Because the heat pump?

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impianto geotermico domestico

Facilitates access to the conditions that allow the primary energy savings in heating edifici.La Directive 2009/28/EC assimilates renewable thermal energy captured by heat pumps as:
- "aerothermal energy" means energy stored in ambient air as heat
- "geothermal energy" means energy stored in the form of heat beneath the Earth's crust
- "hydrothermal energy" means energy stored in the surface waters in the form of heat.
The cost effectiveness depends on the cost differential between the system solutions available, the level of consumption and the rates of energy (electricity / fuel). 

Operation of the heat pump - Heating

The heat pump transfers heat from one medium (or environment) at low temperature to another, at a higher temperature, through the provision of a limited energy input.

 

Operation of the heat pump - Cooling 

The heat pump transfers heat from one medium (or environment) at low temperature to another, at a higher temperature, through the provision of a limited energy input. 

The amount of energy (Directive 2009/28/EC - Annex VII) aerothermal, geothermal or hydrothermal energy captured by heat pumps to be considered energy from renewable sources for the purposes of this Directive, ERES, shall be calculated according to the following formula:
ERES = Qusable × (1 - 1/SPF)
where:
• Qusable = the estimated total usable heat produced by heat pumps fulfilling the criteria referred to in Article 5, paragraph 4, implemented as follows: Only heat pumps for which SPF> 1,15 × 1 / η shall be taken into account;
• SPF = the estimated average seasonal performance factor for those heat pumps;
• η is the ratio between total gross production of electricity and the primary energy consumption for the production of energy and will be calculated as an EU average based on Eurostat data.
The cost effectiveness depends on several factors:
• Cost of installation (competition, market access, negotiating skills, acquired volumes)
• Cost of energy (constant, progressive, regressive)
• Taxation (concessions yes / no)
• Incentives (Contributions by Local Authorities, White Certificates, Income Thermal, ...) 

The barriers to their spread:

• Initial investment higher
• limited information on actual performance
• Emerging Technology: afraid to risk failure
• Electricity rates are not favorable

Costs / benefits 

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