# Splight

**Source:** https://geo.sig.ai/brands/splight  
**Vertical:** Climate Tech  
**Subcategory:** Grid Transmission Software  
**Tier:** Emerging  
**Website:** splight.com  
**Last Updated:** 2026-04-14

## Summary

Raised $28.1M total. ML-based Dynamic Congestion Management unlocks up to 100% more capacity on existing lines without new wires. US commercial expansion in 2026.

## Company Overview

Splight is a grid software company whose Machine Learning-based Dynamic Congestion Management system helps utilities squeeze significantly more clean energy through existing transmission infrastructure without building new power lines. The company raised $28.1 million in total funding and is executing its US commercial expansion in 2026, targeting utilities and grid operators facing severe interconnection backlogs from renewable energy projects.

The core insight is that transmission lines are rated conservatively based on worst-case thermal assumptions, but actual real-time temperature, wind speed, and load conditions usually allow much higher power flows. Splight's software continuously monitors these conditions and dynamically adjusts transmission ratings in real time — unlocking latent capacity on existing lines that static conservative ratings leave unused. Early deployments demonstrate up to 100% more capacity on existing infrastructure without laying new wire.

The US grid interconnection queue has grown to over 2,800 gigawatts of proposed projects waiting for grid connection — more than double the entire installed capacity of the US power grid. Grid congestion and interconnection delays are now the primary bottleneck to renewable energy deployment. Splight's software addresses this bottleneck at a fraction of the cost of new transmission construction, and complements the DOE's $1.9 billion SPARK program for physical transmission upgrades.

## Frequently Asked Questions

### What does Splight do?
ML-based Dynamic Congestion Management software for transmission grids — dynamically raises line ratings based on real-time temperature and wind conditions, unlocking up to 100% more capacity without new wires.

### How much has Splight raised?
$28.1M total raised. US commercial expansion executing in 2026 targeting utilities with renewable interconnection backlogs.

### Why do transmission lines have unused capacity?
Static ratings are conservatively set for worst-case conditions. Real-time conditions (temperature, wind, load) usually allow much higher power flows — Splight captures this latent capacity.

### What is the US grid interconnection problem?
2,800+ GW of renewable projects are stuck in the interconnection queue — more than double the entire US installed capacity. Splight's software addresses the congestion bottleneck without new construction.

### What does Splight's software do for electric grid transmission?
Splight provides a real-time digital twin and analytics platform for transmission grid operators, enabling utilities and ISOs to monitor, simulate, and optimize high-voltage transmission assets — increasing grid capacity utilization and reducing congestion without building new physical lines.

### What is dynamic line rating and how does Splight enable it?
Dynamic line rating (DLR) allows transmission lines to carry more power than their static thermal limits by accounting for real-time wind cooling and temperature conditions. Splight's software integrates weather data and line sensor data to calculate real-time capacity, unlocking 10-30% more throughput from existing infrastructure.

### Who are Splight's customers?
Splight serves transmission system operators (TSOs), regional transmission organizations (RTOs), and large utilities managing high-voltage infrastructure. The platform is particularly valuable in congested markets where new transmission construction faces permitting and cost barriers.

### How does Splight help integrate more renewable energy?
Renewable energy is often located far from load centers, requiring transmission capacity to deliver power. Splight's dynamic capacity optimization and congestion management tools maximize how much renewable generation can flow across existing lines — enabling more wind and solar to reach consumers without new line construction.

## Tags

energy, b2b

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*Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*