What Heimdall Power does

Heimdall Power is a privately held Norwegian grid technology company founded in 2016 and headquartered in Oslo, with a North American headquarters in Charlotte, North Carolina (via subsidiary Heimdall Power Inc., established 2023). The company builds a combined hardware-and-software platform for real-time Dynamic Line Rating (DLR), Ambient Adjusted Rating (AAR), and asset health monitoring on electric transmission and distribution infrastructure. Its core offering is the Neuron, a self-powered, maintenance-free, ~7.8 lb line-mounted sensor with built-in cellular and Iridium Certus 9704 satellite communications and on-board programmable intelligence, complemented by the Virtual Neuron, a software-only sensor used for instantaneous, low-cost AAR coverage, and the cloud-native Heimdall Platform, which fuses sensor data, advanced weather forecasting, continuous modeling, and machine learning into ratings, forecasts, and asset-health alerts. A patented autonomous drone installation system can mount, unmount, or rearrange a Neuron on a live, energized high-voltage line in approximately 10 seconds, eliminating the need for outages or bucket trucks and serving as both a deployment service and an operational moat.

Heimdall sells its solutions primarily to electric utilities, including transmission system operators (TSOs) and distribution system operators (DSOs) such as Statnett, National Grid, TenneT, Amprion, Swissgrid, EirGrid, NIE Networks, Bayernwerk, Westnetz, PGE Dystrybucja, Great River Energy, Entergy, Ameren, PG&E, Puget Sound Energy, Minnesota Power, Arva, and Tenaga Nasional Berhad, with stated deployments in 21+ countries across Europe, North America, and Asia. The product is positioned for FERC Order 881 AAR compliance, NERC FAC-008 facility ratings (via the new Heimdall Power Facilities Module launched March 2025), and broader grid-resilience use cases such as ice, wildfire, and wind monitoring through Heimdall HEALTH, with reported customer outcomes of 40%+ average capacity gains on existing lines and material deferred capex (e.g., $3.175M projected savings for Great River Energy, hundreds of millions of NOK saved by Arva).

The business model is enterprise-led, with quote-based pricing under long-cycle, multi-year framework agreements (e.g., a 5-year DLR framework with National Grid UK) that combine hardware sales of Neuron units, recurring software subscriptions on Heimdall Cloud, and project-based drone installation and integration services. Go-to-market combines direct field sales led by a Head of Sales and regional growth managers in the US and Germany, with channel and ecosystem support from industry events (IEEE PES T&D, DISTRIBUTECH), Microsoft Azure (cloud infrastructure), Iridium (satellite connectivity), EIC Scaling Club, and industry coalitions (WATT Coalition, CIGRE, GridForward, CURRENT). Funding to date totals a $25M Series B in July 2024 co-led by Orlen VC, NRP Zero, and the Steinsvik Family Office, with participation from Investinor, Eviny, Hafslund, Lyse, and Sarsia Seed.

Name

Heimdall Power

Legal name

Heimdall Power AS

Website

https://heimdallpower.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

51–100 employees

Short description

Heimdall Power is a Norwegian grid technology company that provides Neuron line sensors, Virtual Neuron software, and the Heimdall Cloud platform for Dynamic Line Rating, AAR, and asset health monitoring, sold to electric TSOs and DSOs in 21+ countries.

Ownership category

akta.pro rank

Product category

Grid Monitoring Technology

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Electric Bulk Power Transmission and Control (221121)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Line Monitoring & Sensors (DLR, conductor temperature/sag, fault passage, vibration/icing sensors) (EUADADAL)

akta.pro secondary industries

Power Quality, Line Monitoring & Grid Edge Sensors (PMUs/µPMUs) (EUADAPAO), Flexible AC Transmission—Dynamic Line Rating (DLR) & Grid-Enhancing Technologies (GETs) (EUADAMAK)

Keywords

• Dynamic line rating
• Transmission line monitoring
• Grid optimization software
• Power line sensors
• Asset health monitoring

Headquarters

HQ city

Oslo

HQ country

Norway

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Neuron hardware sales: Sale of physical Neuron sensor units (and earlier 'Magic Ball' branding) to utilities for installation on transmission lines. Per-unit hardware revenue driven by multi-year framework agreements and large-scale deployments.
2. Heimdall Cloud software / DLR & AAR subscriptions: Recurring software revenue from the Heimdall Cloud platform delivering DLR, AAR, asset health monitoring, weather forecasting, and analytics (Virtual Neuron included). Deployed as a subscription-style service alongside hardware.
3. Installation and professional services (drone deployment): Project-based revenue from on-site/in-field deployment of sensors, including the autonomous drone installation service for live lines and integration with utility control systems.
4. Asset Health Monitoring (HEIMDALL HEALTH) and Facilities Module: Recurring/upsell revenue from additional modules such as ice monitoring, fault detection and localization, wildfire/ice/wind detection, and NERC FAC-008 Facilities ratings.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels9 records

Core offering

Heimdall Power develops, manufactures, and sells a combined hardware-software platform for real-time monitoring and capacity optimization of high-voltage transmission lines. The offering pairs self-powered physical line-mounted Neuron sensors (and software-based Virtual Neuron sensors) with the cloud-native Heimdall Platform to deliver Dynamic Line Rating (DLR), Ambient Adjusted Rating (AAR), and asset health monitoring to electric utilities, with deployment enabled by a patented autonomous drone installation system.

Product overview

Heimdall Power offers a unified digital grid platform combining a physical hardware sensor (the Neuron, also known as the "Magic Ball" or "Smart Sphere") with a software-based virtual sensor (Virtual Neuron), all running on the cloud-native Heimdall Platform / Heimdall Cloud. Together these form a sensor-plus-software architecture that delivers the flagship Heimdall DLR (Dynamic Line Rating) service, with add-on modules such as Heimdall HEALTH for asset health/ice monitoring and the Heimdall Power Facilities Module for substation/FAC-008 compliance. Deployment is enabled by the company's patented Autonomous Drone Installation System, which can install or rearrange Neurons on live, energized power lines in as little as 10 seconds per sensor.

Differentiator

Problem solved

Functional benefit

Brands

• Neuron: Flagship self-powered physical line sensor product (also nicknamed 'Magic Balls'), used to deliver real-time Dynamic Line Rating data from high-voltage transmission lines.
• Virtual Neuron
• Heimdall Cloud
• Heimdall Platform
• Heimdall HEALTH
• Heimdall Facilities Module

Products and services

• Neuron A self-powered, maintenance-free, 7.8 lb sphere-shaped physical sensor (also called the 'Magic Ball' or 'Smart Sphere') that mounts on high-voltage transmission lines to provide real-time monitoring of conductor temperature, line angle, ambient temperature, and other parameters. Includes built-in cellular and satellite communications plus on-board programmable intelligence. Sold to electric transmission and distribution utilities.
• Virtual Neuron A software-based sensor providing instantaneous deployment, high configurability, and low-cost scalability. Fetches high-quality weather data hourly to calculate Ambient Adjusted Rating (AAR) for every relevant line segment. Used to amplify physical hardware investments and meet FERC Order 881 compliance. Sold as part of the Heimdall software subscription to electric utilities.
• Heimdall Platform (Heimdall Cloud) A seamlessly integrated, cybersecure (ISO 27001) cloud platform that provides advanced weather forecasting, continuous modeling and machine learning, AAR/DLR calculation, 10-day forecasting, real-time ratings, asset health monitoring, and grid operations. Built on Microsoft Azure. Delivered as a subscription to electric utilities.
• Heimdall HEALTH Asset health monitoring solution that enables precise monitoring of overhead line conditions such as ice build-up, smoke, heat, and wind before damage occurs, as well as fault detection and localization. Sold to electric utilities as an add-on to the Heimdall platform.
• Heimdall Power Facilities Module Extension of the Heimdall grid optimization engine to facilities and elements inside and outside the substation, providing a single platform to manage ratings across the grid and streamline NERC FAC-008 facility-ratings compliance. Sold to electric utilities as an add-on module.
• Autonomous Drone Installation System Patented autonomous drone system for installing, uninstalling, and rearranging Neuron sensors on live (energized) high-voltage power lines in as little as 10 seconds per sensor, enabling safe, outage-free deployment in remote and hard-to-reach areas. Deployed as a service to utilities alongside hardware sales.
• Heimdall DLR (Dynamic Line Rating) Heimdall's flagship DLR service that uses Neuron and Virtual Neuron sensor data combined with CIGRE-based methods to provide real-time, accurate assessment of transmission line capacity. Delivers an average 40%+ capacity increase on existing high-voltage lines and supports FERC Order 881 compliance. Delivered as a subscription service to electric utilities.

Quantifiable outcome

• 40%+ average transmission capacity gains with DLR across deployments
• +7 more outcomes

Named customers32 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability5 records

Feature7 records

Partnerships

14 partnerships are on record, tiered core, flagship and minor.

• Iridium CommunicationscoreTechnology or IntegrationHeimdall Power announced a partnership with Iridium Communications to integrate Iridium's Certus 9704 satellite module into its Neuron sensors. This enables reliable, real-time data delivery from any location, including remote grid areas without cellular coverage. The partnership was announced on March 12, 2025 and is critical to Heimdall's ability to monitor lines anywhere in the world.
• PG&E (Pacific Gas and Electric Company)flagshipStrategic or Co-development PartnerHeimdall Power is one of the technology providers in PG&E's Dynamic Line Rating (DLR) and Asset Health Monitoring (AHM) demonstration project. Other partners include Prisma Photonics, Sentrisense, and Smart Wires, with EPRI serving as the independent technical advisor. The 18-month field demonstration is funded through PG&E's electric R&D budget under California's EPIC program.
• EPRI (Electric Power Research Institute)coreStrategic or Co-development PartnerEPRI serves as the independent technical advisor and evaluator of PG&E's DLR/AHM demonstration that includes Heimdall Power's Neuron technology. The 18-month independent evaluation covers multiple technology partners' deployments.
• National Grid (UK)flagshipStrategic or Co-development PartnerNational Grid plc announced a 5-year DLR rollout across 585 km of transmission lines in England and Wales (North East 345 km, Humber/East Anglia 240 km), in partnership with LineVision, Ampacimon, and Heimdall Power. The initiative could reduce consumer costs by up to £50 million and forms part of National Grid's £60 billion infrastructure program to double transmission capacity by 2029.
• EntergyflagshipStrategic or Co-development PartnerHeimdall Power and Entergy completed a multi-state Dynamic Line Rating deployment across Louisiana, Texas, and Arkansas in January 2026, installing 31 Neurons by drone in five working days. Entergy plans to use the data to inform future planning, operations, and grid modernization efforts across its service territory serving 3 million customers.
• Microsoft (Azure)coreTechnology or IntegrationHeimdall Power's cloud-based software is powered by Microsoft Azure services. Featured on Microsoft Pulse (June 12, 2024) highlighting how drones, sensors, and AI built on Azure can boost power grid efficiency by up to 40%.
• European Innovation Council (EIC) Scaling ClubcoreStrategic or Co-development PartnerHeimdall Power was selected in April 2024 as one of the first 48 members of the EIC Scaling Club, a pan-European initiative for deep tech scale-ups. Heimdall is in the 'Renewable Energies' cluster of 12 scale-ups, working with EU stakeholders on grid adaptation for mass electrification.
• WATT CoalitionminorGTM or Marketing PartnerHeimdall Power is a member of the WATT Coalition, an industry group that Heimdall references for input on regulatory matters such as the DOE SPARK funding concept paper stage.
• CIGREminorGTM or Marketing PartnerHeimdall Power is a member of CIGRE (International Council on Large Electric Systems), the global community for power system expertise, and bases its DLR on CIGRE-formulated methods.
• GridForwardminorGTM or Marketing PartnerHeimdall Power is a member of GridForward, a U.S. industry organization promoting smart grid technologies.
• CURRENT (previously Powered by ORNL)minorGTM or Marketing PartnerHeimdall Power is a member of CURRENT Europe, an industry initiative for distribution grid modernization.
• MaksGrid research consortiumcoreStrategic or Co-development PartnerHeimdall Power is a partner in the Norwegian MaksGrid research project (awarded 26 million NOK in August 2024), which brings together five grid companies and research/technology partners to strengthen capacity utilization and flexibility in the power system.
• LineVisionminorStrategic or Co-development PartnerLineVision is one of the DLR technology partners (alongside Heimdall Power and Ampacimon) in National Grid UK's 5-year DLR framework covering 585 km of transmission lines.
• AmpacimonminorStrategic or Co-development PartnerAmpacimon is one of the DLR technology partners (alongside Heimdall Power and LineVision) in National Grid UK's 5-year DLR framework covering 585 km of transmission lines.

Scale indicators13 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• LineVision: U.S.-based provider of Dynamic Line Rating and asset health monitoring sensors for transmission lines. Co-selected with Heimdall Power for the National Grid UK 5-year DLR framework and competing in PG&E's DLR/AHM demonstration; directly comparable in product offering, target utilities, and go-to-market.
• Ampacimon: Belgian provider of real-time Dynamic Line Rating and dynamic asset rating solutions for transmission and distribution operators. Direct competitor selected alongside Heimdall Power for the National Grid UK DLR framework; comparable in sensor-based DLR technology and European utility customer base.
• Smart Wires: U.S.-based grid technology company offering power flow control solutions to increase transmission line capacity. Direct competitor selected alongside Heimdall Power in PG&E's DLR and Asset Health Monitoring demonstration; addresses the same 'unlock capacity on existing lines' problem for utilities.
• Sentrisense: Provider of overhead line monitoring sensors with Dynamic Line Rating and asset monitoring capabilities for electric utilities. Selected as a co-vendor alongside Heimdall Power in PG&E's DLR demonstration; comparable sensor-based DLR technology serving similar utility customers.
• Prisma Photonics: Israel-based provider of fiber-optic based Dynamic Line Rating and grid monitoring solutions for transmission operators. Co-vendor with Heimdall Power in PG&E's DLR/AHM demonstration; competing for the same utility buyers with a different underlying sensing technology.

Emerging players

• Reactive Technologies: UK-based grid technology company focused on real-time inertia measurement and grid flexibility services. Brian Berry, Heimdall's CPO, previously worked at Reactive Technologies; overlapping focus on grid measurement intelligence for transmission system operators.

Broad incumbents

• L3Harris Technologies (Luna Innovations): Through its OptaSense division, L3Harris/Luna provides Distributed Acoustic Sensing (DAS) for power line monitoring and Dynamic Line Rating. A broader incumbent in transmission line monitoring with significant resources and global utility relationships, offering overlapping but technologically distinct DLR solutions.
• GE Vernova: Large grid equipment and software vendor offering grid management, energy management systems, and increasingly digital grid solutions to utilities globally. A broad incumbent that competes for utility capex with packaged grid modernization offerings that may include DLR as a feature.
• Siemens Smart Infrastructure: Major industrial vendor with a broad portfolio of grid management software, SCADA, and grid analytics for utilities. Competes indirectly with Heimdall by offering comprehensive grid optimization suites that include DLR-adjacent capabilities as part of larger deals.
• ABB (Hitachi Energy): Global grid technology leader offering transformers, HVDC, grid automation, and energy management software to utilities worldwide. Competes for utility capex with packaged grid solutions and digital substation offerings; could bundle or compete against dedicated DLR vendors like Heimdall Power.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights8 records

Customer concentration

• YouTubeyoutu.be/Otb3yN-5qnI
• LinkedInlinkedin.com/company/heimdall-power

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles20 records

Subsidiaries1 record

Funding overview

Funding rounds5 records

Investors13 records

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 Heimdall Power