Willow Ridge

ADMS vs DERMS vs GIS: Who Owns What in a High-DER Grid?

ADMS vs DERMS vs GIS: Who Owns What in a High-DER Grid? The alphabet soup problem In a high-DER grid, ADMS, DERMS, and GIS are all sometimes marketed as the system that will finally make the distribution network “smart.” That framing creates confusion, because these platforms are not interchangeable brains so much as distinct systems with different responsibilities, different time horizons, and different sources of truth. The more useful question is not which platform is the brain, but which system owns which data, which operational decisions, and which model of the network. Once that boundary is clear, the architecture gets simpler, the integrations get cleaner, and governance becomes much easier to sustain. ...

May 26, 2026 · 7 min · 1458 words · Joe Marsh