Cogeneration System

Cogeneration System

Taikisha's Technology

What is co-generation systems?

Energy saving and cost saving system by efficient energy generation with gas engines, gas turbines or fuel cells, etc, and that of waste heat utilization for cooling, heating, hot water supply or industrial utility heat sources.
This system is also effective as a part of BCP by constructing the system power generative in case of an emergency.

Can provide solutions to these problems

  • Want to enhance safety and reliability
  • Want to reduce CO2 and enhance energy efficiency


Effective Energy Use Reduces Running Costs

This system recovers exhaust heat from a motor that drives a generator, and then effectively utilizes it as a heat source. Since medical facilities require a large energy consumption per unit floor area for various purposes including air conditioning, hot-water supply, steam for sterilization, lighting, medical equipment, and powered machinery, installing an optimally-sized cogeneration system (CGS) can reduce overall running costs.


  • Enduring safety and reliability

    This sysyem is private power generator for providing electricity in emergency, power outage or for BCP.

  • Energy saving

    Enhancing energy saving by utilization of waste heat for efficient ovarall energy use.

  • Reducing running cost

    Reduction of electric fee can be availble by lowering maximum commercial electricity demand by power generation.
    Reducing commerial electrity use and utilization of waste heat can lead to save energy for cooling, heating, hot-water, thus total utility cost can be lowered.

Case study

Delivery records of cogeneration systems for medical facilities

You can swipe left or right

Hospital/Location (Japan) Number of Units Heat engine Fuel class Generator Power (kW)
Category Engine power (kW)
Gas engine Gas turbine Diesel Fuel cell
Hospital A/Hokkaido 2 Certified 300 Bunker A 150×2
Hospital B/Tohoku 2 Certified 1,000 Gas 13A 500×2
Hospital C/Tokai 3 Certified 900 Bunker A 300×3
Hospital D/Tokai 3 Certified Certified 1,545 Bunker A 515×3
Hospital E/Kanto 2 Certified 1,000 Gas 13A 500×2
Hospital F/Kanto 1 Certified 214 Gas 13A 214
Hospital G/Kinki 2 Certified 1,400 Gas 13A 700×2
Hospital H/Kansai 1 Certified 1,600 Gas 13A 1,600
Hospital I/Shikoku 2 Certified 360 Bunker A 180×2
Hospital J/Kyushu 2 Certified 400 Gas 5C 200×2
  • The power and heat represent the capacity per one unit.

Example Installation of Cogeneration System (for extension of a hospital)


Location Hokkaido
Total floor area Approx. 10,500㎡ (existing) + 6,500㎡ (extension)
Beds Approx. 250
Background for Installation Since used for individual sickrooms and the outpatient examination department, the extension is unlikely to add a new revenue stream. To offset an increase in running costs, two cogeneration systems with the power of 150kW each are installed.

System Flow

System Flow & Pattern of Operation

System Flow
Pattern of Generator Operation (Summer)
Hot*water Supply Loads and a Pattern of Exhaust Heat Utilization (Planned values)
Aquavent · mark II Flow