Data Formats — VoltGrid

📦

GeoPackage (GPKG)

The native editing store for pole, conductor, and substation features — full Z + M support, OGC 12-128r12 blobs, served as an ESRI FeatureServer.

🌐

GeoJSON

RFC 7946 output alongside ESRI FeatureSet and spec-clean OGC WKB.

🏛️

ESRI Geodatabase

Reads mobile geodatabases (.geodatabase) and Mobile Map Packages (.mmpk) fully offline via the bundled stgeometry_sqlite.dll — the packages your field crews already carry.

🗺️

Shapefile & KML

The classics of utility data exchange — read, render, and convert without ceremony.

🔀

Tile Package Conversion

ESRI .tpkx (raster) and .vtpk (vector) → MBTiles / GeoPackage, parsing ESRI Compact Cache V2 natively.

☁️

Cloud-Native

PMTiles, FlatGeobuf, GeoParquet, and Cloud-Optimized GeoTIFF out of the box.

🗄️

Database Connectors New

Postgres/PostGIS, MySQL, SQLite, SQL Server, BigQuery, and Google Sheets — the databases your utility already runs, spatial tables auto-served as MVT, OGC Features, and FeatureServer. Details →

📐

CAD New

DWG, DXF, and DGN as-builts imported and georeferenced onto the map — served as GeoJSON, MBTiles-vector, or GeoPackage. Details →

💾

Cloud Storage

S3, Azure Blob, and Google Cloud Storage via rclone.

📊

Analytics DBs

DuckDB, SQLite/MBTiles, and SpatiaLite for fast spatial SQL over asset and inspection data.

⛰️

DEM & Terrain New

GeoTIFF/COG, DTED 0/1/2, SRTM .hgt, and ESRI FLT/ASC grids — resampled on demand and served as quantized-mesh, heightmap PNG, and LERC elevation. Details →

📋

SharePoint Lists New

Any SharePoint list — inspection trackers, work logs — materialized into DuckDB and served as an editable FeatureServer layer, with writes flowing back via Microsoft Graph. Details →

In-App Screenshots

Data formats & layers

VoltGrid desktop — vector footprint polygons over Navarra, Spain — Vector footprint polygons rendered over aerial imagery of Navarra, Spain

VoltGrid desktop — Cloud-Optimized GeoTIFF over desert terrain near the Nile — Cloud-Optimized GeoTIFF loaded directly over desert terrain along the Nile, Sudan

VoltGrid desktop — High-resolution urban Cloud-Optimized GeoTIFF over Lisbon — Urban high-resolution Cloud-Optimized GeoTIFF loaded directly over Lisbon, Portugal

VoltGrid desktop — I3S SLPK 3D scene layer rendered on map — I3S Scene Layer Package (.slpk) 3D building meshes rendered over the map canvas

VoltGrid desktop — Raster tile package (.tpkx) loaded offline — Raster tile package (.tpkx) loaded and rendered offline over the continental United States

VoltGrid desktop — Vector tile package (.vtpk) loaded offline — Vector tile package (.vtpk) rendered offline with custom styling and labels

VoltGrid desktop — Wayback historical imagery layer loaded onto the map — Historical Wayback imagery release added to the map as an active layer

VoltGrid desktop — Offline Tile Packager dialog with AOI captured on map — Offline Tile Packager dialog with an AOI captured from the map

The conversion engine

Break the format silos

Stop choosing tools based on which file the contractor, the consultant, or the county handed you. Convert between the major packaging formats at speed — and serve the result immediately, next to the operational records your utility keeps in GRID State.

ESRI .tpkx → MBTiles in ~160ms for ~417 tiles.
ESRI .vtpk → MBTiles-vector / GeoPackage.
GeoTIFF → streamed as COG with no conversion.
ESRI ST_Geometry → clean GeoJSON / WKB / FeatureSet.

Read the docs

format conversion

// one desktop, every format
.tpkx  → MBTiles       ~160ms
.vtpk  → GeoPackage    vector
.geodb → GeoJSON       offline
GeoTIFF→ COG stream    no copy
LAS/LAZ→ I3S SLPK      LEPCC

Whatever format your grid data is in, it's on your map

3D GPKG Editor →See the ROI

Every utility data format. One app.