G	Irradiation ($\mathrm{W}/{\mathrm{m}}^2$)
T	Temperature ($℃$)
q	Electronic charge (C)
k	Boltzmann’s constant
$\pi$	A policy
$V^{\pi }$	Value function
J	Objective function
L	Loss function
$Q^{\pi }$	Action-value function
a	Action
r	Reward
s	State
$\theta$	Weight matrix
$\gamma$	Discount factor
$\epsilon$	Exploration rate
I	Current (A)
V	Voltage (V)
P	Power (W)