The Radio Link and the Soul: What Forty-Seven Years in Rural Infrastructure Have Taught Me About Work, Technology, Life, and Faith
Old radios still hum out on back roads, holding systems together just enough. We fix what we can, carry more than we should, and learn the hard way—we were never meant to hold it all alone.
OT CYBERSECURITY: What 2019 Engineering Practice Tells Us About 2026 Threats
The question for every OT operator reading this report is whether their current architecture gives them a fighting chance to detect lateral movement before it reaches the consequence-critical pathways, and to recover with confidence when it does. If the answer is uncertain, the path forward is to start with consequence mapping and build from there.
From Signals to Systems: Engineering as Stewardship
A specification tells you what a component should do under controlled conditions. It doesn’t tell you what happens when that component is asked to operate for twenty years in a substation control panel with inadequate ventilation, marginal grounding, and legacy protocols it was never designed to handle.
Technology Services That Fix Today’s Problems — and Design Tomorrow’s Systems
John Hargrove Consulting LLC and Evergreen Technology Solutions work together to help organizations stabilize critical technology now and intentionally design what comes next.Our focus is practical, field-tested technology for businesses, utilities, public entities, and rural communities that cannot afford guesswork or downtime. We Fix Technology That Is Not Working When systems are unreliable, insecure, or […]
The Packets Per Second Problem Nobody Saw Coming
Your Aprisa radio is rated at 83 Kbps. Your OT traffic requirements are 40 Kbps. So you’re good, right?
The Grid Is Under Siege: Why OT and WAN Security Can’t Wait
By John E Hargrove PE The modern grid is no longer a fortress. With substations, transmission systems, SCADA, and power plants tied into wide-area networks and cloud platforms, the walls that once kept operations safe have crumbled. What we’ve gained in efficiency and visibility, we’ve lost in isolation. That shift has made critical infrastructure an […]