Interconnection Queue Maps

A spreadsheet is the wrong shape for this question

Every ISO publishes its interconnection queue, and every one of them publishes it as a table. That is fine for counting megawatts and useless for the question a developer actually has, which is geographic: what is queued near the site I am looking at, and at the substation I would connect to?

Sungarden syncs all seven queues and puts them on a map. The entries are placed against substations and points of interconnection, so you can see committed megawatts in the area before you spend anything on a site.

The part nobody publishes: what changed

A queue download tells you today's state. It does not tell you that the 300 MW project ahead of you pushed its in-service date out two years, or that the one next to it quietly withdrew last month. Those are the events that move your position and your cost, and they are invisible unless somebody is keeping the previous values.

We re-pull every queue on a fifteen-minute cycle and retain each snapshot. When a project's status changes or its dates move, the prior value is kept alongside the new one — and you can be alerted rather than discovering it at study time.

Markets we track

• NYISONew York StateSynced every 15 min · Parcel ownership · Hosting capacity
• PJMAll or part of 13 states from Illinois to New Jersey, plus the District of ColumbiaSynced every 15 min
• MISO15 states from the Dakotas and Minnesota south to Louisiana, plus ManitobaSynced every 15 min · Parcel ownership
• CAISOMost of CaliforniaSynced every 15 min
• ERCOTRoughly 90% of Texas load, on an electrically islanded gridSynced every 15 min
• ISO-NEConnecticut, Maine, Massachusetts, New Hampshire, Rhode Island and VermontSynced every 15 min
• SPP14 states across the central US, from the Dakotas to TexasSynced every 15 min

Where queue data meets land data

Queue coverage is national. Parcel ownership and utility hosting capacity are not — today those are New York and, for parcels, Minnesota. So in NYISO territory you can go from a queue entry to the feeder to the name on the deed without leaving the map, and in most other markets you get the queue intelligence without the land layer underneath it.

We would rather say that plainly than imply coverage we don't have. If you develop somewhere the land layer matters and we don't have it, tell us where — that is genuinely how we decide what to buy next. New York developers should start from the hosting capacity maps.

Frequently asked questions