The Electrical Considerations in Cogeneration

Cement plants often have large amounts of waste heat whose energy is best captured by converting it to electrical energy in a generator. To avoid restricting this energy recovery, the generator must be paralleled with another source of energy, normally the power company, so that its output can be governed by the available waste heat, rather than plant electrical needs. Operating a generator in parallel with the power company requires considerations not needed when the system is fed solely by the power company. It will be shown how the major considerations can be addressed to achieve successful parallel operation.