ISO New England market participants with solar plants are now able to submit medium and long-term future availability data for power generation. This functionality was formerly only available to wind plant assets.
The new requirements and rules were outlined by ISO-NE:
The new functionality to submit future availability data is available via web services only. There is no user interface similar to eMarket. Access to Renewable Plan web services may be obtained via CAMS.
The solar generation future availability data is submitted in form of two schedules: Hourly Solar Plant Future Availability data (Hourly SPFA) and Daily Solar Plant Future Availability data (Daily SPFA). Participants can use web services to query the names of schedules, as well as information about the solar assets they own. For details on XML submit and query requests, refer to “Wind and Solar Data Exchange Specification” published on ISO-NE website.
The Hourly SPFA data is submitted every hour and contains date-time/MW value pairs for the hours starting with the next hour, and ending with 48 hours from the next hour (48 data points).
The Daily SPFA data is submitted once a day, no later than at 10:00. This schedule contains date-time/MW value pairs for the hours starting at 11:00 two days from the current day and ending with 7 days from the current day (120 data points).
The verification process uses the Nameplate MW value specified in CAMS. Submittals with values higher than Nameplate MW will be rejected. The system will also verify the number of data points and begin/end dates in submitted requests. For invalid submittals, the system will return an error message explaining the problem. For valid submittals, the system will return a transaction ID.
Adapt2 is working with clients to ensure they are able to submit their future availability to ISO New England.