VoltGrid turns any Windows workstation into a complete, offline geospatial hub for transmission and distribution — ingest PLS-CADD structures & conductors, run transmission line analysis (NESC, NERC FAC-003, IEEE 738 / 516), overlay CAD substation drawings and BIM models, and survey corridors with drone & satellite imagery. True 3D / Z editing over GeoPackage, served to every GIS client across the LAN. No cloud. No ArcGIS license. No infrastructure. Pair optionally with GRID State for full operational workflows — asset management, work orders, and crew dispatch.
Engineers model lines in PLS-CADD. The GIS team runs ArcGIS. Vegetation crews carry tablets and drones. CAD lives in its own silo. Compliance evidence is scattered across folders. Bringing these together on a single map — and keeping it offline — has historically meant a six-figure enterprise stack and weeks of integration.
PLS-CADD + ArcGIS Enterprise + CAD + a vegetation analytics tool + an OMS — each license, each integration, each FTE.
Structure & conductor data moves between PLS-CADD, GIS, and CAD via flat-file exports — losing attributes, coordinate systems, and time at every hop.
NERC FAC-003 vegetation, NESC clearance, and IEEE 516 live-line work clearances are checked separately, in different tools — when they're checked at all.
Cloud sync is a non-starter for critical-infrastructure GIS, SCADA overlays, and incident-response data subject to NERC CIP.
Drone, satellite, and LiDAR captures pile up faster than they can be turned into findings and work orders.
When the network drops or an incident kicks off, field crews need a shared live map that works without the cloud.
A WPF desktop host with an in-process ASP.NET Core server: 30+ formats and six databases go in, open standards come out — OGC, Esri REST, I3S, STAC, vector tiles, streams. Nothing leaves your network.
Full technical architecture with request flows and data pathways in ARCHITECTURE.md
Built on an in-process ASP.NET Core server, the desktop hosts, serves, edits, analyzes, and shares geospatial data — fully offline if required.
Eight analyses anchored to NESC 2023, NERC FAC-003, IEEE 738-2012, IEEE 516-2021, CIGRE, and EPRI/IEEE 644 — sag, clearance, thermal, EMF, structure, vegetation, live-line, blowout. Findings, scenarios, KPI dashboard, compliance reports.
Deep-dive →Import PLS-CADD XML + KMZ exports as structures + conductors FeatureLayers. Round-trip back to GPKG, GeoJSON, FileGDB, or PostGIS without losing attributes.
See the round-trip →DWG / DXF / DGN substation drawings and one-lines, profile plans, and as-builts — georeferenced onto the map. IFC BIM models and 3D substation scans via SLPK / I3S.
CAD on the map →I3S SceneLayers from .slpk, 3D Tiles, LiDAR point clouds, COG imagery, SAR & radar exploitation, and drone FMV geo-locked to the terrain — for corridor and substation inspection.
See the stack →Vehicle & asset tracking (TAK, AIS, ADS-B, GNSS), OGC SensorThings / SOS, MQTT, Kafka, and Esri StreamServer emulation — for SCADA overlays, sensor networks, and field crews.
Live data →GeoPackage, GeoJSON, ESRI Geodatabase, Shapefile, KML, FlatGeobuf, COG — read, convert, edit with the native Editor widget, and serve to every GIS client across the LAN.
Full format list →Beyond the six pillars — search public imagery catalogs, map your existing databases, fly drone video geo-locked to the terrain, import CAD, stream live feeds straight into ArcGIS, and serve terrain & imagery to Cesium, Unreal, Unity, and Godot with no Cesium ion or ArcGIS Online dependency.
Search Element 84 & Planetary Computer from one box, and publish your own rasters and point clouds as a spec-conformant STAC API 1.0.0.
Search & publish →Postgres, MySQL, SQLite, SQL Server, BigQuery, Google Sheets — spatial tables auto-discovered and served as MVT, OGC Features, and FeatureServer.
Map your data →STANAG/MISB KLV playback with a live sensor footprint, DJI→STANAG conversion, and optional YOLO-E detection — RTSP/UDP/SRT supported.
Geo-locked video →DWG / DXF / DGN onto the map via control-point or source-EPSG georeferencing, served as GeoJSON, MBTiles-vector, or GeoPackage.
Import drawings →Subscribe to SensorThings, SOS, GTFS-rt, and Moving Features into DuckDB — then expose moving data as a native Esri WebSocket StreamLayer.
Live streaming →Air-gapped terrain & imagery for Cesium, ArcGIS Maps SDK for Unreal/Unity, and Godot — quantized-mesh, WMTS, TMS XML, and LERC. For mission-planning & simulation enclaves without Cesium ion or ArcGIS Online.
Engine integrations →The full feature hub — the six pillars plus everything above, with deep-dive pages and the promo deck.
All features →The newest releases turn the desktop into a full intelligence platform: tactical comms, radar and SAR exploitation, imagery intelligence, local AI, RF sensing, offline routing, GIS-server emulation — plus SharePoint lists as editable layers, commercial satellite tasking, LoD2.2 city reconstruction, and a plugin SDK.
TAK Server + air-gapped multicast, blue-force overlay, GeoChat, Mission Board kanban with AAR replay, geofencing, MIL-STD-2525.
Tactical picture →ASTERIX CAT-048 tracks with a live Track Table, CPA calculator, velocity vectors, and 7500/7600/7700 squawk alerting.
Track the picture →SAR amplitude viewing with speckle filtering, spectral indices, YOLO-E detection, GEOINT annotation, and RPC mensuration.
Exploit imagery →Gemma 3 / Phi-4 chatbot + NL→SQL, SAM2 segmentation, YOLO-E detection — all on your hardware, no cloud AI.
On-prem intelligence →ADS-B, RemoteID drones, AIS, APRS, scanner audio, and rtl_433 IoT — the RF spectrum fused onto one map.
Listen in →Air-gapped A* routing over your own road graph, multi-waypoint turn-by-turn, GPX/KML export, graph analysis.
Plan the route →Any SharePoint list as an editable map layer — Entra ID sign-in, five geometry shapes auto-detected, edits flow back via Graph.
Map the list →Search, task, and order from Planet, Sentinel Hub, Skywatch, and SkyFi — your accounts, your imagery, straight to the map.
Task the bird →LoD2.2 building reconstruction, splat training, forestry LiDAR — and a drop-in plugin platform to extend it all.
Rebuild & extend →The headline capability of this release: a real, end-to-end 3D (Z + M) editing pipeline over GeoPackage, wired into the running app and the ArcGIS Editor widget.
hasZ / hasM read from gpkg_geometry_columns.edit3d.gpkg (POINT Z, POLYGON Z) on first run.// Z-enabled feature, absolute height mode { "attributes": { "name": "Tower-A" }, "geometry": { "x": -74.006, "y": 40.712, "z": 1500.5 } } → stored as POINT Z · hasZ: true · z preserved exactly
Drop a file — or point at a database — and it's on the map and on the wire. One process, zero installs, ETag-cached, LAN-wide.
* Capability counts reflect the documented platform scope. ROI and TCO figures appear on the ROI page and are illustrative planning targets — verify before publishing.
From tactical operations to city planning — wherever secure, real-time, 3D geospatial intelligence matters.
Secure sharing within classified networks, TAK/CoT fusion, air-gapped situational awareness.
Live damage assessment, resource routing, real-time field-to-command data flow.
3D city models, shadow & solar studies, multi-department infrastructure coordination.
Underground utility modeling, 3D asset editing, network planning.
Mining, forestry, geology — sub-surface modeling and LiDAR point clouds.
Data sovereignty, inter-agency collaboration, citizen service delivery.
Civil & environmental design, building information modeling, change-order reduction.
Universities and research centers analyzing spatial data at scale.
“Network Data Sharing reduced our emergency response time by 45 minutes, potentially saving lives during critical incidents.”
— Emergency Management Director, Major Metropolitan Area
* Illustrative testimonial from internal planning docs — replace with verified customer quotes before publishing.
Run the installer, and in seconds your workstation is hosting, editing, and sharing 3D geospatial data — no cloud, no license server, no waiting.