Zendure, a global provider of plug-in Home Energy Management Systems (HEMS), and Joybuy, the new e-commerce platform from JD.com, have announced a strategic partnership to expand access to clean, AI-powered home energy storage solutions for households in Germany. As part of the collaboration, Joybuy will offer a selected SolarFlow 2400 AC storage bundle to customers through its German platform, supported by same-day and next-day delivery options.
The partnership brings together two complementary strengths. Zendure contributes plug-in, retrofit-ready home battery technology, while Joybuy adds a retail platform and a self-operated logistics network built for speed. Joybuy is a brand-led full-category platform, with products from leading international, European and local brands, available in the UK, Germany, the Netherlands, France, Belgium and Luxembourg. Together, the companies aim to tackle two major barriers to retrofitting existing solar systems with battery storage installation complexity and long delivery times.
At the centre of the launch is the SolarFlow 2400 AC, Zendure’s AC-coupled retrofit system for homes with existing rooftop PV. It adds battery storage with no DC rewiring, lightweight installation, and is compatible with major inverter brands installed on European roofs, including SMA, Huawei, Fronius, Enphase, SolarEdge, and Sungrow. With 2,400W AC input and output and up to 90% round-trip efficiency, it captures midday solar surplus and releases it in the evening, when grid electricity is most expensive.
SolarFlow 2400 AC runs on Zendure’s HEMS 2.0 platform and the ZENKI™ AI energy agent, which optimises charging and discharging in real time against household consumption, solar production, and live electricity prices. Paired with ZenWave™, Zendure’s dynamic electricity tariff based on EPEX SPOT wholesale prices, the system automatically charges when power is cheapest and draws on the battery when grid electricity is most expensive, turning home storage into an active, everyday money-saver. Every system is protected by ZenGuard™, Zendure’s multi-layer battery safety architecture, and runs with 100% local control by default for full data privacy under GDPR.
On Joybuy, the SolarFlow 2400 AC is available in one bundle configuration. It includes two AB3000X batteries, providing around 6 kWh of expandable storage, while also including a Smart CT meter (3CT) for precise whole-home consumption monitoring and ZENKI™ AI optimisation.
Through Joybuy’s own logistics network, the SolarFlow 2400 AC bundle comes with the platform’s signature “Double 11” delivery service: Orders placed before 11:00 qualify for same-day delivery, while orders placed after 11:00 and before 23:00 can be delivered the next day. The service is initially available in selected cities across North Rhine-Westphalia, including Bochum, Dortmund, Duisburg, Düsseldorf, Essen, Köln, with further expansion planned. Every purchase is backed by 30-day free returns and 24/7 customer service.
“Many German households with rooftop solar still feed their surplus electricity into the grid at relatively low rates, only to buy electricity back at much higher prices in the evening, simply because adding storage has felt too complex and too slow,” says Bryan Liu, Founder and CEO at Zendure. “Our partnership with Joybuy removes both barriers at once. We provide a plug‑in home battery that is easy to set up, while Joybuy delivers it to the door the same day, so households can start making better use of their own solar power almost immediately.”
A spokesperson for Joybuy said: “At Joybuy, our mission is to provide European consumers with a more joyful, one-stop shopping experience. Zendure is the kind of technology partner we want to bring to our customers, with products that improve life through technology. Combined with our self‑operated logistics and reliable Double 11 delivery and service, we can give customers not just a standout product, but the confidence that it arrives fast and is backed by service they can trust.”
The SolarFlow 2400 AC bundle, including two AB3000X batteries and a complimentary Smart Meter 3CT, is now available on joybuy.de for €999.
Driven by the purpose to accelerate a sustainable future, Zendure is a global pioneer of plug-in HEMS. With R&D and operations centers spanning major tech hubs like Silicon Valley and the Greater Bay Area, alongside Japan and Germany, our vision is to become The Home Energy Hub of the AI Era. Zendure’s mission is to empower every household worldwide with the ultimate freedom of energy control. It delivers this through the SolarFlow ecosystem, combining modular storage, intelligent power management, and flexible solar input. Scaling seamlessly from plug-and-play and retrofit storage to whole-home energy management, SolarFlow maximizes self-consumption, reduces grid dependence, and ensures reliable backup.
Joybuy is JD.com’s new online retail business in Europe, offering high-quality brands at great prices, delivered from its own warehouses to the customer’s doorstep, through a speedy and reliable network. Joybuy is a brand-led platform, with products from leading international, European and local brands, available across technology, appliances, beauty, home, grocery and everyday essentials. Its unique “Double 11” delivery service means if shoppers order by 11 am, orders will arrive before 11 pm the same day, order before 11 pm and they arrive the next day, subject to eligibility. Joybuy places the customer at the heart of everything it does and offers 24/7 customer service.
The Joybuy slogan “Don’t just buy, Joybuy”, perfectly captures the mission to fulfil customers’ needs and provide a service that is easy and convenient, but also enjoyable and fun. Officially launched in Europe in March 2026, Joybuy gives customers a more joyful shopping experience in the UK, Germany, the Netherlands, France, Belgium and Luxembourg.
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