Table 3 Solar irradiance forecast error comparison table.

From: Forecasting of virtual power plant generating and energy arbitrage economics in the electricity market using machine learning approach

Error

AOLSTM method

Persistence method

Gradient Boost method

Random Forest method

MAE

0.381

3.918

4.98

5.93

MSE

0.268

15.986

42.28

56.47

RMSE

0.520

3.971

6.53

7.53

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