SOFARSOLAR Grid-tied Integrated Inverters Help Power Mountain Tunnel Lighting Project

PVTIME – With the rising energy costs for minerals such as oil and coal and the reduction of subsidies for photovoltaic grid-tied systems, the grid-tied system has received much attention and interest as there is a strong need for uninterrupted and emergency power supply in mountainous areas or base stations with no power grid. As the core equipment of the grid-tied system, SOFARSOLAR’s HYD series grid-tied integrated inverter has become the priority solution of many application scenarios.

The recently commissioned Longquan Dali Mountain Tunnel lighting project in Zhejiang Province is now generating electricity and lighting for tunnels with the assistance of SOFARSOLAR’s HYD 5K~20KTL-3PH energy storage integrated inverters, and the battery sections equipped with 80 units 12V 75AH lead-acid battery.

This project is owned by the local transportation department who chose SOFASOLAR as the suppiler of the system which consists of photovoltaic modules, grid-tied inverter, lead-acid battery, holder and load, etc. Photovoltaic modules convert solar energy into electricity in the light, powering the tunnel load through grid-tied integrated inverter and charging the battery at the same time; when there is no light, the battery preferentially supplies power to the tunnel load and then adds power to the grid, if the power grid fails, the emergency load is supplied by the battery to the integrated machine.

As power generation systems are not limited by the region, they are widely used and can be installed wherever there is sunlight, therefore, it is very suitable for remote areas without power grids such as islands, fishing boats, outdoor breeding bases, etc. They can also be used as emergency generating equipment for frequent power outage areas. As the core equipment of the whole system—the HYD20KTL grid-tied integrated inverter uses the core of the SOFARSOLAR’s industry-leading level storage inverter technology.

The HYD20KTL grid-tied integrated inverter has a milky white appearance, generously simple shape, round and full design, and friendly LCD interface display, providing a more convenient operation experience. It has an all-aluminum body, disposable die casting, round edges, and corners. After being carefully polished, it presents a different surface texture, an elegant and generous craft to the touch. The internal components are selected from well-known brands in the industry to ensure the quality and life of the products. The internal circuit is designed scientifically to reduce internal loss. Its decentralized design with heat source layout utilizes added heat conduction paste and other processes to improve its heat dissipation performance. The machine has IP65 protection level and the installed positions can be chosen freely.

The SOFARSOLAR storage integrated inverter is not only esthetically appealing but also constructed with reliable components. At the same time, it is equipped with many industries leading ‘dark technologies’ such as off-grid and grid-connected systems compatibility and can be switched flexibly, advanced battery management technology, bidirectional flow control of electrical energy, I/V curve scanning, and independent MPPT tracking. In addition, it has off-grid overload sound and light alarm reminders, remote software upgrades, and remote intelligent monitoring, etc. It can be combined with photovoltaic off-grid systems, off-grid energy storage systems, photovoltaic grid-connected energy storage systems, micro-grid energy storage systems, and other systems. It can be used in industrial and commercial intensive production areas. Photovoltaic self-use cannot spare access to the grid, self-use electricity is much more expensive than on-grid electricity, the peak electricity price is much more expensive than the wave level electricity and other application markets. At present, it has been widely used in China, Germany, Australia, Italy, Holland, and other countries.