Solar storage Hoymiles MS-A2 Pre-order - First worldwide AC-coupled storage. The Hoymiles MS-A2 micro storage system is the next step in innovative solar storage for your balcony power plant. Maximise your solar energy usage with Hoymiles' high-quality solar storage for balcony power plants and optimise your existing balcony power plant solar system with the world's first AC-coupled storage solution. Installed in just 7 seconds, the Hoymiles solar storage unit is connected to the Schuko plug of your existing micro inverter. From there, you plug the Hoymiles MS-A2 solar storage system back into the same or any other socket using the plug & play cable supplied. Simply plug it in and store green electricity. The time-consuming interconnection between solar modules, storage system and inverter is a thing of the past. Store your surplus solar power and use it when needed to reduce your electricity costs and increase your independence. The Hoymiles MS-A2 solar storage system is easy to install and ideal for anyone who wants to use sustainable energy.