Promoting Energy Efficiency in Commercial and High-Rise Residential Buildings in Viet Nam


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Promoting Energy Efficiency in Commercial and High-Rise Residential Buildings in Viet Nam

September 16, 2019

The leaflet shows the results of the demonstration projects component of the EECB project.

The project provided technical assistance to design teams of 5 buildings under development. The first objective was to ensure Energy Efficiency (EE) building codes (QCVN09) design and construction compliance, and to even surpass significantly by 25-30% the energy consumption of a baseline building.

The first results show that it is easy to achieve between 25 to even 66% of energy savings against a baseline case, and between 20 to 37% compared with a strictly QCVN09 compliant building case.

It is important to note that the earlier the design is improved, the more cost effective the proposed solutions are.

As most of the building performance is tied to its orientation, its shape and its envelope parameters (i.e. its passive design elements), it is important for EE design choices to be made at as early as possible during the design definition.

In such cases, potential extra costs to improve insulation and reduce heat transmission might even be offset through the significant savings that can be triggered by possible re-sizing of AC system capacity, and the optimization of lighting system (i.e. the right combination of natural lighting and artificial lighting needs).

Along this project, the team had the opportunity to train partnering design teams on the concept of Integrated Energy Design, which is a revolutionary way to design EE building by involving all design and even construction actors from the early stage, enabling all necessary synergies to select the most appropriate design strategies and features.

This exercise also revealed that the most successful cases have been the ones for which the building owners strongly and early committed to EE, and demonstrated their leadership all along the building project development.

Document Type
Regions and Countries