---
title: 'Interconnection Engineer at TransGrid Energy'
canonical: 'https://feeny.ai/job/interconnection-engineer-transgrid-energy-irvine-63rh4xtp738g'
type: 'job'
last_seen: '2026-10-16'
---

# Interconnection Engineer at TransGrid Energy

- **Company:** TransGrid Energy
- **Location:** Irvine, CA
- **Compensation:** $110k–$145k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-10-06
- **Last confirmed live:** 2026-10-16
- **Apply:** https://jobs.ashbyhq.com/transgrid-energy/7638dbc0-0b42-476a-962d-9a908be47423

## Job description

## COMPANY OVERVIEW

TransGrid Energy is a renewable energy company focused on investing, developing, owning and operating utility-scale battery energy storage systems and PV projects. TransGrid has a robust pipeline of projects under construction and in late-stage development, and the Company is actively expanding its energy asset portfolio across the United States. As an affiliate company of Hanwha Group, a FORTUNE Global 500 company driven by a firm commitment to advancing the clean energy future, TransGrid Energy is striving to shape the renewable energy landscape by providing sustainable and reliable power solutions tailored to meet the energy needs of today and tomorrow.

## POSITION OVERVIEW

The Interconnection Engineer is a member of the Project Engineering organization responsible for the technical execution and coordination of grid interconnection activities for utility-scale Battery Energy Storage System (BESS), solar PV, hybrid renewable, and data center energy infrastructure projects. This role is critical to project feasibility and requires deep understanding of ISO/RTO processes, utility coordination, and grid integration for both generation and large load applications.

## RESPONSIBILITIES

- Serve as the Project Engineering technical lead for grid interconnection requirements on assigned projects.
- Translate Interconnection Agreement (IA), Generator Interconnection Agreement (GIA), utility, ISO/RTO, and transmission-owner requirements into project engineering requirements.Develop interconnection strategies across projects
- Manage interconnection applications, studies, and agreements
- Interface with utilities and ISOs/RTOs
- Track milestones, timelines, and upgrade costs
- Identify and mitigate interconnection risks
- Maintain interconnection positions through COD
- Track technical interconnection issues through resolution.
- Maintain traceability between study assumptions, equipment selection, final design, commissioning settings, and as-built configuration.

## REQUIRED QUALIFICATIONS

- Bachelor’s degree in engineering, or related field.
- 5+ years of interconnection or power systems experience
- Deep understanding of ISO/RTO processes and utility tariffs
- Experience with CAISO a plus
- Experience with:
- Large load interconnections (data centers)
- DER / BTM / hybrid systems applications
- Strong technical understanding of transmission and distribution systems
- Proven ability to manage utility and regulatory relationships
- Strong analytical and problem-solving skills, with the ability to work accurately under time pressure.
- Strong communication skills and the ability to present technical findings in a clear, concise business format.
- Ability to work effectively across commercial, operational, and financial teams.

## ATTRIBUTES FOR SUCCESS

- Highly analytical, detail-oriented, and intellectually curious.
- Able to connect technical analysis to practical commercial outcomes.
- Strong sense of ownership and accountability.
- Comfortable operating in a fast-paced, evolving environment.
- Able to balance rigor, speed, and business relevance.
- Interested in developing into a deeper commercial market and asset-optimization role over time.

## WORK AUTHORIZATION

Candidates must have authorization to work in the US prior to joining TransGrid Energy LLC. This role does not sponsor or offer assistance with work authorization in the United States.

## DIVERSITY AND INCLUSION

TransGrid Energy believes that diversity and inclusion are vital to our success. By embracing different ideas and approaches, we enhance our ability to deliver the best results for our employees, environment, and business partners. We foster a culture where all colleagues can share their passions and ideas to collectively overcome industry challenges and work toward a brighter future. TransGrid Energy is an Equal Opportunity / Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, age, or any other federally protected class.

## About TransGrid Energy

## Company Overview
- **One-liner**: TransGrid Energy develops, owns, and operates utility-scale Battery Energy Storage Systems (BESS) and photovoltaic (PV) projects to advance the transition to a more sustainable and resilient energy grid.
- **Entity Type**: Private (Subsidiary of Hanwha FutureProof, part of Hanwha Group)
- **Headquarters**: Irvine, California, United States
- **Founded**: Not publicly available
- **Founders**: Not publicly available

## Core Business
- **Primary industry/industries**: Renewable Energy Power Generation, Utility-Scale Energy Storage, Solar Energy
- **Target customers**: Utilities, grid operators, and large-scale energy consumers (B2B, Enterprise)
- **Mission or purpose statement**: To shape sustainable energy solutions for a more resilient grid by investing in and operating assets across the USA that drive the shift toward a more sustainable future.

## Products & Services
- **Utility-Scale Battery Energy Storage Systems (BESS)**: Development, ownership, and operation of large-scale battery storage projects (e.g., Atlas VIII at 279MW/1,116MWh) that provide grid stability, reliability, and clean energy integration.
- **Photovoltaic (PV) Solar Projects**: Development, ownership, and operation of utility-scale solar generation assets (e.g., Silver Peak at 100MW PV).
- **Hybrid BESS/PV Projects**: Combined solar and battery storage facilities that deliver reliable, dispatchable clean energy.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private subsidiary)
- **Key Metric**: Total Funding of **$975 million** (as of March 2025), including a $270M round and $705M in debt financing. Portfolio boasts over **8.6 GWh in BESS capacity** and **538 MW in PV capacity** across projects in advanced development or under construction.
- **Notable Investors/Partners**: Hanwha Group (parent company, a Fortune Global 500 leader), Hanwha FutureProof, Microsoft (partnering on edge data centers and BESS deployment), Prime Group Holdings.
- **Growth Signals**: Headcount grew **+125% year-over-year** (from ~15 to 34 employees). Closed a **$1.2 billion financing** for the Atlas VIII project in January 2026. Multiple projects under construction with target commercial operation dates in 2026 and 2027.

## Competitive Advantages
- **Hanwha Group Backing**: As an affiliate of a Fortune Global 500 diversified conglomerate, TransGrid Energy has unparalleled access to capital, industry expertise, and a global network for rapid scaling.
- **Long-Term Ownership Model**: Unlike many developers that flip projects, TransGrid Energy commits to long-term ownership, optimizing each asset for longevity and enduring value.
- **Focus on Late-Stage Development**: Acquires projects nearing Notice to Proceed (NTP), mitigating development risks and accelerating time to revenue.
- **Proven Execution**: A team with over a century of cumulative experience in energy sector innovation, now focused on the U.S. renewable energy transition.

## Strategic Focus
- **Rapid Portfolio Expansion**: Scaling a multi-GW pipeline of BESS and PV projects across the U.S., with a near-term focus on bringing projects under construction (like Atlas VII and Atlas VIII) to commercial operation.
- **Grid Resilience & Reliability**: Prioritizing projects that strengthen grid stability and support the integration of intermittent renewable sources.
- **Strategic Partnerships**: Collaborating with major tech companies (Microsoft) and financial institutions to deploy innovative energy infrastructure solutions, such as co-located edge data centers and battery storage.

## Why Work Here
- **High-Growth Environment**: The company is in a rapid growth phase (+125% YoY headcount), offering significant opportunities for career advancement and impact in a fast-moving industry.
- **Entrepreneurial Culture**: Described as having an "entrepreneurial culture" within a stable, global parent company, combining startup agility with large-company resources.
- **Mission-Driven Work**: Employees contribute directly to the clean energy transition, working on projects that have a tangible impact on grid sustainability and resilience.
- **Comprehensive Benefits**: Includes medical, dental, and vision insurance; basic life and disability coverage; generous paid holidays, vacation, and sick leave; and a **401(k) with company match** (full vesting of both contributions and match).
- **DEI Commitment**: Diversity, equity, and inclusion are stated core values, with initiatives to foster a respectful, collaborative, and innovative workplace.
- **Work Policy**: Roles are listed as a mix of On-Site, Hybrid, and Remote, offering flexibility depending on the position.

## Sources
1. [transgridenergy.com](https://transgridenergy.com/)
2. [transgridenergy.com/careers](https://transgridenergy.com/careers/)
3. [transgridenergy.com/about-us](https://transgridenergy.com/about-us/)
4. [transgridenergy.com/our-projects](https://transgridenergy.com/our-projects/)
5. [linkedin.com/company/transgridenergy](https://www.linkedin.com/company/transgridenergy)

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