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Model updated

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8th August 2023

Summary

The retraining process resulted in two new models, one for PD and one for 7day price forecast. After considerable experimentation we retrained the price forecasting models with a considerable increase in accuracy (see validation results table below comparing the previous models with the new models).

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Predispatch model

p7day model

Model_id

20230729_213406_CB_2

20230213_012319_CB_7D_1

Previous model release date

20th April 2023

20th April 2023

Latest release date (after retraining)

1st 8th August 20231st

8th August 2023

Machine Learning Algorithm

Ensemble predictor: gradient boosting

Ensemble predictor: gradient boosting

Training Period

1st October 2020 to 20th July 2023

1st October 2020 to 20th July 2023

Hyper-parameter type

A

A

Hyper-parameter notes

No weighting across time periods

No weighting across time periods

Target

Dispatchprice (30min resolution)

Dispatchprice (30min resolution)

Input (and training) variables

PREDISPATCHPRICE

rrp

DISPATCHPRICE

last 3 day average actual RRP for same time

PREDISPATCHREGIONSUM (intervention = 0)

hours_out

time_of_day

day_type (weekday_or_weekend)

dispatchableload

netinterchage

(availablegeneration - uigf)

(dispatchablegeneration - scheduled_clearedmw)

ss_solar_clearedmw

ss_solar_uigf

ss_wind_clearedmw

ss_wind_uigf

totaldemand

totalintermittentgeneration

STPASA_REGIONSOLUTION

hours_out

time_of_day

day_type (weekday_or_weekend)

aggregatepasaavailability

aggregatescheduledload

netinterchangeunderscarcity

aggregatecapacityavailable

ss_solar_cleared

ss_wind_uigf

ss_wind_cleared

ss_solar_uigf

demand10

demand50

totalintermittentgeneration

demand_and_nonschedgen

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