From Planning to Power

Grid interconnection and power systems engineering experts providing electrical design, modeling, compliance, and software solutions for utilities, developers, energy storage, and large load projects.

POWERING CLEAN ENERGY

Where Expertise Meets Ambition

At ZEG, we understand the challenges interconnection developers and investors face—navigating a complex, backlogged queue, managing regulatory uncertainty, and mitigating grid congestion risks that can derail timelines and drive-up costs.

Our team of transmission interconnection experts is dedicated to cutting through these barriers, providing solutions needed to accelerate clean energy projects.

GW Map 2026 (2)

70k

Megawatts

ISOs have contracted over 70,000 MW to streamline interconnection workflows.

350+

Projects

Analyzed over 350 generation and storage projects through advanced modeling.

80%

Coverage

Our expertise spans 9 major ISOs and RTOs—covering over 80% of the U.S. power grid.

Live Demo: REST® for Grid Interconnection & Site Selection Analysis

Join us for a free live demo of REST® 2.0, Zero-Emission Grid’s (ZEG) platform for scouting sites for generation and large load projects – all within a single workflow.

Wednesday | June 10th | 12:00 PM CST

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CONSULTING SERVICES

Our services cover all phases of interconnection, from site selection to due diligence.

Our commitment is unwavering – we strive to be the absolute best in delivering our core services and products.

HOW REST® WORKS:

REST®: Prospect smarter. Move faster.

For developers looking to analyze a large region and determine where to build their next project. With curated grid layers, POI prospecting, exports, and a flexible dashboard, REST® allows you to track queue projects and upgrades with routine refreshes, using on-demand network models and ISO/RTO-specific methods.

REST- Grid Interconnection Analysis Tool for POI and other Insights
Grid due diligence, multi-scenario analyses, and interconnection modeling tool Sitra
HOW SITRA™ WORKS:

Sitra™ for ERCOT: Rapid, Transparent Grid Analysis Rapid, Transparent Grid Analysis.

For developers, investors, and buyers analyzing pre-selected sites across the ERCOT Market for feasibility and risk. Assess interconnection risk fast. ISO/RTO-specific methods, unlimited scenarios, and pay-as-you-click.

FAQ's