Changed

Forecast run asset validation relaxed

GET /forecasts/forecasts/

The run_asset.max_import field now accepts 0 as a valid minimum value (previously required 1 or greater).

POST /forecasts/run-simulation/

The run_asset.max_import request parameter and response field now accept 0 as a valid minimum value (previously required 1 or greater).

Changed

Forecast simulation asset constraints

Maximum values increased for battery energy storage system (BESS) parameters in forecast simulations.

GET /forecasts/forecasts/

Modified response fields:

• results[].run_asset.duration (number) - Maximum increased from 8 to 12 hours
• results[].run_asset.rated_power (number) - Maximum increased from 500 to 1000 MW

POST /forecasts/run-simulation/

Modified request fields:

• run_asset.duration (number) - Maximum increased from 8 to 12 hours
• run_asset.rated_power (number) - Maximum increased from 500 to 1000 MW

Modified response fields:

• run_asset.duration (number) - Maximum increased from 8 to 12 hours
• run_asset.rated_power (number) - Maximum increased from 500 to 1000 MW

Added

GB forecasts list endpoint

GET /forecasts/gb-forecasts-list/

New endpoint for retrieving Great Britain forecast data.

Solar configuration fields

Forecast run assets now support custom solar profiles and location-based configuration.

New fields:

• custom_solar_profile (object) - Custom solar generation profile
• custom_solar_profile_id (uuid) - Reference to custom solar profile
• latitude (number) - Asset latitude coordinate
• longitude (number) - Asset longitude coordinate
• azimuth (number) - Solar panel azimuth angle
• tilt (number) - Solar panel tilt angle
• market_region (string) - Market region identifier

GB-specific field:

• cfd_strike_price (number) - Contract for Difference strike price (0-200)

Changed

Forecast asset validation constraints

Asset configuration limits updated across forecast endpoints.

POST /forecasts/run-simulation/ and GET /forecasts/forecasts/:

• max_cycles minimum reduced from 1.0 to 0.5
• duration maximum reduced from 10 to 8
• repowering validation constraints removed

ERCOT forecast revenue fields

Multiple revenue breakdown fields removed from ERCOT forecast responses.

GET /forecasts/ercot-forecasts-list/:

Removed fields:

• ancillary_services_revenue
• ancillary_services_revenue_per_mw
• avg_real_time_energy_price
• real_time_energy_revenue
• real_time_energy_revenue_per_mw
• total_revenue_per_mw

Type changes:

• avg_ancillary_services_price changed from number to string
• avg_cycles_per_day changed from number to string
• total_revenues changed from number to string

Applies to both annual_energy_only_focus_data, annual_energy_with_as_focus_data, monthly_energy_only_focus_data, and monthly_energy_with_as_focus_data arrays.

GB forecast revenue field types

Revenue and metric fields changed from number to string format.

GET /forecasts/forecasts/{id}/:

Type changes in annual/monthly ancillaries and merchant focus data:

• avg_cycles_per_day
• avg_wholesale_day_ahead_price
• balancing_mechanism_revenues
• balancing_reserve_revenues
• capacity_market_revenues
• duos_* fields (all DUOS-related revenues)
• frequency_response_revenues
• tnuos_revenues
• total_revenues
• total_revenues_battery_excl_duos
• total_revenues_solar_excl_duos
• wholesale_day_ahead_battery_revenues
• wholesale_day_ahead_solar_revenues
• wholesale_day_ahead_total_revenues
• wholesale_intraday_revenues
• capacity_mwh_battery in forecast metadata

Documentation removed: Contextual descriptions removed from co-located and non-co-located revenue fields. Fields remain functionally unchanged.

Documentation updates

400 Bad Request response removed from /forecasts/macro-scenarios/ endpoint documentation. Nullability markers and integer validation constraints cleaned up across forecast schemas.

Deprecated

ERCOT Real-Time ORDC endpoints

4 ERCOT Real-Time Market ORDC endpoints will not receive data updates after December 5, 2025, due to discontinuation at source.

Affected endpoints:

• GET /us/ercot/rtm/historical-ordc-15min
• GET /us/ercot/rtm/historical-ordc-5min
• GET /us/ercot/rtm/real-time-ordc-15min
• GET /us/ercot/rtm/real-time-ordc-price-adders-5min

These endpoints remain available for historical data access but will not be updated with new data after the discontinuation date.