H-25 Combined Heat and Power Plant for District Heating Use

Less CAPEX, OPEX, and CO₂ emissions ― H-25 as best solution for district heating

The combined heat and power plant, also being referred to as “cogeneration” is optimized solution for district heating. The adoption of the H-25 gas turbine generator unit and a heat recovery steam generator (HRSG) as a cogeneration system will result in the efficient use of fuel to generate power as well as steam and hot water necessary for district heating, with less investment. With almost 200 units operating globally, the H-25 has demonstrated experience and proven reliability that is essential for local public services. There are various maintenance and outage planning options depending on the clients desired level of support. User can choose from a menu of service options that including remote monitoring and long-term service agreement. H-25 is ready for hydrogen. The development of 100% firing with Dry Low NOx Combustor is underway.


Minimum capital and operating expenditures for a highly efficient heat and power supply

The combined heat and power system configured with the H-25 gas turbine and an HRSG delivers an effective supply of power as well as steam and hot water from the recovered exhaust heat, achieving an overall plant efficiency of 84%. The H-25 produces more exhaust thermal energy than other gas turbines in its class. Turbine exhaust temperatures reach approximately 570℃ at 37-38 Gcal/h per unit at ISO condition. This results in a steam temperature that will be high enough to run a new or existing steam turbine that requires 530℃, without supplemental heating of HRSG. No supplemental heating eliminates the need for additional fuel and duct firing systems, resulting in lower capital and operating expenditures.

 Achieving 84% overall plant efficiency

Satisfying heat and power demand while reducing CO₂ emissions in the region

Operators considering replacing older generating assets can take advantage of the increased supply of combined heat and power and efficiency from the H-25 gas turbine power plant, which enables users to reduce the power supply from other aged power plants using boilers and steam turbines. This not only satisfies the heat and power demand in the region, but also reduces natural gas use by 71,000 tons per year, as well as CO₂ emissions by 187,000 tons per year in the region.

Reducing fuel consumption and CO₂ emissions by combined heat and power plant with H-25 gas turbine

*The amount of reduction of CO₂ emission is calculated by Mitsubishi Power, based on the value of fuel gas consumption (assumption) in the final report of JICA’s study for the modernization of Tashkent cogeneration power plant conducted in 2009.

Assisting customer’s intention of seeking finance aid at early stage of its project

Mitsubishi Power can coordinate with Export Credit Agency (ECA), JICA, and other relevant organizations for initiating finance arrangement. Especially in early stage of the project, we can assist for finding the potential financing path in responding to customer’s request. Here’s H-25 GT’s reference with Japanese ECA:

 H-25 GT’s reference with Japanese ECA