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Weighted MAE #15

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peterdudfield opened this issue Oct 6, 2022 · 0 comments

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peterdudfield commented Oct 6, 2022

Detailed Description

Calculated a Weighted Average MAE for all GSP

Context

For example if there are 2 GSPs

MAE is 50MW with 100 MW capacity
MAE is 10MW with 1 MW capacity.

Normally MAE would get 30 MW
WMAE would be very closed to 50 MW.

Possible Implementation

Find MW MAE for each GSP
Weighted average over each GSP by capacity of each capacity.

Sum (over GSP) (Sum (over time) (y_hat - y_i) / 48) * w_i
w_i should be GSP capacity / total capacity

I think this can be done in one SQL query

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