Promoting energy efficiency in small hotels and guests houses in Cat Ba, Hai Phong
Promoting energy efficiency in small hotels and guests houses in Cat Ba, Hai Phong
Cat Hai commune is situated on an island - entrance to the Hai Phong city. The location has strategical importance as the first entrance to the city with oceanic resources, beautiful tourist attractions, security importance, and aquatic resource and service center of the city.

With famous tourist attractions, the tourism and hospitality industry of the commune contributes the largest portion of the service sector and the regional product. The number of tourists has increased rapidly over the years, with 500000 tourists in 2008. Income from tourism and hospitality activities averages roughly 45 billion dong. Currently there are 105 hotels and hostels with 2500 rooms with two 3-star hotels, seven 2-star hotels, thirteen 1-star hotel and small private hotels with capacity from 15 to 30 rooms.
In the hospitality industry, electricity is used mostly in air conditioning and hot water. During the peak hours (6-8am and 6-8pm), the demand for hot water soars because tourists bathe after returning from the sea, overworking the network and causing power outage all over the area.
Although solar power has been experimented to mitigate the problem in some hotels, the proportion of solar power is small. Combined usage of solar power and other forms of energy to generate hot water is not efficient and electricity is still needed.
In addition to the inefficiencies of the hot water system, using a local system for each hotel room leads to complex maintenance problems and high costs associated with cleaning of multiple systems at the same time.
Besides hotels and restaurants, household electricity use also contributes a large part in total commune electricity use. In this category the major contributors are also hot water systems and air conditioners. Coupled with the national electricity shortage, rapid growth and increasing energy demand, especially in recent years, household electricity use has increased continuously at over 15% per year, in which hot water systems contribute a major part. It is estimated that about 2 electric hot water systems are used in Vietnamese households. About 60% of households have installed hot water systems and air conditioners.

Cat Ba, as a tourist town, has a high electricity demand to cater to hotels, restaurants and other services. The town population is 10571 divided into 9 demographic areas. However, due to the island geography, the electricity distribution system of the town is less developed and more challenged than those of other parts of the city. On the district there are 11 out of 12 communes using the national electricity system for production and daily life. The electricity distribution system of the commune is run down and over capacity. The electricity loss rate reaches up to 18.05% in the first 6 months of 2009. Cat Ba’s electricity demand swells abruptly in the tourist season due to hot weather and increasing tourist flows.
In the current situation, finding a solution to reducing electricity use is essential to the island’s sustainable development. Electricity is a luxurious type of energy whose production use fossil fuels such as coal, oil, gas with only 25-30% productivity in Vietnam. Therefore, direct using of raw materials to generate hot water will contribute to reducing CO2 emissions to the environment due to electricity generation.
The general objective of the project is to enhance awareness and community participation in wise and efficient energy use. The project will focus on building a model of hot water heating that uses coal combined with solar energy to reduce electricity use for hotels and households. Based on results of these models, lessons will be extracted and disseminated as proof of economic, social and environmental impacts of the models for further expansion of the model on the Cat Hai district and other regions.
The model of hot water heating using coal combined with solar energy to reduce electricity use for hotels
The project will build some models for centralized hot water heating using coal combined with those using solar power in appropriate conditions for generating hot water for small and medium-size hotels (15-30 rooms). The plan for the system is illustrated in the following graph. The investigation of 8 hotels with 15-30 rooms in Cat Ba tourist area shows that the need for a centralized hot water heating system is huge and that hotel owners are eager to experiment the solution proposed by the project.
3.1 - General objectives of the project
Reduce electricity use for hotels and households by using a centralized hot water heating system using solar power, thus reduce the greenhouse gas emitted into the environment.
b) Results and planned activities of the project
Goal 1: Build a model and extract lessons from using the centralized hot water heating system using solar power, help save energy and improve energy efficiency in chosen hotels.
Result 1.1: 4-5 hot water heating systems are designed and approved for 4-5 chosen hotels.
Result 1.2: Produce, install and operate these systems successfully
Result 1.3: Data for result valuation is collected via observation and during compilation of lessons and technical documents
Goal 2: Build a model and extract lessons in experimentation of hot water heating system using solar power in households
Result 2.1: A specific location for the hot water heating system is identified
Result 2.2: 20 - 25 systems of ?NN NLMT are designed, installed and operated.
Goal 3: Improve awareness and knowledge about climate change and solutions to economical and efficient use of energy in hotels and households.
Result 3.1. Hold training and communication activities about energy saving solutions in hotels and households

Project Snapshot

Viet nam
Area Of Work:
Climate Change Mitigation
Grant Amount:
US$ 50,000.00
Co-Financing Cash:
Co-Financing in-Kind:
Project Number:
Currently under execution

SGP Country office contact

Mrs. Huyen Thu Thi NGUYEN
(84 24) 38500150
(84-24) 37265520
Ms. Nguyen Thi Hai Yen
(84 24) 38500155
(84-24) 37265520
Bich Kieu


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