METI/ECCJ/AOTS Training Program

Indonesia

9.Promotion of High-Efficiency Boilers

Energy demand for hot-water supply dominates about 30% of the total energy consumption in a household.
A subsidy system has been introduced to promote the proliferation of energy efficient hot-water systems.

CO2 Refrigerant Heat-pump Boiler

Latent-heat Recovery Boiler

Utilizing the principle of a heat pump used in an air-conditioner, it can be heated with energy of about 3 times more than input energy. This realized energy saving of about 30% compared to traditional combustion-type boiler.

It recovers latent heat of exhausted gas, which was usually wasted. This realized energy saving of about 15% compared to a conventional combustion-type boiler.

10.Reduction in Standby Power Consumption

Standby power consumption in the household sector accounts for about 10% of its total power consumption.
The home appliance industry has introduced a voluntary program for reducing standby power consumption.

Outline of Voluntary Efforts by Relevant Industrie

In regards to products that essentially require standby power, the relevant industries shall work toward the goal up to 1W standby power by the end of FY2003 (by the end of freezing year 2004 for an air-conditioner).
- In regards to major home electrical appliances except for the above-mentioned products, the relevant industries shall also work toward the goal as close to zero watt as possible in standby power of the products’ bodies by the end of FY2003.
Industries concerned: Japan Electronics and Information Technology Industries Association (JEITA), Japan electrical manufactures’
Association (JEMA), and Japan Refrigeration and Air-conditioning Industry Association (JRAIA)

Achieved by around 75% models by May 2003

11-1 Improvement in energy efficiency of home electric appliances(Japan)

(A)Change in energy conservation performance of freezers/refrigerators

* Rated internal volume and annual electricity consumption per 1litre
of rated internal volume are average values derived from the value
of main refrigerator from each manufacturing company.

Source: The Japan Electrical Manufacturers’ Association (JEMA)

11-2 Improvement in energy efficiency of home electric appliances(Japan)

(B)Changes in energy conservation performance of air conditioners

imple average values of typical models of energy conservation type wall-mounted cooling and heating air conditioners with 2.8kW cooling capability.

* = total consumption during term
Note) Based on Japan Refrigeration and Air Conditioning Industry Association standards JRAS4046 (standards for calculating room air conditioner term power consumption)
Source) Japan Refrigeration and Air Conditioning Industry Association

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