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Micro combined heat and power technology known as microCHP or microCogen, is on the brink of changing how Canadians power and heat their businesses and homes.

microCHP technology is based on the same concept as cogeneration, where both heat and electricity are generated using a single fuel.

These microCHP systems are designed for stand-alone (off-grid) applications, using wet or dry conventional fuels like Diesel, LPG or NG as well as renewable energy fuels such as VO, WVO, Biodiesel, Woodgas and Biogas.

How microCHP technology works

Conventional power generators use only 30-35% of the fuels energy content to produce electricity.
The balance of 65-70% is unused waste heat.
Egenolf microCHP’s recover the waste heat from the exhaust and the coolant of the generators engine resulting in a total efficiency of up to 85% (HHV).

The thermal energy of the coolant from the liquid cooled generator engine as well as of the exhaust gas are captured with special designed hydronic heat exchangers and stored into a large buffer tank (Thermal Battery). Thermostatically controlled heat loads withdraw the stored heat from the buffer tank on demand. If the stored heat in the buffer tank reaches its lower threshold the generator automatically starts up (Heat Mode), charging up the buffer tank with heat. At the same time while the generator is running the battery bank gets charged up and an automatic transfer switch supplies power to the connected electrical loads.

In case the demand for charging up the batteries comes first (Power Mode) all the waste heat from running the generator is stored in the buffer tank for future heat demand. The buffer tank is designed to store enough heat for a typical generator running cycle, without having to direct surplus heat into a dump load in order to avoid overheating of the system. Extremely efficient insulation keeps the heat loss in the buffer tank to a minimum. If the electrical load on the generator is below 40%, electrical heaters build into the buffer tank increase the electrical load on the generator to the most efficient threshold for the specific generator type.

That is especially important for diesel gen-sets, since they turned to 'Wet-Staking' when under performed.

How much energy output can be produced

For example a 15kW diesel generator produces about 25kW/h (85,300Btu/hr) in heat at full continuous load. A typical running cycle takes somewhere between 4-5hrs. The thermal heat produced and stored during the running cycle is between 341,000 and 426,000Btu's in addition to the 60-75kWh on electricity produced at the same time.

In reality you won´t run your generator at a 100% load for a full running cycle and load fluctuations in a standalone operation are very normal. Therefore the realistic values vary between 60 to 90% of the above mentioned full load values depending on your specific situation.


Egenolf microCHP Kubota 9.75kW(e) / 17.5kW(th) or 59,000 Btu
$ 25,800.00

Egenolf microCHP Isuzu 12.5kW(e) / 21.5kW(th) or 73,000 Btu
$ 29,400.00

Egenolf Isuzu / Stamford 50kW(e) / 86kW(th) or 293,400 Btu
$ 58,600.00

plus shipping cost and tax.

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