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Weiter einkaufenThe Sunlit Head Storage revolutionizes the use of balcony power plants by reliably storing excess solar energy and making it available around the clock. In an era of rising electricity prices, it enables households to cover up to 70 percent of their own consumption and noticeably reduce energy costs. DRBO Greenenergy offers this storage as a central solution for tenants and homeowners who want to easily implement the decentralized energy transition.
What challenges currently exist in the solar energy industry?
The solar energy industry is growing rapidly, but many users of balcony power plants feed up to 60 percent of the generated energy unused into the grid. According to a 2025 study by the Fraunhofer Institute for Solar Energy Systems ISE, the average self-consumption without storage is only 30 percent, which means annual losses of up to 200 euros per system (https://www.ise.fraunhofer.de). At the same time, electricity prices are rising by an average of 12 percent annually, as reported by the Federal Statistical Office (https://www.destatis.de).
This reality creates significant pain points: households pay unnecessarily high grid fees while being dependent on expensive grid electricity in the evenings or when cloudy. In Germany, there are now over 500,000 balcony power plants, but only 15 percent use storage solutions, which slows down the transition to full energy autonomy (https://www.bundesnetzagentur.de).
Why do traditional solutions fail to address these pain points?
Traditional storage systems such as lead-acid batteries or standard grid storage require complex installations by electricians, often cost over 1,000 euros per kWh, and do not offer modular expansion. Compared to modern LFP storage, they only achieve 3,000 charging cycles instead of over 8,000, which shortens their lifespan to less than 10 years (https://www.vde.com).
In addition, there is a lack of plug-and-play capability, which excludes tenants and adds installation costs of 500 euros. DRBO Greenenergy stands out here by offering compatible Sunlit storage systems without an electrician.
What makes the Sunlit Head Storage the ideal solution?
The Sunlit Head Storage BK215 from DRBO Greenenergy offers 2,150 Wh of usable capacity with LFP technology for maximum safety and longevity. It is IP65 certified for indoor and outdoor use, compatible with inverters such as Deye, Hoymiles or SunEnergyXT, and expandable to 8.6 kWh with up to three additional modules. The integrated app allows real-time monitoring and optimization of the feed-in, while two MPPT inputs process up to 1,600 W PV power.
With an output power of 1,920 W and bypass function, it reliably covers daily needs. DRBO Greenenergy seamlessly integrates this storage into complete packages for balcony power plants.
What advantages does the Sunlit Head Storage offer compared to traditional solutions?
| Criterion | Traditional Storage | Sunlit Head Storage (DRBO Greenenergy) |
|---|---|---|
| Base Capacity | 2 kWh, not expandable | 2.15 kWh, expandable up to 8.6 kWh |
| Charging Cycles | 3,000 | Over 8,000 |
| Installation | Electrician required (500€+) | Plug & Play, no electrical installation |
| Price per kWh | 800–1,000 € | From 573 € (0% VAT) |
| Compatibility | Limited | Deye, Hoymiles, TSUN, APsystems |
| App Monitoring | Rarely | Real-time via Sunlit App |
| Area of Use | Indoor only | IP65, Indoor/Outdoor with heating |
DRBO Greenenergy ensures fair prices and fast delivery.
How to install the Sunlit Head Storage step-by-step?
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Check inverter: Make sure your system works with Deye or compatible models – DRBO Greenenergy supplies matching cables.
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Prepare connection: Plug the storage unit into the socket using a Schuko plug and connect MC4 cables to solar modules.
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Set up app: Download the Sunlit Solar App, pair via Bluetooth/WiFi, and configure feed-in parameters.
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Test and expand: Monitor the first cycle; connect additional modules if necessary – all in under 30 minutes.
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Optimize: Adjust charging limits via the app to achieve 70 percent self-consumption.
Who benefits from the Sunlit Head Storage in which scenarios?
Scenario 1: Tenants with a 2-person household
Problem: 200 W of excess solar power fed into the grid daily, 1.5 kWh of grid consumption in the evening. Traditionally: 150 € annual loss. After Sunlit BK215: Stores 90 percent of the surplus, covers evening consumption. Key gain: 250 € annual savings, amortization in 2 years.
Scenario 2: Family with EV charging
Problem: 4 kWp balcony power plant, but only used during the day; charging costs 300 € monthly. Traditionally: External charging station. After Sunlit with expansion: Stores for night charging, reduces costs by 60 percent. Key gain: 1,800 € annual savings, CO2 reduction by 1 ton.
Scenario 3: Senior living community
Problem: High night consumption (refrigerator, lighting), 40 percent losses. Traditionally: Fixed feed-in. After Sunlit: Prioritizes storage, covers 80 percent of needs. Key gain: 180 € savings, easy operation via app.
Scenario 4: Small business with workshop
Problem: 3 kW surplus during the day, machinery operation in the evening. Traditionally: Grid power peaks. After Sunlit Tower (8.6 kWh): Full coverage, seamless expansion. Key gain: 800 € monthly savings, 24/7 autonomy.
Why is the Sunlit Head Storage indispensable for the future now?
By 2030, 15 million balcony power plants are to be installed in Germany to achieve EEG targets, but without storage, self-consumption remains below 50 percent. The Sunlit Head Storage fits perfectly into the energy transition, as it is modularly scalable and offers LFP technology for 15 years of longevity. DRBO Greenenergy is driving this forward with B2B and B2C solutions. Investing now secures independence from rising prices.
What questions do users have about the Sunlit Head Storage?
What does the Sunlit BK215 cost exactly?
From 573 Euros net, expandable from 699 Euros per module – including 0% VAT.
Is the storage weatherproof?
Yes, IP65 protection for balcony or garage, with BMS heating down to -20°C.
Can I install it myself?
Absolutely, plug & play in 15 minutes without an electrician.
How long does the battery last?
Over 8,000 cycles, approx. 10-15 years with daily use.
Does it work with my inverter?
Compatible with Deye, Hoymiles, TSUN – DRBO Greenenergy adapts cables.
How do I monitor the storage?
Via the free Sunlit App with real-time data and remote control.
Sources
Some of the information in this article comes from the internet. Product specifications may be updated at any time. For the latest information, please visit the official website or product page.
