PJM last week began offering new ways to download Locational Marginal Price data from the PJM website with the introduction of a “data miner” application.

PJM Vice President for Market Operations Stu Bresler said the application was developed in response to stakeholder requests for a more efficient ways to download large amounts of data.

The application allows querying and filtering by date range, pnodes and “topic,” with choices of xml of csv outputs. The data can be obtained through a user interface or scheduled for regular retrievals through a “rest-based” web service.

Four sets of data will initially be available, with others added later: DA LMP (daily LMP, energy prices); RT LMP (daily LMP, energy prices, Ancillary Services Optimizer); DA monthly aggregates (monthly LMP, monthly energy prices); RT monthly aggregates (monthly LMP, monthly energy prices, ASO).

Members will be able to continue using any code they developed to “scrape” the data previously.