CHP explained – video series

99 short explainer videos on combined heat & power: components, measurements and FAQs.

Engine

Cylinder Exhaust Temperature
Cylinder Exhaust Temperature
Piston
Piston
Lambda Sensor
Lambda Sensor
Knock Sensor
Knock Sensor
Oil Pressure
Oil Pressure
Oil Temperature
Oil Temperature
Engine Coolant Temperature
Engine Coolant Temperature
Exhaust Temperature After Turbocharger
Exhaust Temperature After Turbocharger
Turbocharger
Turbocharger
Charge Air Cooler (Intercooler)
Charge Air Cooler (Intercooler)
Spark Plug
Spark Plug
Gas Mixer & Throttle Valve
Gas Mixer & Throttle Valve
Crankshaft
Crankshaft
Camshaft
Camshaft
Valve Clearance
Valve Clearance
Engine Oil Quality
Engine Oil Quality
Starter Battery
Starter Battery

Generator

Synchronous Generator
Synchronous Generator
Excitation / AVR
Excitation / AVR
Winding Temperature
Winding Temperature
Generator Bearing Temperature
Generator Bearing Temperature
Grid Synchronization
Grid Synchronization
Active Power
Active Power
Reactive Power / cos φ
Reactive Power / cos φ

Heat

Plate Heat Exchanger
Plate Heat Exchanger
Supply Temperature
Supply Temperature
Return Temperature
Return Temperature
Buffer Tank
Buffer Tank
Exhaust Heat Recovery (WHR)
Exhaust Heat Recovery (WHR)
Emergency Cooler
Emergency Cooler
Condensation Recovery
Condensation Recovery
Heat Meter
Heat Meter

Gas train

Gas Pressure / Supply Pressure
Gas Pressure / Supply Pressure
Gas Quality / Methane Number
Gas Quality / Methane Number
Flame Monitoring
Flame Monitoring
Gas Valve Train
Gas Valve Train
Gas Meter
Gas Meter
Gas Storage / Level
Gas Storage / Level

Electrical & CHP

Grid Frequency
Grid Frequency
Full-Load Hours / Operating Hours
Full-Load Hours / Operating Hours
Power-to-Heat Ratio (σ)
Power-to-Heat Ratio (σ)
Self-Consumption
Self-Consumption
KWK Subsidy Meter
KWK Subsidy Meter
Grid Protection Relay
Grid Protection Relay

Emissions

NOx Measurement
NOx Measurement
CO Measurement
CO Measurement
Oxidation Catalyst
Oxidation Catalyst
Formaldehyde Emissions
Formaldehyde Emissions
TA Luft Emission Limits
TA Luft Emission Limits
Biological Desulfurization
Biological Desulfurization

Operation

Heat-Led vs. Power-Led Operation
Heat-Led vs. Power-Led Operation
Power Modulation
Power Modulation
Start-Stop Cycles
Start-Stop Cycles
Maintenance Interval
Maintenance Interval
Operating Hours Counter
Operating Hours Counter

FAQ

When Does a CHP Pay Off?
When Does a CHP Pay Off?
Efficiency: Electrical vs. Thermal?
Efficiency: Electrical vs. Thermal?
Maintenance Costs per kWh?
Maintenance Costs per kWh?
CHP vs. Heat Pump?
CHP vs. Heat Pump?
KWK Subsidy 2026?
KWK Subsidy 2026?
CHP in an Apartment Building?
CHP in an Apartment Building?
Natural Gas vs. Biogas CHP?
Natural Gas vs. Biogas CHP?
CHP in Direct Marketing?
CHP in Direct Marketing?
CHP Won't Start – What's the Cause?
CHP Won't Start – What's the Cause?
Why Is CHP Power Dropping?
Why Is CHP Power Dropping?
CHP in Summer: Emergency Cooler Needed?
CHP in Summer: Emergency Cooler Needed?
When Is the Catalyst Poisoned?
When Is the Catalyst Poisoned?
How Are Lambda and NOx Related?
How Are Lambda and NOx Related?
What Is Islanding in a CHP?
What Is Islanding in a CHP?
How Often to Change Oil in a Gas Engine?
How Often to Change Oil in a Gas Engine?
How Does Biogas Quality Affect the Engine?
How Does Biogas Quality Affect the Engine?
How to Recognize Turbocharger Wear?
How to Recognize Turbocharger Wear?
How Does Gas Storage Level Control the CHP?
How Does Gas Storage Level Control the CHP?
What Causes Knocking in a Gas Engine?
What Causes Knocking in a Gas Engine?
Total CHP Efficiency: What Counts?
Total CHP Efficiency: What Counts?
When Does TA Luft Apply to CHPs?
When Does TA Luft Apply to CHPs?
Can a CHP Modulate?
Can a CHP Modulate?
How Large Should the Buffer Tank Be?
How Large Should the Buffer Tank Be?
How Is a CHP Remotely Monitored?
How Is a CHP Remotely Monitored?
How Does a Biogas Plant Generate Electricity?
How Does a Biogas Plant Generate Electricity?
EEG Funding for Biogas CHP?
EEG Funding for Biogas CHP?
Why Is Frequent On/Off Harmful?
Why Is Frequent On/Off Harmful?
When Must NOx Be Continuously Monitored?
When Must NOx Be Continuously Monitored?
Must KWK Heat Be Utilized?
Must KWK Heat Be Utilized?
How Does CHP Remote Alarm Work?
How Does CHP Remote Alarm Work?
CHP in a Container – What's Inside?
CHP in a Container – What's Inside?
Why Does a Biogas Plant Need a Gas Storage?
Why Does a Biogas Plant Need a Gas Storage?
What Does Exhaust Heat Recovery Provide?
What Does Exhaust Heat Recovery Provide?
Why Must Biogas Be Desulfurized?
Why Must Biogas Be Desulfurized?
How to Size a CHP Correctly?
How to Size a CHP Correctly?
What Is a CHP's CO₂ Balance?
What Is a CHP's CO₂ Balance?
How Long Does a CHP Engine Last?
How Long Does a CHP Engine Last?
What Do Exhaust Temperatures Reveal?
What Do Exhaust Temperatures Reveal?
What Coolant Temperature Is Normal?
What Coolant Temperature Is Normal?
When Is Oil Pressure Critical?
When Is Oil Pressure Critical?
How Does Grid Protection Protect the CHP?
How Does Grid Protection Protect the CHP?
Can a CHP Supply Reactive Power?
Can a CHP Supply Reactive Power?
What Temperatures Does the Heating Network Need?
What Temperatures Does the Heating Network Need?
How Much Methane Does the CHP Need at Minimum?
How Much Methane Does the CHP Need at Minimum?