Consider urban development from an energy-centered perspective

By creating a city that is good for the global environment and easy to live in, we will create a city with high value, attract residents (men and women of all ages) and companies, and help create a city where sustainable economic growth can be expected. .

In this article, we will introduce some of the subsidized projects in Da Nang and Ha Long, Vietnam.

Macnica contract business

We conducted a JCM applicability survey for energy conservation business such as factories in Da Nang City, Vietnam, and conducted interviews and surveys from the following three perspectives.

<Introduction considerations>
1 Factory waste heat treatment power generation
2 Smart Light Conformity Certification
3 Radiant air conditioning

1 Factory waste heat treatment power generation

Adaptation study system (technology)
Da Nang Steel Co., Ltd. investigated the feasibility of power generation using the waste heat generated in the factory.

Implementation work
In the situation where travel is not possible, we conducted a hearing on the current environment at a web conference with Danang Steel.
Based on this information, we examined the feasibility of the two plans shown in the figure below. At the same time, we conducted an energy-saving diagnosis and examined future energy-saving measures.

the next deployment
As a result of the examination, it was found that it would be difficult to adapt the scale of the waste heat treatment power generation at Danang Steel Co., Ltd. because it is small scale.
Therefore, it was decided to proceed with the examination of the optimal power generation business in the surrounding area and on the scale of the industrial park in FY2021.

2 Smart light conformity certification (street light LED)

Adaptation study system (technology)
The introduction of LED bulbs to a large area of streetlights is expected to contribute greatly to the "realization of the smart lighting concept" advocated by Da Nang City.
Using the JCM equipment subsidy project for this project, we examined the introduction of the most suitable LED light bulbs for Da Nang city.

Implementation work
Examination of compatibility with each department in charge of Da Nang City and web meeting.
The construction method, illuminance, number of installations, etc. that match the local conditions were examined in detail, and the quantity that could be introduced and the budget scale were set while coordinating with the local organization.
Despite the COVID-19 situation, LED equipment evaluation was carried out with the cooperation of the equipment evaluation department of Da Nang City.

the next deployment
As a result of the examination, in FY2021, in order to promote comprehensive smartification, it was decided to examine the suitability of not only LED lighting alone but also a smart lighting system that cooperates with roads and areas.

3 Radiant air conditioning

Adaptation study system (technology)
In Da Nang City, it was assumed that the energy consumption reduction effect in the air conditioning sector would be extremely high.
Therefore, in this project, we investigated the possibility of introducing radiant cooling and heating (CeeM), which consumes significantly less energy.

Implementation work
Continuously explained, evaluated, and considered installation of radiant heating and cooling to the department in charge of Da Nang City. Conformity requirements and installation facilities were examined.

the next deployment
Mutual agreement to implement equipment evaluation in FY2021. We are currently confirming the evaluation environment and verification method.

Fiscal 2021 Support for the development of a low-carbon technology model project in Da Nang City

Based on the survey results, we have decided to support the development of a model project for low-carbon technology in Da Nang City in 2021 from the following perspectives.

・Proposal of a smart energy system development model for Da Nang City.
・Considering the feasibility of a project to optimize energy demand and supply and reduce carbon emissions in a specific area of Da Nang City.

Macnica contract business

We investigated and examined the feasibility of the smart infrastructure that will be newly established in Amata City Halong to realize the "smart cityization of the block centered on the residential area".

<Introduction considerations>
1 Smart energy services that are assumed to be compatible and overview settings
2 Examination of compatible technologies for smart energy services
3 Outline design of smart energy business

Considering laws and regulations applicable to the Halong region of Vietnam, demand forecasts, suitability for users, etc., and designing a business outline that assumes appropriate introduction.

■ Assumed implementation items (Phase 1)
・Photovoltaic power generation (power conditioner): grasping the amount of power generated and controlling the output
・Storage battery: Grasping storage battery capacity and charge/discharge control
・Monitoring of receiving and supplying devices
・Optimization of energy use within the grid

■ Operation management
・Management PV generation and output
・Manage storage charging and discharging
・HVC management
・Optimization of energy use

■ Examining items that can be made more efficient by using AI (assumed)
・Recognize power generation capacity and control excess power generation (stop power generation)
・Recognizes storage capacity and supplies power to EV
・Appropriate supply of power by recognizing power generation capacity, usage in equipment, and storage capacity (predictive control: implementation of weather and event response)
・Optimal control of total energy utilization