ERCOT · Pricing

DAM energy purchased

Name: DAM energy purchased
Creator: Dryos

Cleared day-ahead purchase volumes per settlement point and hour — the quantity side of the DAM. Collected from ERCOT MIS (NP4-192).

ercot-dam-energy-boughtdaily, ~12:35 CT · 1h rows1,049 entities

HB_NORTH

16,179MWh

2026-09-19 04:00 UTC

HB_HOUSTON

6,063MWh

2026-09-19 04:00 UTC

LZ_WEST

1,399MWh

2026-09-19 04:00 UTC

Read from the Dryos API and cached for an hour; the stream itself updates daily, ~12:35 CT.

What is in it

Every value, its unit, and what the source means by it.

Exactly what a request answers with, read from the API rather than written here.

Column	Type	Description
interval_start_utcrequired	timestamp	Start of the interval, UTC. Always UTC — ERCOT publishes wall-clock Central with a repeated-hour flag, which is resolved on ingest.e.g. 2026-08-29T14:15:00Z
isorequired	string	Publishing ISO.e.g. ERCOT
noderequired	string	Settlement point identifier, as published by ERCOT.e.g. HB_HOUSTON
energy_mwhrequired	number	Total DAM energy bought at this settlement point in this hour, MWh.e.g. 120.5
source_published_at_utcrequired	timestamp	When ERCOT posted the document this row came from, UTC. For reports republished on a rolling window this is the vintage: the same interval appears once per publication, and the newest is the current view.e.g. 2026-08-29T14:17:01Z
collected_at_utcrequired	timestamp	When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-08-29T14:18:02Z

Public, read-only, no key and no sign-up. Relative times stay relative, so a URL keeps working.

The newest rows

shell

curl "https://api.dryos.ai/v1/datasets/ercot-dam-energy-bought/query?node=HB_NORTH&limit=12"

The catalogue entry — every column, its type and the source

shell

curl "https://api.dryos.ai/v1/datasets/ercot-dam-energy-bought"

Full parameters — bucketing, aggregation, filters and search — are on the API reference.

The same stream through the Model Context Protocol, so Claude, ChatGPT, Cursor or any MCP client can query it directly.

shell

claude mcp add --transport http dryos https://api.dryos.ai/mcp

Then ask:

What has Energy bought been at HB_NORTH over the last 24 hours, and when did it peak?

Setup for every client is on the MCP server page.

Pulled straight from ERCOT MIS · NP4-192-CD — no reseller in between — and compared against that file before it is served.
Null means the source did not report it — never zero.
A reading lands daily, ~12:35 CT; the interval timestamp is the start of the interval, in UTC.
ERCOT settles and publishes on US Central time. Every timestamp Dryos serves is UTC.