Combined heat and power involves generating on-site electricity with heat recovery. A combined heat and power system can typically provide 65% or more efficiency. Combined heat and power systems are usually best employed where Keating is required throughout the year; in places such as swimming pools, hotels and large catering facilities where large quantities of hot water and heat are needed every day. In general, a combined heat and power system will usually be economical if it is required to run for more than 5000 hours per year.
