ECCJ / TextReport / Vietnam

ECCJ / TextReport

Vietnam

II-3. Energy Conservation Measures for the Commercial/Residential Sector

Promotion of High-Efficiency Boilers

Energy demand for hot-water supply dominates approximately 30% of 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 (ECO CUTE)	Latent-heat Recovery Boiler (ECO JOZU)	Gas Engine Boiler (ECO WILL)
Utilizing the principle of a heat-pump used in an air-conditioner, it can be heated with energy of approximately 3 times more than input energy. Energy saving of approximately 30% compared to a traditional combustion-type boiler is achieved.	Recovers the latent heat of exhausted gas, which is usually wasted. Energy saving of approximately 15% compared to a conventional combustion-type boiler is realized.	Uses the gas-powered engine's exhaust heat and power to provide heat (main) and electricity (sub) for approximately 10% of overall energy saving for a building.

II-3. Energy Conservation Measures for the Commercial/Residential Sector

Reinforced Energy Conservation Measures in Residence & Building Sector

【Modified points of the law】
Reinforced measures against stock Compulsory submission of the notification of energy-saving measures to the competent authorities by a party who will extensively repair non-residential buildings of a certain floor size (a total floor area of 2,000 m2 or more) etc. (The current law only requires the responsibility of parties who newly build, extend, or rebuild buildings.) Reinforced measures for residences Compulsory submission of notification of energy-saving measures to the competent authorities for residences of a certain size (a total floor area of 2,000 m2 or more) as in the case of non-residential buildings. (The current law only requires the concerned parties to make efforts to do so.)

【Contents of modification】

Competent authorities: Prefectural authorities, with district construction surveyors, governing construction authorization procedures
Energy-saving measures: Insulation of exterior walls, windows, etc. and effective use of air conditioning systems or the like
Extensive repair: Extensive repair or rearrangement of exterior walls, windows, etc, and new installation or extensive repair of air conditioning systems or the like

Those who have submitted the notifications mentioned above shall periodically report the maintained status of energy conservation measures to the competent authorities. (If the maintained status is found significantly insufficient, the authorities shall advise the concerned parties.)

II-3. Energy Conservation Measures for the Commercial/Residential Sector

Thorough Energy Management Utilizing IT
Promotion of Commercial Building Energy Management System (BEMS)

Use IT technology to promote and facilitate a system that supports energy demand management for commercial buildings (e.g., a system that ensures recognizing real-time room conditions in buildings by temperature sensors and/or the optimal operation of lighting and air-conditioning responding to conditions in the room).

II-3. Energy Conservation Measures for the Commercial/Residential Sector

Promotion of ESCO BusinessWhat Is ESCO Business?

A business that offers comprehensive services on energy conservation to clients, who in return will offer part of their energy saving gains (saving on utility bills, etc.)
The business has two forms: gGuaranteed savings agreementh, where customers cover business costs, and gShared savings agreementh where the ESCO business covers business costs. These options enable service provision according to customer needs.
* ESCO stands for Energy Service Company

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