This chapter contains sections titled: Definition and Scope Rise of Cogeneration Basic Purpose of Cogeneration Three Types of Cogenerators Advantages Offered by Cogeneration Planning of Cogeneration Economic Objectives for a Cogenerator Operation of Cogenerators Working Together with Cogeneration Islanding of Cogeneration Section Environmental Considerations Cogeneration in Brazil Appendix B-1 A Typical Cogenerating System for a High-Tech, Science-Based Industrial Park in Taiwan Appendix 13-2 NERC Directive Appendix 13-3 Combined Power Generation and Captive Power Plants—A Typical Example Appendix 13-4 Cogeneration in Sugar Mills in India References