Step 1: Understanding the Energy Conservation Act.
The Energy Conservation Act was enacted in India in 2001. However, the Energy Conservation Act of 2005 focused on the creation of an institutional framework for promoting energy efficiency in the country. The act gave a push to energy conservation in various sectors.
Step 2: Analysis of options.
- (1) 2004: Incorrect. The act was passed in 2001 but its provisions began being implemented in 2005.
- (2) 2001: Incorrect. While the Act was created in 2001, it took until 2005 for full implementation.
- (3) 2005: Correct. The Energy Conservation Act became operational in 2005.
- (4) 2010: Incorrect, as this was not when the Act was passed or implemented.
Step 3: Conclusion.
The correct answer is (3) 2005.