The simultaneous production of electricity and steam from a single fuel source, delivering energy efficiency of up to 86%.

Tech CoGeneration

Onsite generation can be divided into two categories: Prime and Emergency Standby.

Primary Generators
Prime power generators involve far more annual run hours than a pure standby application. Gas engines were designed for extended duty with lower power density and higher first cost than diesel engines. In this application fuel cost, maintenance cost, and emissions are the key concerns. Gas engines have cleaner exhaust emissions and deliver a significantly lower cost energy than diesel engines. Fast startups and rapid load acceptance are not a priority in prime power applications.

Standby Generators
Standby generators typically operate for less than 100 hours per year, and operations can be sporadic. Diesel engines have high-power density, low first cost, and can assume loads quickly during emergency startups. Fuel cost, maintenance cost, and emissions are secondary concerns for diesel generators due to low hours of annual usage.

Choosing the right on-site generation requires an understanding of the loads to be powered, the capability required of the engine to meet the loads, the site's access to cost-effective fuel, and the local emissions requirements.

At scale (greater than 1 MW), gas generation can be very competitive with grid power in terms of cost. Further, since the utilization may or go up or down, it is important to look at each site individually to determine the economics of placing on-site generators.