Cogeneration (also combined heat and power, CHP) is the use of a heat engine or a power station to simultaneously generate both electricity and useful heat. We all know that all power plants emit heat while producing electricity, this heat energy can be used for other purposes. Masnedø CHP power station in Denmark(Image shown below)  uses the same concept.In my opinion it is a great project for Mechanical Engineering students.Its use is not only limited to big power plants, it can be used in other places too, good example of that is: implementation of co-generation plant at Carnegie Mellon University about which you can search on internet.

At the time of global warming ,it is vital to improve efficiency of  our power plants,this can be done easily using this method.University of Gaziantep journal about Performance assessment of co-generation plants proves my point.
Coopers’ Brewery uses this system to reduce its carbon footprint to 50 percent and at the same time double there production.

How cogeneration works ?

Even though companies started to implement co-generation in their plants , there is still lot to do in this field,for example there can be other ways to use this heat or how many other places this concept can be implemented.

Useful Resources :

Cogeneration for confectioners
MIT Cogeneration Project