Power Utilities
Protect critical substation equipment, transformers, controls, and electrical infrastructure.
PulseBlock EMP Protection HEMP/IEMI Filter
Protecting Critical Infrastructure From Electromagnetic Disruption
PulseBlock is an advanced power-line protection system designed to reduce damaging electromagnetic currents before they reach critical electrical equipment.
95%*
Per-Phase Reduction in Tested E1-Related Current
≥88%*
Common-Mode Reduction in Tested E1-Related Current
480 V – 13.8 kV
Candidate Voltage Classes Independently Tested
*Results are from independent 2023 pulse-current-injection testing of candidate filter configurations. See Technical Validation for test conditions.
Company Overview
A Critical Layer of Infrastructure Protection
Modern power systems depend on sensitive transformers, controls, communications, and electronic equipment. A severe electromagnetic event introduces destructive currents through the electrical network and threaten essential operations.
Ascentis Global has developed PulseBlock to add a powerful layer of protection at critical electrical entry points. Candidate configurations have been independently tested for 480 VAC, 4.16 kVAC, and 13.8 kVAC applications.
480 VAC
Commercial and critical facilities
4.16 kVAC
Medium-voltage infrastructure, Substation protection
13.8 kVAC
Power utility and industrial applications
Custom Solutions
Tailored configurations engineered to meet each customer's unique protection requirements
The Threat
The Systems We Depend On Are Electrically Vulnerable
Electromagnetic Events
Electromagnetic threats can originate from multiple sources, including high-altitude nuclear detonations, severe geomagnetic storms, lightning strikes, and intentional high-power electromagnetic attacks.
Variable Infrastructure
Utilities, data centers, communications networks, transportation systems, and government facilities increasingly depend on sensitive electronic controls.
Operational Consequences
Damage to substations, data centers, controls, transformers, power supplies, and communications equipment can interrupt essential services and create costly recovery requirements.
Introducing PulseBlock
A Purpose-Built Barrier Between the Threat and the Asset
PulseBlock is engineered for installation at strategic electrical entry points. During a fast electromagnetic transient, its filter architecture attenuates and normalizes the current transmitted toward protected downstream equipment.
It is designed as part of a coordinated resilience strategy that may also include grounding, shielding, surge protection, communications protection, and facility-level engineering.
“Keep the lights on and data flowing no matter what.”
Independently Tested
480 VAC • 4.16 kVAC • 13.8 kVAC Candidate Configurations
How It Works
How PulseBlock Protects Your Systems
01
Installed at the Electrical Entry Point
PulseBlock is integrated into the protected power path based on the facility's voltage class and electrical configuration.
02
Attenuates and Normalizes Incoming Transient Current
During a fast electromagnetic event, the filter attenuates and normalizes the current that continues toward protected equipment.
03
Supports Continued Resilience
PulseBlock adds another layer of defense for substations, data centers, transformers, controls, servers, communications equipment, and other critical systems.
Independently Tested
Performance Supported by Third-Party Testing
Scientific Applications and Research Associates, Inc. independently tested four Ascentis candidate filter configurations using pulse-current-injection equipment and methodologies derived from MIL-STD-188-125-1 Appendix B.
The candidates exceeded the test program's established E1 performance criterion.
95%
Per-phase E1-related current reduction at the 2,500 A test level
≥88%
Common-mode E1-related current reduction at the 5,000 A test level
4 Configurations
Tested across 480 VAC, 4.16 kVAC, and 13.8 kVAC candidates
Product Benefits
Why Engineering and Operations Teams Choose PulseBlock
01
Independent Performance Data
Candidate configurations have undergone third-party pulse-current-injection testing.
02
Multiple Voltage Classes
Tested candidates cover 480 VAC, 4.16 kVAC, and 13.8 kVAC applications.
03
Critical-Asset Protection
Designed to attenuate and normalize damaging currents traveling toward sensitive downstream equipment.
04
Application-Specific Engineering
Configurations are developed around the facility voltage, grounding method, load, and protection architecture.
05
Infrastructure Integration
Designed for deployment within power utility, commercial, industrial, data-center, and government electrical systems.
06
Passive Protection Architecture
Designed to provide protection without depending on external power, software commands or operator reaction during the event.
Applications
Where PulseBlock Strengthens Resilience
Data Centers
Add resilience at key power-entry points serving computing, storage, cooling, and backup systems.
Telecommunications
Support the continuity of network, switching, tower, and communications infrastructure.
Defense and Government
Harden electrical systems supporting naval/military bases, operations, and emergency response.
Energy and Industry
Protect generation, storage, manufacturing, and process-control equipment.
Transportation
Support resilience for airports, rail systems, traffic infrastructure, and operational control centers.
Why Ascentis
Designed for Threats Conventional Protection Does Not Address
Conventional surge-protection systems are important, but severe electromagnetic threats require specialized filtering, installation engineering, and facility-level coordination.
Ascentis combines purpose-built filter technology, independent testing, and application-specific engineering to address the protection requirements of critical electrical systems.
Purpose-Built Technology
Developed specifically for electromagnetic resilience applications.
Independent Test Evidence
Performance results documented through third-party pulse-current-injection (PCI) testing.
Scalable Applications
Candidate configurations tested across low-, medium- and high-voltage classes.
Engineering Collaboration
Deployment developed in coordination with facility owners, engineers, integrators, and protection specialists.
Strategic Context
Infrastructure Resilience Is a Strategic Priority
Power utilities, data centers, communications providers, government infrastructure, and industrial operators are investing in systems designed to withstand high-impact disruptions. PulseBlock protects electrical infrastructure around their most important assets.
National Security
Hardening the electrical foundations that essential government, defense, and emergency-response missions depend on.
Operational Continuity
Reducing the risk of disruption to the systems that keep utilities, networks, and facilities running.
Asset Protection
Defending high-value transformers, controls, and electronic equipment from damaging electromagnetic events.
Leadership
Leading Ascentis Global
Team
Joel Edds
Chief Executive Officer
Joel holds a Bachelor of Science in Defense and Strategic Studies with a concentration in Mechanical Engineering from the United States Military Academy at West Point. As CEO of Ascentis Global, he has driven company growth and built a patent portfolio that includes the acquisition of four patents. He brings extensive experience from his military career — serving as an Operations Officer for a 700-member aviation organization, and as an Aeromedical Evacuation Officer leading 40 MEDEVAC missions, earning the Sikorsky Rescue Award.
Michael J. O'Donnell
President
Mr. O'Donnell has over 30 years of experience as an entrepreneur, business owner, turnaround practitioner and investment banker. He has founded companies in technical consulting, healthcare turnaround management, manufacturing, transportation and services. He holds a BA in Business and Economics.
Board of Directors
Jon Gunderson
Board of Directors
Jon Gunderson brings more than three decades of entrepreneurial leadership, operational expertise, and business-building experience to Ascentis Global. Since 1988, he has served as President of Outdoor Media Group, helping grow the company into one of the largest outdoor advertising enterprises in the Western United States. Following a strategic divestiture in 2004, he successfully rebuilt the business, demonstrating the resilience and long-term vision that have defined his career. Since 2005, Jon has also built one of the world's premier Ferrari restoration businesses, earning an international reputation for precision, quality, and operational excellence. He has served as an investor and adviser to companies across a range of industries and holds a bachelor's degree from Brigham Young University.
Jon Efurd
Board of Directors
Jon Efurd is a mission-driven executive with more than 20 years of experience advancing electrification, energy security, and critical infrastructure development. He specializes in aligning capital, technology, and strategic partnerships with systems that strengthen resilience, operational readiness, and long-term energy security. With experience spanning financial markets and electrical distribution, Jon brings a disciplined, execution-focused approach to grid modernization, distributed energy, electric mobility, and infrastructure initiatives. His ability to connect financial strategy with real-world energy systems enables him to evaluate complex opportunities and advance projects from concept through execution. At Ascentis Global, he contributes strategic insight into commercialization, infrastructure markets, capital formation, and the growing demand for resilient energy systems.
Engage Our Team
Engineering Collaboration for Critical Sites
We work directly with power utilities, data centers, telecommunications, industrial, and government customers to scope PulseBlock applications around each site's voltage class, protected assets, and resilience objectives.
Contact
Strengthen the Resilience of Your Critical Systems
Speak with the Ascentis team about your facility, voltage class, protected assets, and resilience objectives. We can help determine whether a PulseBlock application should move into preliminary engineering review.
Headquarters
Dallas, TX
Texas C-Corporation
R&D / Testing Lab
Phoenix, AZ
Engineering & validation