Mode (commonly termed “BESS Idle”), the CAISO Tariff requires that the meter doesn’t record both retail and wholesale load. Trimark can configure your revenue meter to recognize this operating status and avoid duplicate data. Learn More >
  • Complex Losses: Complicated generation environments often require sophisticated solutions to ensure accurate settlements. Trimark is the leader in metering complex PV and BESS clusters, multi-unit generation, and extended interconnection distances.
  • Dynamic Loss Compensation: When multiple sites share a generation tie line, losses change in real time. Trimark’s loss compensation solutions ensure equitable loss assignment and accurate settlements.
  • DC Metering: Many DC-coupled PV+BESS resources measure DC power at the component level – adding a high level of complexity to metering. To support DC-coupled resources, Trimark has pioneered DC meter configuration and testing processes to support the highest accuracy possible.
  • Other Metering: Trimark has extensive experience with large meter networks, AMI, load metering, and more.
  • Support: After installation, Trimark provides annual service agreements for automatic meter reading, meter data management, meter maintenance, repairs, emergency services, audits, and re-certification.
I need a Meter and Expert Help
  • icon-connections
    Expert Guidance Through CAISO NRI

    Meet Schedules and Requirements to Join the Energy Market

    To participate in CAISO’s markets, resources must follow CAISO’s New Resource Implementation (NRI) process and schedule. That’s the formal process that ensures compliance with the CAISO Tarrif.

    Trimark has guided over 900 resources through CAISO’s NRI process. We help you understand what’s required, meet CAISO’s strict deadlines, and work with you to make your project successful.

    Our turnkey solutions typically pair NRI services with certified metering, RIGs, design package, equipment cabinets, installation, point-to-point testing, certification, and support for ongoing compliance.

    I need guidance through the NRI!
  • Remote Intelligent Gateway (RIG)

    Trimark’s RIG fulfills CAISO’s requirement for realtime data-telemetry. Requirements include:

    • RIG: Supports real-time, secure, bi-directional data telemetry between CAISO and your site equipment (e.g. revenue meters, plant interfaces, meteorological systems, PV inverters, and BESS). Trimark’s RIG includes rugged computing equipment (Trimark Data Gateway or SEL RTAC), software, design, configuration to CAISO’s telemetry-points spreadsheet, SSL certificate, installation, and testing.
    • Telemetry: Resource owners must acquire an ECN connection through AT&T. Trimark will help you order the right thing, at the right time in the process.
    • Market Participation: The RIG accepts and validates set point requests via Automated Generation Control (AGC) and/or CAISO’s Automated Dispatch System (ADS).
    • Cloud-based ADS: Small BESS and PV resources can meet CAISO Dispatch Operating Targets (DOTs) required to participate in the Ancillary Services Market with cloud-based ADS.
    • Support: Once you’re up and running, Trimark offers service agreements including maintenance and real-time monitoring of your RIG, ECN, and meter points. We provide early alerts if there’s trouble — often before CAISO sends a notice. That gives you time to correct issues, avoid penalties and maintain market participation. Trimark supports RIG devices using the Trimark Data Gateway,  SEL RTAC, and NovaTech Orion.
    Request a Quote
  • icon-m
    Revenue Metering

    Certified Metering Solutions

    Who do you trust with millions in revenue at stake?

    Trimark delivers metering solutions for revenue settlements, incentive programs, and renewable energy credits (RECs).

    Trimark’s team includes metering engineers, CAISO-certified meter inspectors, and experienced project managers. We design your metering schemes and networks, procure equipment, configure meters, fabricate cabinets and panels, install meters in the field, connect meters to your CT/PTs, test accuracy and communications, support point-to-point testing, form submittal, then inspect and seal the installation – resulting in a CAISO-certified meter.

    • CAISO Revenue Metering: We’ll help you understand the advantages of CAISO Metering Entity (CAISOME) and Scheduling Coordinator Metering Entity (SCME) approaches, then develop and deliver an end-to-end metering solution to meet your needs and CAISO requirements.
    • BESS Idle: When your Battery Energy Storage System (BESS) is dispatched to Zero or operating in Manual Mode (commonly termed “BESS Idle”), the CAISO Tariff requires that the meter doesn’t record both retail and wholesale load. Trimark can configure your revenue meter to recognize this operating status and avoid duplicate data. Learn More >
    • Complex Losses: Complicated generation environments often require sophisticated solutions to ensure accurate settlements. Trimark is the leader in metering complex PV and BESS clusters, multi-unit generation, and extended interconnection distances.
    • Dynamic Loss Compensation: When multiple sites share a generation tie line, losses change in real time. Trimark’s loss compensation solutions ensure equitable loss assignment and accurate settlements.
    • DC Metering: Many DC-coupled PV+BESS resources measure DC power at the component level – adding a high level of complexity to metering. To support DC-coupled resources, Trimark has pioneered DC meter configuration and testing processes to support the highest accuracy possible.
    • Other Metering: Trimark has extensive experience with large meter networks, AMI, load metering, and more.
    • Support: After installation, Trimark provides annual service agreements for automatic meter reading, meter data management, meter maintenance, repairs, emergency services, audits, and re-certification.
    I need a Meter and Expert Help

Expert Perspective

Why does their job matter? Trimark team members explain.

I develop control software that simplifies the operation of utility-scale solar power generation and energy storage. That’s key to making renewable energy stable, reliable, and viable – which is how we’ll save the world.

Brian Buhl

Principal Software Engineer

We help customers meet Utility and ISO control requirements. It’s exciting to bring equipment together to work as a cohesive, efficient system.

Yesenia Chavez

Yesenia Chavez

Control Engineer I

To avoid chaos and support grid reliability and stability, utility-scale resources must tightly manage Voltage, Frequency, NERC and LGIA requirements. Our control solution allows PV and BESS resources to safely connect to the grid, protect their expensive equipment, and bid into more market opportunities.

Stephen Yee

Director of SCADA Controls

We start by understanding our client’s needs. One way we do this is by creating a system block diagram to show Trimark’s equipment and scope. Our customers often rely on our diagrams to make sure everyone is on the same page.

Russell Stansbury

Proposal Manager

Resource owners want to reduce risk, avoid penalties, and maximize revenue. My role is to help customers gain peace of mind and operate confidently in accomplishing their mission.

Tom Short

Chief Operations Support Officer

Projects

Example Projects

Take a minute to see how Trimark has helped resource owners, EPCs, and ISOs change the electric grid.
View All Projects

Alta Wind 4, 5, 8, and 9

Jan 06, 2019

> Project Type: CAISO meter replacements Alta Wind 4 & 5 – Owned by Clearway Energy Alta Wind 8 –…

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Gaskell West 2a, 2b, 2BESS, 3, 4, & 5

Jun 26, 2023

Project Type: 105MW PV, 20MW/80MWh BESS Location: Rosamond, CA Client/EPC: Matrix Renewables Products/Services: Trimark SCADA including Vantage, Trimark Remote Intelligent…

Learn More

39 CAISO Remote Intelligent Gateway (RIG) Replacements for Compliancy

Jan 29, 2020

Project Type: PV generating facilities – 39 sites Location: Throughout CA with one site in AZ Client/EPC: 39 customers Products/Services:…

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U.S. Navy – Naval District Washington Energy Management

Jan 01, 2019

Installed 1,043 advanced energy meters to track energy usage throughout Northern Virginia, Washington D.C., and Maryland. Work involved 14 separate…

Learn More