MISO Fuel on the Margin
MISO's five-minute identification of the fuel types on the dispatch margin by region, with peak or off-peak status and unit count.
About this data
Each row names a fuel type found on the dispatch margin in one MISO region in a five-minute interval, with whether it is peak or off-peak and how many units are involved. A marginal fuel identifies the price-setting technology category. It does not describe all the generation running in the interval.
What people use it for
- See which fuel sets the margin in MISO
- Relate marginal fuel to price levels
- Compare marginal fuels across regions and hours
Where to use it
In Ask the Grid
Ask about it, see it live
In ATG Data
Build with the full table
Latest data
Questions
- Which data provider has MISO Fuel on the Margin data?
- Ask the Grid has it, from MISO Data Exchange. You can browse every row in Ask the Grid Data, query it with SQL or the Ask the Grid API, reach it from an AI assistant over MCP, or ask the grid agent about it in plain English.
- Where does MISO Fuel on the Margin come from?
- It comes from MISO Data Exchange. This page links to the original publication, so any value can be checked against it.
- How do I download or query MISO Fuel on the Margin?
- Open the miso.generation_fuel_on_the_margin table in Ask the Grid Data to browse every row and run SQL against it, call it from code through the Ask the Grid API, or connect an MCP client. Full history can be delivered on a schedule to Snowflake, Databricks or your own storage.
- Can I ask questions about MISO Fuel on the Margin in plain English?
- Yes. The grid agent reads this data when a question needs it, for example "what fuel is on the margin in miso right now", and every answer names the dataset it read.