micro CHP for housebuilders

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Micro CHP is generally considered a solution for existing homes.  That is primarily because it is possible to install micro CHP in homes where it is difficult or impossible to apply other energy efficiency measures, for example, loft insulation (in flat roofs, combed ceilings or dormer windows) or cavity wall insulation (in solid or already insulated walls) or double glazing and draught-proofing where these are already in place.  However, micro CHP, like any other energy efficiency measure, should be ranked according to its cost-effectiveness.  In simple payback terms, it is more cost-effective than double glazing, less than loft insulation and about the same as cavity wall insulation.

The logical consequence of this is that micro CHP should be considered only after a high level of insulation has been achieved and that, for new homes, it is cheaper to specify insulation than micro CHP.  However, if a space heating demand still exists and there is a substantial demand for domestic hot water, it may then be appropriate to install micro CHP.  In other words, micro CHP should be as well as, not instead of, insulation.

A further complication  is that the government has identified micro CHP as a key element in its energy policy and is therefore introducing financial incentives to encourage the uptake of the technology.  One such measure is the EEC (Energy Efficiency Commitment) imposed on energy suppliers who may choose to subsidise the upfront cost of micro CHP in the same way as is currently used for condensing boilers.  Additionally, because of the economic benefits to energy suppliers, they may offer to install the units free of charge in exchange for mutually beneficial supply contracts with the householder. 

If you require further details on micro CHP please refer to the "papers" page, or click here for an illustrated presentation.







Contact : info@microchap.info

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This site was last updated on 01 January 2015  Jeremy Harrison