Why choose ATESS integrated storage inverter



Energy storage system is playing an increasingly important role in global energy market for load leveling, renewable energy cooperation, compensation of power line loss, power compensation, power quality improvement, stand-alone operation and peak shaving. Distributed energy storage, as an important form of solar storage, shows a strong momentum of development in today’s market. Photovoltaic plus energy storage, with no doubt will be the mainstream of future energy.

With 7 years penetration in global energy market, ATESS inverters have been  installed in more than 33 countries around the globe. In the thriving storage market, the most developed hybrid storage inverter of ATESS, HPS series model, has emerged with its flexible configuration, versatile operation mode, stable and efficient outstanding performance since it came into the market in 2015.



Features of ATESS HPS

ATESS HPS series storage inverter is ranged from 5kw-150kw a single unit, which is recommended to be applied for household, industrial and commercial users with capacity under 300kW.

1) High voltage battery design

It makes the capacity of the energy storage system easily expandable, and allows the system to work with a smaller rate of charge/discharge, which is conducive to the health of battery and also saves cable cost. It can also reduce the number of paralleled battery strings for large capacity bank, so as to reduce the influence of string imbalance caused by too many parallel batteries and increase its life span.


2) Integrated on/off-grid solution  

HPS supports simultaneous connection of battery, load, power grid and solar energy. Compared with traditional controller inverter separate design, it can save cost and equipment installation space. Also it is more instrumental in centralized management and monitoring, and improves the overall efficiency of the system, as well as ensure the easiness of installation and maintenance, inbuild transfer switch realizes seamless switching from off grid to on-grid, and bypass switch can ensure uninterrupted supply for load when the equipment is in maintenance.


3) Programmable working mode  

In on-grid mode there are load first mode, battery first mode, economic mode and peak shaving mode for options, zero-export function could be enabled in either mode. In off grid mode, PV supplies priority to the load, and battery is supplementary. Moreover, it is also diesel generator compatible. Compared with traditional controller and inverter separated design, complex control logic and diversified application scenarios are easier to be realized by HPS.


4) Easily expandable design   

HPS can be paralleled up to two units to expand the system capacity up to 300kW, supporting maximum 1.5 times of PV capacity oversize. On one hand, it covers a wider range of capacity requirements, on the other hand, it solves the energy waste caused by inverter capacity redundancy under the circumstance of small load and large PV capacity. In addition, paralleled HPSes can handle PV arrays of different orientation individually, thus to improve the flexibility of PV array configuration and system power generation efficiency. Compared with traditional controller inverter separated design, wiring is much easier, plus the setting of master-slave mode, it really simplifies the control method and make it more convenient to use.


In conclusion, ATESS HPS is an ideal option for energy optimization solution with the least system investment, its robust and powerful design is user-friendly and can meet multifarious requirements.