EnerCollege

Today solar energy storage inverter undoubtedly has been a common choice for residential and industrial power supply, for now there are two ways to construct medium to large-scale applications: one is to use single high-power inverter; the other is to use several smaller inverters in parallel. Single high-power inverter might have disadvantage in volume, quality, installation and other aspects. In addition, the reliability of single high-power scheme is relatively poor, one error may make the whole system paralyzed. Therefore, the technology of parallel connection is worth being applied in wider field.

Usually, in a home or building installation, regular load appliances and EV charger together share the power limit from the grid; building load equipment is first priority, so the EV charger will need to limit its loading power dynamically according to variations of the building's load power in such cases. It ensures the load equipment operation meanwhile keeping the EV charged at maximum available power.

In the previous ATESS white paper, we have introduced the automatic power distribution function of the ATESS EV charger. There are usually household or office appliance in the installation site, and the installation is limited by the total power distribution capacity. Then what can we do to ensure normal use of the load and with the premise of not exceeding the total power? The key is that the EV charger needs to have dynamical adjusting function, to automatically tune the charging power according to the load capacity.

Energy storage system is playing an increasingly important role in the 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.