Cogeneration and trigeneration

Cogeneration

The first and obvious step in solving the issue of rising CO2 levels may be the more efficient and sustainable use of alternative energy sources. The cogeneration technology can significantly increase the fuel utilization factor when the residual heat released by gas engine or gas turbine power plants is transported and utilized in heating of infrastructure facilities or residential complexes.

At GRYS Power we are solving this issue at the local and large-scale levels, providing complex cogeneration energy for large industrial sites and freestanding buildings.

Cogeneration, also known as combined heat and power (CHP), can generate heat and power simultaneously from a single source. Cogeneration is a highly efficient solution as it can fully utilize the heat, generated as a power generation by-product.

This heat is captured in several ways and used to:

• Supply power to heating networks and boilers
• Supply heat to the apartment buildings, hospitals and municipal buildings
• Supply steam for the industry
• Generate cold electricity for industrial refrigeration systems or HVAC

Electricity can be generated using piston engines. It can also be produced using gas or steam turbines. In each case, heat is recovered to generate steam or supply hot water to the heating networks or buildings.

Benefits of Cogeneration

Cogeneration provides a variety of benefits:

• Significant reduction in CO2 emissions due to the absence of the need for separate heat and power generation
• Saving energy resources from 10% to 25% compared to the systems of separate heat and power generation
• Development of renewable energy resources through the use of CHP plants, operating on biomass, biogas and biofuel
• Reduced energy costs for wholesale power market facilities
• Providing advanced facilities that provide a continuous supply of power, as opposed to the intermittent supply of power from solar and wind energy sources
• Consistent and independent power quality assurance

Trigeneration

The introduction of cogeneration is a priority technology, which is optimal for use in countries with a cold climate. In more southerly regions, the heat generated is often superfluous, but the need for cooling the buildings and products, on the contrary, increases. In this situation, another element is added to the system – "absorption refrigeration machine", which consumes heat and produces cold at the output of the process. This process is called trigeneration.