Data has been collected from 68 European CHP plants covering several technologies and a diverse range of biomass fuels. Data collection consists of a long range of operational parameters on a monthly basis, which is combined with basic key data, collected in the beginning of the project period.
Monthly data are collected over a period of a total of 24 months.
Presentation of operational data is given in a series of graphics, each presenting one or more parameters such as electric efficiency, own power consumption or similar. Results are now available for download in the main project report, the Best Practice Guide, which can be downloaded in PDF-format from the following link:
Major findings worth noticing are e.g.
- Plant owners often overestimate the efficiency, which can be achieved – there are huge differences between the nominal efficiency for electricity and heat as estimated in project planning, and the performance achieved in the practical operation of the plants.
- The internal comsumption of electricity in the plants is significant, and some technologies perform better than others in this context.
- Operational stability and availability of the plants are not impressive; for some technologies it is critically low.
- Utilization of the installed capacity is often low, either due to part load operation or to extended periods of plants being out of operation.
Results from the first 12 month period from September 2003 to August 2004 was made available earlier in an Interim Report. Results and conclusions in this report are similar to those found in the Best Practice Guide, however should you wish to study these interim results the report is available for download.
Major project findings and other experiences from biomass CHP plants in operation were given in presentations at the project Workshop, March 2006 in Vienna.
Please also take a look at the paper presented at the recent biomass energy conference in Paris, where further analyses were given, including some comparative studies between the technologies included in the project.