The correct answer is option 'D' (1, 2, and 3).

1. Perform, Achieve and Trade (PAT) scheme:
The Perform, Achieve and Trade (PAT) scheme is a key initiative under the National Mission for Enhanced Energy Efficiency (NMEEE). It is aimed at enhancing energy efficiency in energy-intensive industries. The scheme sets specific energy consumption targets for designated consumers in sectors such as thermal power plants, cement, steel, fertilizer, and textiles. These targets are known as the Perform Achieve Trade (PAT) targets.

Under the PAT scheme, designated consumers are required to achieve energy efficiency improvements by implementing various energy-saving measures. If a designated consumer exceeds the energy consumption targets, it is awarded Energy Saving Certificates (ESCerts). These ESCerts can be traded in a market-based mechanism, allowing industries that have not achieved their targets to purchase certificates from those who have exceeded their targets.

2. Market Transformation for Energy Efficiency (MTEE):
The Market Transformation for Energy Efficiency (MTEE) initiative is another important component of the NMEEE. This initiative aims to promote the adoption of energy-efficient technologies and practices in the market. It focuses on creating awareness, providing technical assistance, and supporting capacity building activities to facilitate the uptake of energy-efficient technologies by industries, commercial buildings, and households.

The MTEE initiative includes activities such as conducting energy audits, developing energy-efficient product standards and labeling, organizing training programs and workshops, and implementing energy management systems. These efforts help in transforming the market dynamics and promoting the widespread adoption of energy-efficient technologies and practices.

3. Energy Efficiency Financing Platform (EEFP):
The Energy Efficiency Financing Platform (EEFP) is a financing mechanism established under the NMEEE to support energy efficiency projects. It aims to overcome the financial barriers that hinder the implementation of energy efficiency initiatives by providing access to affordable financing options.

The EEFP facilitates the flow of funds from financial institutions to energy efficiency projects by providing them with credit guarantees and risk-sharing mechanisms. It also assists in designing innovative financing models and instruments to attract investments in energy efficiency projects. This platform plays a crucial role in mobilizing financial resources and stimulating private sector participation in energy efficiency initiatives.

In conclusion, the National Mission for Enhanced Energy Efficiency (NMEEE) consists of the Perform, Achieve and Trade (PAT) scheme, the Market Transformation for Energy Efficiency (MTEE) initiative, and the Energy Efficiency Financing Platform (EEFP). These initiatives collectively aim to enhance energy efficiency in energy-intensive industries by setting targets, promoting energy-efficient technologies, and facilitating access to financing options.