From ESS News
Chinese battery manufacturer Marstek has introduced the Venus B, a plug-in energy storage device that can be connected via a standard Schuko socket. The system is designed for use with small photovoltaic systems and for optimizing energy costs with dynamic electricity tariffs.
The storage unit has a usable capacity of 2 kWh and is equipped with an integrated inverter. The maximum charging power from the grid is 1.5 kW. According to the manufacturer, the device can output either 800 W or up to 1.5 kW of power.
The device plugs into a wall socket and can thus absorb excess solar power from a plug-in solar system on the same circuit. Alternatively, the battery can also be charged with cheaper electricity from dynamic tariffs and discharged again when prices are higher. As is often noted, a profit may depend on round-trip efficiency.
According to Marstek, the storage system can be installed without any modifications to the existing plug-in solar system and is compatible with various photovoltaic systems.
The Venus B uses lithium iron phosphate (LFP) cells, which are said to have a lifespan of 6,000 charge cycles and a specified residual capacity of 80 percent. The battery operates with a depth of discharge of 90 percent.
To continue reading, please visit our ESS News website.
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com.
By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.
Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.
You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.
Further information on data privacy can be found in our Data Protection Policy.