Sci - Tech - Env

Despite being badly affected by the Covid-19 pandemic that took place for 3 consecutive years since 2019, Doosan Vina always strives to maintain production, create stable incomes for nearly 3,000 employees and especially maintain Tet bonus and gifts for employees and the local needy Tet in 2022.

Winter is well and truly on its way for the northern hemisphere with temperatures beginning to fall and already reaching the freezing point in some regions. According to forecasts there will be prolonged periods of icy and snowy weather in Europe on its way. So, what are the specific effects of winter on the operation of a solar PV system, and how should we carry out effective operation and maintenance (O&M) of the PV plant in cold weather?

On December 9, 2021, within the framework of the Project on Promoting Energy Saving in Industries of Vietnam (VSUEE) funded by the Green Climate Fund (GCF) through the World Bank (WB) and Saigon - Hanoi Bank (SHB) signed an Agreement for guaranteeing GCF with a total value of 75 million USD.

Southeast Asia, which possesses rich solar and wind power resources, is steadily decarbonizing its energy sources and phasing out reliance on coal power. Substantial investments penetrate renewable energy infrastructure, especially large-scale projects.

Doosan Vina was certified by Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. (MHIEC), Japan as the best supplier after completing the manufacture and supply of Waste-to-Energy (WtE) boiler pressure parts and made a great contribution to quality assurance and project schedule for the WtE power plant in Fushimi, (Kyoto).

Deputy Prime Minister Le Van Thanh has just signed Decision No.1881/QĐ-TTg dated November 9, 2021 of the Prime Minister promulgating the List of key energy users in 2020. According to the Decision, the total number of the key energy users in 2020 in the country were 2,961, including 2,480 industrial, 13 agricultural, 80 transportation and 388 construction units.

SHANGRAO, China, November 2, 2021 – JinkoSolar Holding Co., Ltd. (the “Company”, or “JinkoSolar”) (NYSE: JKS), one of the largest and most innovative solar module manufacturers in the world, today announced that it has launched a new series of ultra-efficient 2021 Flagship Tiger Neo Modules.

After nearly eight months since signing the contract to supply two additional super-heavy STS (ship-to-shore) cranes weighing 3,400 tons to the Gemadept - CMA CGM, two STS cranes number 7 and 8 of the Gemalink project have formed after super erection.

On October 26, 2021 at Hefei, China, Sungrow, the global leading inverter solution supplier for renewables, rolled out the brand-new energy storage system -- ST129CP-50HV Series, for the APAC commercial & industrial market. This powerful product proves the world’s best C&I ESS solution featuring simplicity, security, intelligence and cost-efficiency. It supports various applications including demand management, peak & valley arbitrage, self-consumption, power backup and micro-grid. With these cutting-edge technologies and full-scenario applications, the ST129CP-50HV Series will empower both your life and business.

In some places of the world, the power grid can be due to unstable supply or planned shutdowns via programs such as“load shedding” and can last an unknown amount of time. During this time, a standard grid-connected solar PV system will also shut down. How can we ensure that a solar PV system continues to work during these temporary, but often lengthy, power outages? This Solis seminar brings you solar PV + diesel generator hybrid system solutions and a discussion of related issues.

Grid transmission cables are usually aluminum core. Therefore, in the construction of PV plant projects in residential and commercial areas (especially household PV plants), many users will use aluminum core cables to directly interface with inverter output ports or circuit breakers ports. This can cause many safety problems. This Solis seminar will share with you the correct connection of copper and aluminum cables.

In PV systems, there can be errors caused by problems on the grid side. As an important operating function of a solar PV system and the grid, inverters are very sensitive to grid problems and will respond quickly. Among them, grid imbalance faults, although rare, can easily affect inverters, PV systems and sometimes even loads. In this Solis seminar, we will share information on "grid unbalanced" or G-PHASE errors that appear in PV systems and their solutions.

The working environment of a PV plant is relatively complex, and extreme environments such as high/low temperature, humidity, salt spray, heavy sand and other harsh environments, can test the reliability and environmental adaptability of the PV system. More and more PV plants are being built in water, desert, and in coastal areas.

As a result of the ongoing global climate crisis, extreme weather events have increased again this year. Heavy rainfall bringing with it more damaging flooding in many regions of the world with extreme flooding seen across Asia and Europe during July. These extreme conditions not only impact on our lives but can also have devastating effects on solar PV systems.

During the operation and maintenance of a solar PV plant, often power off and power on the inverter, which is normally related to the safety of equipment and the personal safety of O&M personnel but is there anything specific we should look out for during what is seemingly a very simple process? In this article, we will share some relevant tips for you.