The Plug-In Battery is currently only available in The Netherlands and Belgium.
Please note that this article is aimed at business installers. If you are a consumer, read all about installing and connecting the Plug-In Battery here.
The HomeWizard Plug-In Battery is a home battery with a plug that allows consumers to store their solar power at home for use at a later time.
As an installer, you are familiar with the NEN standard, which states that you may only connect devices that feed back into the grid inside your customer's home with fixed cabling.
This is because of several reasons:
It is unknown whether appliances and electronics with a built-in plug have the necessary protections when there is a grid failure. The HomeWizard Plug-In Battery has these protections built in as standard and thus meets the standardization (EN 50549-1/2) that requires this.
It is unknown whether a higher (leakage) current can flow within an existing electrical circuit or earth fault than the group is fused to. The HomeWizard battery does not cause any delay in switching off the earth leakage circuit breaker fault. The Plug-In Battery monitors for overloads via the primary connection to ensure safety and curb higher currents than the fuse (patent pending).
It is unknown if adequate disconnection protection is present when the plug is disconnected to de-energize the plug pins so that there is no more current on them and it is safe to touch. The HomeWizard Plug-In Battery switches off immediately (<20ms) when the plug is disconnected from the mains. This complies with EN 50549-1/2 and IEC 62109-1:2010.
With the above safeguards, the HomeWizard Plug-In Battery is safe to connect with a plug. When consumers want to connect four home batteries, we advise them to contact an installer. We recommend an installer for consumers who wish to discharge more than 800 watts.