Satara is known for a variety of reasons, one of which is not thermal power plants.

Option 1, thermal power plant, refers to power generation plants that produce electricity by converting heat energy, usually from burning coal, into mechanical energy which then turns an electrical generator. This is incorrect as Satara is not known for thermal power plants.

Option 2, wind energy plant, is also an incorrect option. These plants generate electricity using wind turbines to harness wind power. While Maharashtra, the state where Satara is located, does have significant wind energy production, Satara is not specifically well-known for this.

Option 3, refers to a hydroelectric plant. These plants use flowing or falling water to generate power. Although Satara has rivers, it`s not specifically recognized for a hydroelectric plant.

Option 4, nuclear power plant, is also incorrect as Satara does not have a nuclear power plant. These plants use nuclear fission to generate heat, which is then used in a steam turbine to produce electricity.

Alert - Correct answer should be `none of the above` as Satara isn`t renowned for any of these power plants. Satara is rather well-known for its cultural heritage, forts, and natural beauty.