德国采购需求：垂直轴风力涡轮机，垂直轴风力涡轮机

We're in the process of launching a renewable energy startup in Hamburg and are keen to source your vertical wind turbine system in all-black. Before moving forward with an order, we have a few questions. Can you confirm if the turbine, including its blades and structure, is available in black? Also, does it generate electricity at night with sufficient wind? Additionally, we've come across a higher capacity version of this model on your site. Is that one available for purchase as well? We're planning to integrate the turbine with a specific energy storage system and would appreciate any wiring diagrams or controller recommendations for this setup. Please provide details on pricing, lead times for delivery to Germany, and any technical documentation available for the complete system. Looking forward to hearing back from you!