When power is constant, energy can be expressed as a product of power and time.
Conditions:
Power is constant, i.e. \(\frac{d P}{d t} = 0\).
Links:
Wikipedia.
energy consumed or released during time \(t\).
energy
E
\(E\)
Constant power.
power
P
\(P\)
time.
time
t
\(t\)
E = P * t
law