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Trigeneration (CCHP) Installation



We are a market leading Trigeneration provider and the official UK and Ireland distributor for innovative MWM gas engines. Our Trigeneration installations and full 24/7 service and maintenance coverage not only ensure our clients maintain operational resilience; they also significantly reduce their energy costs and help reduce carbon emissions. Our full turnkey/EPC power solution has allowed users to take control of their energy asset and increase their competitiveness as costs continue to rise.


Trigeneration, or combined cooling, heat and power (CCHP), is the simultaneous production of electricity, heat and cooling all from a single source. The heat and electricity are produced by the normal operation of the combined heat and power (CHP) unit, and an absorption chiller is used as a means of producing chilled water from the heat output of the CHP.

An absorption chiller is a refrigerator that uses a heat source to provide the energy needed to drive the cooling process.

Absorption chillers do not have moving parts, as such there is little to no wear and tear on the technology and Operation and Maintenance costs are very low. In addition to this when considering it as part of a wider solution due to the technology the overall lifecycle costs are low. This makes it attractive on solutions whereby part or all the heat may not be required from the engine.

Typically, when an absorption chiller is included as part of a CCHP scheme you can expect a Coefficient of Performance (CoP) range of 0.6 – 0.8. If driven by steam this figure could increase the CoP from 1.2 – 1.4. This means that on average every kWth from the engine = 0.7kWcth at approximately 4°C.

Traditional electric chillers CoP is between 4 – 6. Thus, although they are significantly greater in efficiency, they require expensive grid purchased electricity to operate.

Absorption chilling whilst beneficial should only be considered on applications whereby the hot water or steam demand is little or none and the cooling demand is consistent and high.

Trigeneration installation provider


Trigeneration is mainly used in infrastructure where there is a continuous or seasonal cooling demand to produce air conditioning and refrigeration.

Most commonly CCHP is now found in Data Centres and the Food and Drink sector where there is not the requirement for all or some of the heat generated from the engine. Whilst CCHP requires additional equipment it allows users the ability to reduce their cooling load from electric chilling and utilise the energy from the engine which otherwise may have to be destroyed through dry air coolers.

Trigeneration application is a cost effective and low carbon method of producing heat and cooling from the CHP and our Trigeneration installations have benefitted a number of high-profile projects including MediaCityUK, Citigen London, Trinity College Dublin, and many more.


Edina’s CCHP installations are applicable and feasible in both existing and newly built facilities. However, it is important to mention that the benefits and payback are greater when the CCHP solution is considered in the earlier stages of a project. For instance, Trigeneration installation is best considered when:

  • Designing a new building or energy centre
  • Installing new boiler plant
  • Replacing existing plant
  • Managing electricity supply and security
  • Reviewing standby electrical generation capacity
  • Considering energy efficiency


A gas engine CCHP plant installation provides several substantial benefits, including:

  • High electrical efficiency
  • High thermal efficiency
  • Low operational costs
  • Simple electricity production
  • Lower electrical consumption from traditional chillers
  • Maximising engine and system overall efficiency
  • Fast project set up and installation
  • Flexible power opportunities
  • Reduced energy bills – CCHP typically saving a minimum of 10% on previous energy expenditure
  • Typical return on your investment payback in 3-4 years
  • Significant reductions in carbon emissions
  • Greater operational resilience – maintains security of power supply
  • Future proofing sites from uncontrollable external energy factors – improves financial forecasting (energy spend) and business competitiveness
  • Enhances corporate ethics

To summarise, our CCHP installations enable the fastest return on investment as the energy generated from the process can displace grid purchased or supplied power along with on-site generated thermal energy, which includes the cost of fuel, boiler efficiencies, maintenance and replacement equipment.

For more information about trigeneration, please visit the Association of Decentralised Energy or discover how our clients have benefitted from the adoption of a CCHP plant by visiting our case studies.

As a leading Trigeneration supplier, installer and maintenance provider with almost 40 years industry expertise, we have unrivalled technical knowledge of Trigeneration application and site integration. Our capability and comprehensive 24/7 service and maintenance coverage, maintains the operational health of plant and meets the strategic requirements of the power generation project.