The Disadvantages of Hydel Power Plants

Hydel power plants, also known as hydroelectric power plants, generate electricity by harnessing the energy of flowing or falling water. While hydel power plants have several advantages, such as being a renewable energy source and having low operational costs, they also have some disadvantages. Among these disadvantages, the economics of hydel power plants play a significant role in determining their choice as a power generation option.

Economics of Power Plants

The economics of power plants refer to the financial considerations involved in the generation of electricity. This includes the initial capital investment, operational costs, maintenance expenses, and the cost of energy resources used to produce electricity. When comparing different types of power plants, the economics of each option are crucial in determining which plant is more advantageous.

Disadvantages of Hydel Power Plants

1. Capital Investment: The construction of hydel power plants involves significant capital investment. Building dams, reservoirs, and other infrastructure required for generating electricity from hydropower can be expensive. Additionally, the costs associated with acquiring land, environmental impact assessments, and obtaining necessary permits further contribute to the initial investment.

2. Cost of Energy Resource: While water, the energy resource used in hydel power plants, is freely available, the costs associated with harnessing it can be high. The construction and maintenance of dams, tunnels, and other structures necessary for water storage and flow control can incur substantial expenses.

3. Technical Skill Required: The operation and maintenance of hydel power plants require specialized technical skills. Skilled personnel are needed for the efficient operation of the plant, including managing the water flow, maintaining the turbines and generators, and ensuring the safety of the overall system. This requirement for technical expertise can add to the operational costs.

Economics as a Determining Factor

When comparing different power plant options, the economics of each option play a crucial role in decision-making. The economics of power plants are influenced by factors such as initial investment, operational costs, maintenance expenses, and the cost of energy resources. In the case of hydel power plants, the disadvantages mentioned above contribute to their overall economics:

- The high capital investment required for the construction of hydel power plants can make them less economically viable compared to other alternatives.
- The costs associated with harnessing the energy resource, such as building dams and controlling water flow, can further affect the economics of hydel power plants.
- The need for specialized technical skills adds to the operational costs of hydel power plants.
- Considering these factors, the economics of hydel power plants may not be as favorable as other power generation options, making them less advantageous when compared.

Therefore, the correct answer is option 'D' - economics that determine the choice of plant.