This document discusses various methods for improving the efficiency of electrical utilities, specifically in thermal power plants. It describes conventional methods like improving mechanical protection, reducing stator and rotor losses, and minimizing core losses. Modern methods discussed include using variable frequency drives to control motor speed, which can save up to 45% of energy consumption. Other methods are impeller trimming to match operating points and reduce motor loading, and de-staging impellers in multi-stage pumps when pressure requirements decrease to lower energy usage. Adopting these modern efficiency improvement methods, especially variable frequency drives and redesigning mechanical parameters, can help reduce motor loads and improve overall plant efficiency.