Privacy Policy
Last updated: October 6, 2026
Substation Capacity operates substationcapacity.com and the tools hosted on it. This policy explains what data we collect and why. Questions can be sent to [email protected].
What we collect
If you use the map or batch screening tools:
- The address, coordinates, or CSV of site locations you enter, so we can return capacity data for those locations.
- If you upload a CSV for batch screening, we send the addresses in it to Geocodio, a third-party geocoding service, in a single batch request to convert them to coordinates. We do not keep your uploaded CSV file after processing. We do save each successfully geocoded address (the address text, its coordinates, match details and a timestamp) in a cache in our database so repeat lookups are faster. Cache entries are not linked to an account and are not automatically deleted. You can email us to have your addresses removed.
- If you use the address search on the map, the text you type is sent directly from your browser to Nominatim, the search service run by OpenStreetMap, which sees your IP address and your query under its own privacy policy. We do not receive or store these searches.
- Basic request metadata, including timestamp, endpoint called, and rough usage count, so we can enforce rate limits on the public demo key and keep the service running.
If you create an account or use Watch/Alerts:
- Your email address, so we can send alerts when a substation you are watching changes.
- The substations or circuits you have chosen to watch and your alert threshold.
If you use the public demo key:
- We track request counts against the demo key, which are not tied to your identity beyond an IP address or session, to enforce the demo rate limit. Watch/Alerts and some other features are disabled for demo-key traffic.
We do not:
- Sell your data.
- Share your watched-substation list or CSV contents with anyone other than the service providers listed below.
- Use your data for advertising or profiling.
Third parties we rely on
| Service | Purpose |
|---|---|
| Geocodio | Converts addresses to coordinates for batch screening |
| OpenStreetMap (Nominatim) | Address search on the map |
| Render | Hosts our API |
| Neon | Hosts our database |
| Backblaze B2 | Stores raw utility data snapshots |
| Netlify | Hosts this website |
Each service has its own privacy practices. We send only the minimum data needed for the service to do its job. For example, Geocodio sees addresses, not who you are.
Accuracy disclaimer
The underlying capacity data comes from public ArcGIS feeds published by electric utilities. We normalize and store it, but we do not control its accuracy, and some sources are known to be stale or lower-confidence. This is disclosed in the tool through data quality tiers. This is a data screening aid, not a substitute for direct utility confirmation before making a siting or investment decision.
Data retention
- Historical capacity snapshots are retained indefinitely because trend detection depends on history.
- Batch CSV files are not retained after processing. Geocoded address results are kept in a cache until removed on request (see above). Geocodio keeps technical logs of API requests, such as IP address and response status, for 45 days under its own retention policy; it does not store the text of batch requests.
- Account data, including email and watch list, is retained until you ask us to delete it.
Your rights
You can ask us to delete your account, email, and watch list at any time by emailing [email protected]. We will confirm deletion within a reasonable time. You can also ask us to remove specific addresses from the geocoding cache.
Changes
If this policy changes materially, we will update the date at the top. Significant changes will be noted here for at least 30 days.