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Micro Combined Heat and Power Accelerator 

The Carbon Trust’s micro-Combined Heat and Power (micro-CHP) Accelerator carried out the first large-scale, independent field trial of micro-CHP systems in the UK - including domestic and small commercial applications, together with a complementary field trial of condensing boilers.

 
 

Micro-CHP systems produce electrical power and thermal energy from a single energy source – and could save a lot of energy when compared to traditional systems (such as condensing boilers and grid-supplied electricity).

The field trial:

  • 87 (micro-CHP) systems were installed and monitored between 2005 and 2008.
  • including 72 domestic Stirling engines and 15 internal combustion (IC) engines.
  • measured against over 30 “A-rated” condensing boilers to provide a robust baseline. 
  • at each site up to 20 parameters were measured at five-minute intervals.

The key findings in the final report were:

  • 12% to 21% carbon savings
    In small commercial applications, where IC-engine Micro-CHP systems were installed as the lead boiler.
  • 4% to 14% carbon savings
    In houses with higher heat demands.
  • Potential market of at least 4 million homes in the UK
    If costs can be reduced and performance continues to improve.

View the Micro-CHP Accelerator final report.

The interim dataset from 2007, including details of the field trial methodology, is available on request. The full dataset will be available shortly.

 
 

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