The correct option is 2 only.
Explanation
The power supply chain consists of generation, transmission, and distribution. In any electrical grid, the physics of energy transfer and operational inefficiencies result in a disparity between the total energy generated and the energy finally consumed.
Statement 1 is Incorrect: It is physically impossible for electricity generated to be consumed entirely without any loss. Energy is dissipated as heat due to the electrical resistance of transmission lines and the inefficiency of transformers and other equipment. Furthermore, commercial factors such as theft and unmetered connections prevent 100% of generated power from being accounted for by legitimate consumers.
Statement 2 is Correct: A significant portion of electricity is lost during the transmission and distribution (T&D) process. In India, these are categorized as Aggregate Technical and Commercial (AT&C) losses. Technical losses arise from the physical properties of the grid, while commercial losses arise from power theft, billing inefficiencies, and default in payments.
Statement 3 is Incorrect: The electricity available for final consumption is always lower than the total electricity generated. Since a portion of the energy is lost during transmission and distribution, the net supply reaching the consumer is the gross generation minus these losses (and auxiliary consumption by the power plant itself).
Key Takeaway: The efficiency of a power sector is measured by its ability to minimize Transmission and Distribution (T&D) losses. The electricity reaching the consumer is always less than the electricity generated due to inevitable technical and commercial leakages.