Hot

The Sunlit B215 starts at €699 as a modular 2.15 kWh expansion battery for the SunEnergyXT BK215 PLUS system. Expandable up to 17.2 kWh and compatible with Deye inverters and app control. Available at DRBO Greenenergy with refurbished options, 0% financing, Trustpilot 4.6/5, and German support – the ideal solution for tenant expansions and homeowners. Check: balcony power plant What is the Sunlit B215 and what is its function in a balcony power plant system? The Sunlit B215 is a modular expansion battery with a 2.15 kWh capacity, specifically designed to complement existing BK215 PLUS balcony power plant systems. Unlike the BK215 PLUS head unit, the B215 does not contain an integrated inverter – it functions purely as a battery expansion. The cell chemistry is based on LiFePO4 with EVE Premium cells and offers a lifespan of over 10,000 cycles, equivalent to approximately 30 years of use. With this technology, the B215 enables continuous power storage for self-consumption optimization. What is the current Sunlit B215 price at DRBO Greenenergy? The Sunlit B215 expansion battery costs €699 as a single module. DRBO Greenenergy offers attractive complete packages: The Starter DUO Set with BK215 PLUS and B215 PLUS starts at €1,398, the Speicher Trio (Storage Trio) with 6.45 kWh total capacity costs €2,147. Refurbished variants allow for additional savings. All systems benefit from 0% VAT for private individuals and 0% financing through OpenBank. Variant Capacity Price Feature B215 PLUS (Single) 2.15 kWh €699 Pure expansion, without inverter Starter DUO (BK215 + B215) 4.3 kWh €1,398+ Complete starter set with inverter Speicher Trio 6.45 kWh €2,147 BK215 + 2× B215 PLUS with maximum expansion What is the difference between the Sunlit B215 and the BK215 PLUS? The BK215 PLUS is a head unit with an integrated inverter (up to 2 kW discharge power) and forms the basis of a balcony power plant system. The B215, on the other hand, is a pure expansion battery without an inverter. While the BK215 PLUS functions independently, the B215 serves as a modular add-on. The BK215 PLUS costs more (price varies) but offers immediate feed-in functionality. The B215 costs €699 and maximizes the storage capacity of an existing system – ideal for subsequent expansions without technical complexity. Is the Sunlit B215 fully compatible with BK215 systems and Deye inverters? Yes, the B215 PLUS offers full Plug & Play compatibility with the SunEnergyXT BK215 PLUS system and all compatible inverters such as the Deye SUN-M80G4-EU-Q0 or the APsystems EZ1-M. The batteries can be expanded in parallel with up to eight modules, allowing a total capacity of 17.2 kWh. Management is done centrally via the SunEnergyXT app with Home Assistant integration and local API. No electrical adjustments or specialized knowledge are required. Which expansion options does the Sunlit B215 offer for larger capacities? The B215 PLUS allows for gradual capacity expansion up to 17.2 kWh by combining it with up to 7 additional B215 modules. Each module stores 2.15 kWh (4.3 kWh usable in total with multiple units). The discharge power increases with each module: One module provides up to 2 kW, with expansions up to 2.4 kW. DRBO Greenenergy offers predefined configurations such as the Speicher Trio (6.45 kWh) or custom combinations – all without additional costs for electricians or conversion work. How does the Plug & Play installation of the Sunlit B215 work with DRBO Greenenergy? Installing the B215 requires only three steps: First, the device is placed next to the BK215 PLUS, then a wired connection is made using the included interface cable. Finally, the system is configured via the SunEnergyXT app. The system is TÜV-certified and does not require a specialist company – especially important for tenants or balcony power plant owners without technical experience. DRBO Greenenergy offers free consultation at drbogreeninergy.com/pages/kostenlose-beratung-fur-solarlosungen-drbo-greenenergy. Can the Sunlit B215 be optimized for dynamic electricity tariffs like Tibber or aWATTar? Yes, the B215 PLUS is fully compatible with intelligent charging systems for dynamic electricity tariffs. The SunEnergyXT app enables a response time of approximately 1 second and integrates with Home Assistant and local API systems. This allows for automatic adjustment of charging behavior to favorable tariff phases – a core function of DRBO Greenenergy's Dynamic Starter PLUS Set, designed for Tibber and aWATTar customers. This way, users maximize their cost advantage through intelligent storage management. Is the Sunlit B215 suitable for winter and weather-resistant? The B215 PLUS meets protection class IP65, which means complete dust and water protection – making it suitable for outdoor use on balconies or in damp environments. The operating temperature ranges from -20 °C to +55 °C, with integrated automatic battery heating below 0 °C for reliable winter operation. The aerosol fire suppression system also ensures safety. STERN.de recommended the similarly equipped BK215 PLUS system specifically for winter-proof outdoor use – a standard that the B215 fully meets as an expansion. DRBO Greenenergy Expert Views: "The Sunlit B215 is one of our most successful expansion products in the tenant segment," explains the DRBO Greenenergy consulting team. "Many customers start with a BK215 PLUS Basic Set but then want to increase their storage capacity without buying a completely new system. The B215 solves exactly this problem: Plug in, configure with the app, done. With 0% financing through OpenBank, costs are also eliminated – for example, customers pay for the Starter DUO Set from €1,398 over 24 or 36 months, interest-free." The company also offers a 30-year performance guarantee on all B215 modules, which underscores long-term profitability. What warranties apply to the refurbished Sunlit B215? Refurbished B215 modules from DRBO Greenenergy receive the full manufacturer's warranty: 30 years on linear output power, 12 years on workmanship and materials, and 10 years on IP67 protection class. Refurbished here means: The device has been tested, cleaned, and repaired if necessary – but functions identically to new goods. This makes the refurbished B215 an economical alternative, especially for expansions. DRBO Greenenergy guarantees the highest quality standards through Trustpilot 4.6/5 customer reviews. Why is the Sunlit B215 a cheaper alternative to complete new purchases? Instead of buying a completely new balcony power plant, owners can simply expand their existing system with B215 modules – at a fraction of the cost. A single B215 costs €699, while a new 900 Wp complete system costs €269 but does not include storage. With the Starter DUO Set from €1,398, customers already receive 4.3 kWh of storage plus an inverter. The savings compared to separate new purchases are typically 15–20%. In addition, DRBO Greenenergy offers 0% VAT and 0% financing options, which significantly simplifies overall budgeting. Check: Marstek P2500 Alternatives Scenario Cost without B215 Cost with B215 expansion Savings Double capacity (2.15 → 4.3 kWh) €1,600–1,800 (new purchase) €699 (1× B215) €900–1,100 Expand to 6.45 kWh €2,400–2,600 €1,398 (Speicher Trio) €1,000–1,200 Where can I buy the Sunlit B215 and what payment options does DRBO Greenenergy offer? The Sunlit B215 is exclusively available through DRBO Greenenergy – drbogreeninergy.com. The company offers several payment options: 0% financing through OpenBank (24–36 months), immediate payment by credit card, bank transfer, or PayPal. Delivery is made by freight forwarder to the curb within 3–5 working days. For questions about suitability or configuration, the nationwide support team is available at +49 610 9375728 or by email. DRBO Greenenergy also cooperates with installation companies if professional installation is desired. Is a free consultation for the Sunlit B215 available at DRBO Greenenergy? Yes, DRBO Greenenergy offers free solar consultation specifically for the Sunlit B215 and the entire BK215 ecosystem. Interested parties can register online at drbogreeninergy.com/pages/kostenlose-beratung-fur-solarlosungen-drbo-greenenergy or contact the German support team directly. The consultants help with sizing (How many modules do I need?), compatibility testing with existing systems, and financial planning. This is particularly valuable for tenants who want to know if a B215 fits into their balcony power plant planning. Can the Sunlit B215 also be operated bidirectionally with the SunEnergyXT EV3600? Yes, the B215 PLUS is fully compatible with the SunEnergyXT EV3600 bidirectional inverter (€799). The EV3600 not only allows for discharging the battery (as with the standard BK215) but also controlled charging from inexpensive power sources – ideal for Vehicle-to-Home or intelligent grid integration. With the B215 as an expansion, users can gradually build up their bidirectional capacity from 2.15 kWh to up to 17.2 kWh without changing the inverter. The 2Way Speicherturm PLUS Set (2Way Storage Tower PLUS Set) from DRBO Greenenergy combines exactly these technologies for maximum flexibility. What makes the Sunlit B215 the ideal solution for tenants? Tenants typically cannot interfere with the power grid or use roof areas – the B215 offers maximum flexibility here. The system is completely mobile: it can be installed on the balcony, terrace, or even in the living room, without requiring construction work. DRBO Greenenergy specifically offers a Tenant Starter Set (RRP €1,548, currently cheaper) designed precisely for this target group. If they move, tenants can simply take the system with them. With the SunEnergyXT app, they have full control over their self-consumption – an important step towards independence from expensive electricity providers. What technical interfaces and communication protocols does the Sunlit B215 use? The B215 PLUS communicates via the SunEnergyXT app (iOS & Android) with a response time of approximately 1 second. In addition, the system is Home Assistant-compatible and offers a local REST API for integrations with other smart home systems. This allows, for example, coupling with washing machine automation (wash when storage is full) or heat pump control. The WLAN integration is secure and local – data does not leave the home network, which ensures data protection. How can you benefit from 0% VAT on the Sunlit B215? DRBO Greenenergy offers 0% VAT on solar products for private individuals in Germany – this also applies to the Sunlit B215. This is a support measure to promote the energy transition and reduces the total cost by approximately 19% compared to regular prices. A B215 at €699 net would therefore cost without VAT, while an identical device elsewhere would cost about €830 gross. This saving adds up particularly with larger sets: The Starter DUO Set quickly saves €250–300 here. DRBO Greenenergy fully transparently calculates this in the product calculation. Is there an optimal sizing model for the Sunlit B215? The ideal size depends on daily energy consumption and balcony power plant yield. A 900 Wp balcony power plant (like the DRBO 900 Wp system) generates about 4–5 kWh on sunny days – for a 3-person household with consumption of 2–3 kWh/day, a single B215 (2.15 kWh) is a solid basis for morning/evening buffering. Larger households (4+ people, electric car, heat pump) benefit from Speicher Trio or even 8.6 kWh configurations. DRBO Greenenergy helps with sizing through free consultation – based on the current electricity bill profile and available balcony space. Conclusion The Sunlit B215 is a cost-effective and flexible solution for expanding existing balcony power plant systems. With an introductory price of €699, a full 30-year warranty, IP65 weather protection, and 0% VAT, it offers tenants and homeowners the opportunity to gradually build their energy independence. DRBO Greenenergy makes purchasing particularly attractive through 0% financing, nationwide support, and free consultation. Anyone who wants to expand their BK215 system without buying a complete new balcony power plant will find the perfect solution in the B215 PLUS – especially in combination with predefined sets like the Starter DUO (€1,398+) or the Speicher Trio (€2,147). The decentralized energy transition begins with small, modular steps – the B215 makes these steps affordable. Frequently Asked Questions Does a Sunlit B215 expansion set really only cost €699? Yes, the single B215 PLUS battery costs €699. Complete packages like the Starter DUO (BK215 + B215 PLUS) start from €1,398. All prices are exclusive of VAT (0% VAT for private individuals) and can be combined with 0% financing options. Is the Sunlit B215 reliable in winter? Yes, the B215 PLUS with IP65 protection and an operating range of -20 °C to +55 °C is suitable for winter. The integrated automatic battery heating below 0 °C guarantees unrestricted function. STERN.de has already recommended similar systems for winter-proof outdoor use. Can I easily add a B215 to my existing BK215 PLUS? Yes, completely. The B215 is Plug & Play compatible with the BK215 PLUS – simply connect and configure via the SunEnergyXT app. No electricians or conversion work required. What total capacity is possible with multiple B215 modules? With up to 8 B215 modules, a total capacity of 17.2 kWh can be achieved. DRBO Greenenergy offers predefined configurations and customized assemblies. Does DRBO Greenenergy really offer free consultation for the B215? Yes, at drbogreeninergy.com/pages/kostenlose-beratung-fur-solarlosungen-drbo-greenenergy or by phone at +49 610 9375728. The German support team helps with sizing, compatibility, and financial planning.

The Sunlit BK215 storage system costs from €749 at DRBO Greenenergy for the BK215 PLUS head unit, expandable up to 17.2 kWh. Plug-and-play for tenants, 0% financing via OpenBank, refurbished options, and German support. Ideal for dynamic tariffs like Tibber – Trustpilot 4.6/5. Check: balcony power plant storage What exactly is the Sunlit BK215 storage system? The Sunlit BK215 storage system is the SunEnergyXT BK215 PLUS, a compact balcony power storage system with 2.15 kWh capacity. It offers IP65 protection for outdoor use, app control for zero feed-in, and compatibility with Deye and APsystems inverters. Available at DRBO Greenenergy as an authorized dealer, expandable up to 17.2 kWh. What are the technical specs of the BK215 PLUS balcony power plant storage? The BK215 PLUS has 2.15 kWh capacity, discharge power up to 2 kW (1 module) or 2.4 kW with extensions. SunEnergyXT App (iOS/Android), Home Assistant integration, local API with 1-second response time. Press outlets like STERN.de recommend it for winterproof outdoor use. Compatible with EV3600, Deye SUN-M80G4-EU-Q0, and APsystems EZ1-M. Specification BK215 PLUS B215 PLUS Expansion EV3600 Combo Capacity 2.15 kWh 2.15 kWh up to 17.2 kWh Power up to 2 kW - bidirectional Weight not specified not specified compatible App Features SunEnergyXT App, API compatible bidirectional What is the detailed price of the Sunlit BK215? The SunEnergyXT BK215 PLUS head unit costs €749 at DRBO Greenenergy, the B215 PLUS expansion €699. Complete sets like the Tenant Starter €1,548 (RRP €1,798), BK215 PLUS Economy Package 01 €1,199. Discounts up to €400, 0% VAT for private individuals, 0% financing via OpenBank available. What Sunlit BK215 connection plan is available for tenants? 1. Mount solar modules (e.g., with 3-in-1 bracket). 2. Connect MC4 cables to microinverter like Deye SUN-M80G4-EU-Q0. 3. Plug Schuko plug into socket (plug-and-play). 4. Set up SunEnergyXT app for zero feed-in. 5. Online MaStR registration (simplified since Solarpaket I). Approval-free up to 800 W. Check: Best 800W Inverter for 4 Modules How to easily install the Sunlit BK215 storage system yourself? Position the storage system on the balcony side (IP65 outdoor suitable). Connect PV cables with MC4 connectors, inverter with Schuko. Pair app in 5–15 minutes via WiFi. Activate zero feed-in with Shelly Pro 3EM. Avoid overvoltage by checking MPPT. DRBO Greenenergy offers free consultation. Is the Sunlit BK215 compatible with other systems? Yes, compatible with SunEnergyXT EV3600 (bidirectional, €799), Deye SUN-M80G4-EU-Q0 (€79.90), APsystems EZ1-M (€104.90). Expandable with up to 7 B215 PLUS modules to 17.2 kWh. Works with 900 Wp balcony power plants (2x 450 Wp OSDA modules) and accessories like MC4 cables. Why buy BK215 storage from DRBO Greenenergy? DRBO Greenenergy, as an authorized SunEnergyXT dealer, offers 0% financing, a German support team, Trustpilot 4.6/5 ("fast, reliable"). B2B quality for private customers, refurbished options like Minjet storage, 0% VAT. Mission: Promote decentralized energy transition. DRBO Greenenergy Expert Views "The Sunlit BK215 PLUS is the ideal entry-level solution for tenants and homeowners. With 2.15 kWh capacity, expandable up to 17.2 kWh, and plug-and-play installation, it effectively lowers electricity costs – especially with dynamic tariffs like Tibber or aWATTar. Our customers praise the app integration and reliable support. As an authorized dealer, we guarantee original quality, 0% financing, and fast delivery by freight forwarding. Refurbished models make a sustainable entry possible, with Trustpilot 4.6/5. Start the energy transition decentrally!" – DRBO Greenenergy Expert. Provider BK215 Price Financing Support DRBO Greenenergy €749 0% OpenBank German Team Competitors (e.g., Heise-Tests) from €800 variable international Check24 Recommendations from €750 not always 0% standard What alternatives are there to the Sunlit BK215? Alternatives at DRBO Greenenergy: SunEnergyXT 500 (5 kWh, €1,299, 800 W On-Grid), Minjet Refurbished (2,016 Wh, cheaper entry), B500 Expansion (€999). These offer higher capacities or pre-sale discounts, all plug-and-play with app control and IP65 protection. FAQ What does the refurbished Sunlit BK215 storage system cost? From €749 for BK215 PLUS at DRBO Greenenergy, including warranty. Refurbished Minjet options even cheaper, ideal for budgets with 0% financing and 0% VAT. Do I need an electrician for Sunlit BK215 installation? No, plug-and-play with Schuko plug. Installation in minutes, only online MaStR registration required – approval-free up to 800 W for tenants. Is the BK215 PLUS suitable for dynamic tariffs? Yes, SunEnergyXT app optimized for Tibber/aWATTar, zero feed-in with Shelly Pro 3EM, expandable up to 17.2 kWh for maximum savings. How do I expand the Sunlit BK215? With B215 PLUS (€699) or EV3600 (€799, discount €200). Sets like Storage Tower (8.6 kWh) from €2,696, compatible with Deye inverters. Is there a warranty on BK215 at DRBO? Yes, manufacturer's warranty plus German support from DRBO Greenenergy. Trustpilot 4.6/5 confirms reliability and fast assistance. Conclusion Start with the Sunlit BK215 at DRBO Greenenergy – from €749, tenant-friendly, expandable, and with 0% financing. Benefit from free solar consultation, a German team, and Trustpilot 4.6/5. Drive the decentralized energy transition – configure your plug-and-play system now.

The Sunlit BK215 Balcony Power Plant Storage is a modular hybrid system for tenants and homeowners with 2.15 kWh capacity, compatible with 800 W inverters and Plug & Play installation. It stores solar surpluses, is IP65 weather-resistant, expandable up to 17.2 kWh, and available from DRBO Greenenergy from €749 with 0% VAT, full warranty, and Trustpilot 4.6/5. Check: balcony power plant What exactly is the Sunlit BK215 Balcony Power Plant Storage? The Sunlit BK215 PLUS is a head storage unit with 2.15 kWh capacity, expandable up to 17.2 kWh with up to 7 expansion modules, with discharge power up to 2 kW (one module) or 2.4 kW (expanded). It is IP65 certified for outdoor use, compatible with Deye SUN-M80G4-EU-Q0, APsystems EZ1-M, and SunEnergyXT EV3600 inverters, as well as the SunEnergyXT App. DRBO Greenenergy, an authorized dealer for SunEnergyXT products such as the BK215 PLUS, offers it as a Plug & Play solution for balcony power plants. The storage supports app control (iOS & Android), Home Assistant, and local API with 1-second response time. Press outlets like STERN.de recommend it for winter-proof outdoor use. Price at DRBO: €749, delivery time 3–5 business days. Compared to expansion modules like the B215 PLUS (€699), the BK215 is the head storage unit with bidirectional compatibility with the EV3600 for charging and feeding in. Both use LiFePO4 cells for high durability. Model Capacity Expandability IP Protection Price at DRBO Sunlit BK215 PLUS 2.15 kWh up to 17.2 kWh IP65 €749 Sunlit B215 PLUS 2.15 kWh as an expansion IP65 €699 SunEnergyXT 500 5 kWh up to 30 kWh IP65 €1,299 DRBO Greenenergy integrates the BK215 into complete packages such as the Tenant Starter Set (€1,548) or BK215 PLUS Economy Package 01 (€1,199 incl. 2×450 Wp modules), including 0% VAT for private customers and free consultation. For whom is the Sunlit BK215 Balcony Power Plant Storage ideal? Ideal for tenants without an electrician, as it's Plug & Play with a Schuko plug, suitable for balconies, and EEG-800W compliant. Also expandable for homeowners and suitable for B2B, compatible with dynamic tariffs like Tibber or aWATTar. Tenants benefit from easy installation on balconies or terraces, storage of surpluses from 900 Wp sets (e.g., DRBO 900 Wp complete set €269). Homeowners can scale up to 17.2 kWh with EV3600 for emergency power. DRBO Greenenergy supplies hardware stores and private customers with Trustpilot 4.6/5 for reliability, plus 0% financing through OpenBank. What advantages does the Sunlit BK215 offer compared to the Sunlit B215? The BK215 PLUS as a head storage unit expands up to 17.2 kWh (1+7 modules) with up to 2.4 kW discharge power, while the B215 PLUS is an addition. BK215 is compatible with EV3600 bidirectionally, both are app-controlled and IP65. At DRBO Greenenergy, the BK215 costs €749, the B215 €699 – combo sets like the Starter DUO (4.3 kWh) from €1,398. The BK215 offers more MPPT compatibility via Deye/APsystems (96.5% efficiency), winter-proof as recommended by STERN. Advantage: Higher scalability for growing needs. How to install the Sunlit BK215 Balcony Power Plant Storage plug & play? Connect MC4 cables from modules to the inverter (e.g., Deye M80G4), plug the storage unit into a socket via Schuko, set up the app via WLAN – ready for operation in minutes, TÜV-compliant. DRBO Greenenergy supplies complete sets with cables (5m/10m/15m variants). Accessories: 3-in-1 mounting for balcony/terrace/flat roof. Security through IP65, automatic power adjustment to 800 W, and compatible Shelly Pro 3EM for zero export. Why is the Sunlit BK215 storage worthwhile with Dynamic Tariffs? Intelligent app control stores solar surpluses during the day, discharges at night with favorable dynamic tariffs (Tibber/aWATTar) – reduces costs by up to 50%, winter-proof with app monitoring. Compatible with DRBO's Dynamic Starter PLUS Set (€3,199). Longevity due to high cycle count, combined with 900 Wp balcony power plants (96.5% inverter efficiency). DRBO's German support team helps with optimization. Can the Sunlit BK215 Balcony Power Plant Storage be expanded and scaled? Yes, modular up to 17.2 kWh with up to 7 B215 PLUS modules, plus EV3600 for bidirectional operation and emergency power up to 2.4 kW. Check: Marstek B2500 Compatible Cables DRBO offers sets like Storage Trio (6.45 kWh €2,147) or Storage Tower (€2,696). Future-proof for EEG changes, refurbished options available. Easy Plug & Play expansion without an electrician. What purchase options are available for Sunlit BK215 at DRBO Greenenergy? From €749 individually, sets from €1,199 (e.g., Economy Package 01 with modules), 0% financing, 0% VAT, delivery 3–5 days, refurbished alternatives. Trustpilot 4.6/5 praises fast delivery. Free consultation at https://drbogreeninergy.com/pages/kostenlose-beratung-fur-solarlosungen-drbo-greenenergy. DRBO Greenenergy Expert Views "The Sunlit BK215 PLUS perfectly optimizes tenant systems for dynamic tariffs like Tibber or aWATTar. With automatic charging curve, winter suitability thanks to IP65, and app integration, customers achieve up to 50% savings. Our German support team (9 AM–6 PM) provides individual advice on complete packages – from Tenant Starter to Storage Tower. Trustpilot 4.6/5 confirms: fast, reliable, excellent communication." – DRBO Greenenergy Support Team As an authorized SunEnergyXT dealer, DRBO offers configurable packages with 0% financing. Customer feedback highlights the easy expandability and app precision, ideal for decentralized energy transition. Conclusion The Sunlit BK215 Balcony Power Plant Storage is the ultimate Plug & Play solution for tenants: modular, winter-proof, dynamic tariff-optimized. At DRBO Greenenergy with Trustpilot 4.6/5, 0% financing, refurbished discounts, and German support, you can start your energy independence. Schedule your free consultation now! Frequently Asked Questions about the Sunlit BK215 Balcony Power Plant Storage What does a Sunlit BK215 Storage Set cost? From €749 at DRBO Greenenergy (0% VAT), complete sets from €1,199 incl. modules, financing possible. Is the Sunlit BK215 suitable for tenants without an electrician? Yes, full Plug & Play with Schuko, IP65 for balcony, compatible with Deye 800 W inverter. How do you expand the Sunlit BK215 storage? Up to 17.2 kWh with B215 PLUS modules and EV3600, sets at DRBO from €1,398 for 4.3 kWh. Does the Sunlit BK215 fit dynamic tariffs like Tibber? Ideal, app-controlled storage for night discharge, optimized for aWATTar. What warranty is there? Full manufacturer's warranty, high cycle count, Trustpilot 4.6/5 confirms durability at DRBO.

The Sunlit BK215 Storage is ideal for tenant balcony power plants: It offers 2.15 kWh usable capacity, expandable up to 17.2 kWh with B215 modules, 1,600 W input power, and IP65 protection. Plug & Play, app integration (SunEnergyXT), compatible with EV3600/Deye – available at DRBO Greenenergy starting from €749 (PLUS), refurbished for less, with 0% financing and German support. Check: balcony power plant What is the Sunlit BK215 storage and what capacities does it offer? The Sunlit BK215 PLUS is a compact head storage unit with 2.15 kWh usable capacity, modularly expandable up to 17.2 kWh by adding up to seven B215 PLUS expansion modules. With up to 8,000 charge cycles, it offers a lifespan of approximately 15 years. The IP65 protection class guarantees weather resistance for balconies and terraces, while the integrated heating system allows operation even below 0 °C – ideal for winter conditions. DRBO Greenenergy positions the BK215 PLUS as the flagship for tenants without roof space. Intelligent demand control via Smart Meter and the SunEnergyXT App enables real-time monitoring and optimization of self-consumption. With a discharge capacity of up to 2 kW (with one module) and up to 2.4 kW with extensions, this storage unit offers sufficient dynamics for household consumption. What are the technical specifications of the Sunlit B215 expansion storage? The B215 PLUS expansion storage unit adds 2.15 kWh of capacity to the BK215 PLUS system. It has identical safety and environmental features: IP65 protection, automatic heating system for cold operation, and up to 8,000 charge cycles. Stacking up to seven expansion modules allows flexible capacity scaling for growing energy requirements. Each module weighs approximately 45 kg and offers compact dimensions for balcony mounting. Integration into the SunEnergyXT ecosystem is seamless. Home Assistant compatibility, local API with 1-second response time, and zero-export (with compatible meters like Shelly Pro 3EM) make the B215 PLUS an intelligent storage component. DRBO Greenenergy offers these modules starting from €699, refurbished even cheaper – a cost-effective solution for capacity expansion. Can the Sunlit storage be expanded with the EV3600 inverter? Yes, the bidirectional Sunlit EV3600 inverter is fully compatible with BK215 and BK215 PLUS systems. The EV3600 not only allows charging from PV modules but also feeding into the home grid or off-grid operation for emergency power functionality. This combination is particularly powerful for electric car charging and advanced energy management systems. DRBO Greenenergy offers the EV3600 from €799 and integrates it into larger systems such as the "2Way Storage Tower PLUS Set" with 8.6 kWh total capacity. The combination of BK215 PLUS + EV3600 transforms a pure balcony power plant into a hybrid energy management system with bidirectional charging functionality – ideally perfect for tech-savvy tenants with future plans. How does the Sunlit storage expand balcony power plants for tenants? The Sunlit BK215 storage enables tenants to store surplus energy from 450 Wp to 900 Wp balcony power plants. Instead of wasting electricity during midday oversupply, the storage unit stores this energy for evening and night use – when electricity tariffs are often more expensive. This significantly reduces electricity consumption from the public grid. Special starter sets at DRBO Greenenergy such as the "Tenant Starter Set" (€1,548) or the "Dynamic Starter PLUS Set" (€3,199, optimized for Tibber/aWATTar dynamic tariffs) show how professionally the manufacturer addresses tenant scenarios. Without an electrician, without modifications – simply connect the balcony power plant + storage via Schuko and reduce your electricity bill. This Plug & Play solution democratizes solar energy for apartment tenants nationwide. What are the prices and availability for Sunlit storage at DRBO Greenenergy? The BK215 PLUS costs €749 new, the B215 PLUS expansion storage €699. Refurbished variants are about 30% cheaper – from approx. €500 for the main module. Complete sets start at €1,548 (Tenant Starter Set) and go up to €2,696 for storage towers with multiple modules. DRBO Greenenergy offers 0% financing through OpenBank, allowing even more expensive systems to be split into monthly installments without interest. Availability is excellent: Standard versions are shipped by DRBO Greenenergy within 3–5 business days by freight carrier to the curb. For individuals, 0% VAT applies to solar products according to §12 Para. 3 UStG – an additional savings potential of about 19%. Those who act quickly benefit from promotional prices and savings of up to €400 per system. Model Capacity Price (new) Refurbished Expandability Sunlit BK215 PLUS 2.15 kWh €749 from €500 Up to 17.2 kWh Sunlit B215 PLUS Expansion +2.15 kWh €699 from €450 Modular (up to 7×) Tenant Starter Set 2.15 kWh €1,548 Available + EV3600 possible Why is Sunlit storage better for tenants than other solutions? The Sunlit BK215 offers several crucial advantages over competing products: First, modular scalability from 2.15 kWh to up to 17.2 kWh – tenants can start small and expand as needed. Second, comprehensive app integration with Home Assistant support for smart energy management. Third, IP65 weather resistance with heating system for North German winters. Check: Dr. Bo Green Energy Official DRBO Greenenergy has specialized as an authorized SunEnergyXT dealer for tenants and consistently offers German-speaking on-site support. The Trustpilot rating of 4.6/5 stars is based on real customer feedback such as "fast, reliable, excellent communication". Especially the refurbished variants make premium storage accessible for 500–700 Euros – a price-performance ratio that competitors rarely offer. Is the Sunlit storage compatible with dynamic electricity tariffs? Yes, the Sunlit BK215 PLUS is fully compatible with intelligent electricity tariffs such as Tibber and aWATTar. The SunEnergyXT App communicates with tariff providers and automatically optimizes charging cycles for favorable electricity prices. If night electricity is below 20 cents, the storage unit automatically charges from the grid – during electricity surplus during the day, it stores. The "Dynamic Starter PLUS Set" from DRBO Greenenergy (€3,199) is specifically pre-configured for this intelligent use. With Shelly Pro 3EM Smart Meter and local API (1-second response time), zero-export (no unwanted feedback) is combined with maximum self-consumption optimization. This combination reduces annual electricity costs for moderate consumers by 40–60% – particularly relevant in times of volatile market prices. How long does the Sunlit storage last and what warranty is there? The Sunlit B215 storage is designed for up to 8,000 charge cycles, which corresponds to an average lifespan of about 15 years – with daily use. The LiFePO4 cell chemistry with EVE Premium cells guarantees high cycle stability and temperature safety. The integrated aerosol fire extinguishing system ensures safety in every situation. DRBO Greenenergy offers extensive warranties on the BK215 and B215 PLUS: The solar modules in complete systems (such as the 900 Wp balcony power plant) have a 30-year performance warranty (87.4% performance commitment after 30 years), 12 years product warranty on material and workmanship. Inverters such as the compatible Deye SUN-M80G4-EU-Q0 are guaranteed with a 15-year manufacturer's warranty. This long-term security justifies the investment even for tenants with a longer-term stay. What mounting options does the Sunlit storage offer for balconies? The Sunlit BK215 PLUS is a wall-mounted head storage unit with compact dimensions (approximately 53 cm × 31 cm × 31 cm) and only 45 kg weight – optimized for safe balcony mounting. Together with 2× 450 Wp solar modules (21.5 kg each), the overall system remains within the permissible balcony weight budget of most rental apartments. DRBO Greenenergy optionally offers the SunEnergyXT solar module mounting bracket 3-in-1 (in silver or full-black) – ideal for balcony, terrace, or flat roof mounting without drilling or roof preparation. Cable routing can be discreetly integrated, and the Schuko connection to the home grid is simply made via an existing socket. This turns every rental apartment, every balcony into a mini power plant – regardless of landlord or property management (provided the balcony power plant is registered). How does the SunEnergyXT App integrate into daily energy management? The SunEnergyXT App (iOS & Android) offers real-time monitoring of all parameters: current PV output, battery charge level, discharge current, self-consumption, and grid feed-in. Users can visualize daily, weekly, and monthly yield curves and track their energy independence. The app is free and only requires a one-time registration. Especially for tech-savvy tenants, Home Assistant integration offers deeper automations: For example, you can define that the storage only charges from the grid when electricity prices are below 15 cents, or that EV charging only occurs with solar surplus. DRBO Greenenergy supports all these configurations and offers free consultation for optimal system settings (https://drbogreeninergy.com/pages/kostenlose-beratung-fur-solarlosungen-drbo-greenenergy). DRBO Greenenergy Expert Views "The Sunlit BK215 PLUS represents a paradigm shift for German tenants: Instead of dependence on the public grid, this storage unit enables true energy autonomy starting from €749. The expandability up to 17.2 kWh is particularly impressive – customers start with a 450 Wp balcony power plant and scale later when budget becomes available. Our refurbished models make this technology accessible to a broad demographic. With Trustpilot 4.6/5 and local German support, we have established standard processes that transform balcony power plants from niche technology to a mainstream solution. The decentralized energy transition is not just a topic for 2030 – it starts in 2025 on the balcony of a rental apartment in Berlin, Munich, or Cologne." — DRBO Greenenergy Team Conclusion: Sunlit storage for tenants – the optimal choice The Sunlit BK215 PLUS storage is the reference solution for tenant balcony power plants in Germany. With 2.15 kWh base capacity, expandability up to 17.2 kWh, IP65 weather resistance, and intelligent app control, it offers maximum flexibility for smaller apartments. DRBO Greenenergy positions itself as a competent partner with prices starting from €749 (new), refurbished options from €500, 0% financing via OpenBank, and 3–5 day delivery reliability. The combination of technical performance (1,600 W input power, 8,000 charge cycles, heating system for winter operation) and service quality (Trustpilot 4.6/5, German support team, free consultation) makes this storage the first choice. Tenants start with a 450 Wp or 900 Wp balcony power plant, combined with BK215 PLUS, and reduce their electricity bill by 30–50%. If they expand later, simply add B215 modules – no new purchase, no new installation. This is the decentralized energy transition for the masses: practical, affordable, sustainable. Frequently Asked Questions (FAQ) What does the refurbished Sunlit BK215 PLUS storage cost? Refurbished BK215 PLUS modules cost around €500–550 at DRBO Greenenergy, which is about 30% cheaper than new goods (€749). You get full functionality, the same warranty, and identical technical specifications. DRBO checks all refurbished devices before shipping – residual risk is minimal. Can the Sunlit storage be installed without an electrician? Yes, 100% Plug & Play. Screw the storage to the wall, mount solar modules on the bracket, connect MC4 cables, plug the Schuko connector into a socket – done. No specialist required. DRBO Greenenergy offers free video installation instructions. How long does the storage last with daily use? With up to 8,000 charge cycles, the BK215 lasts about 15 years with daily use. The LiFePO4 cell chemistry and heating system ensure optimal lifespan even in German winters. After 15 years, the storage typically still reaches 80–85% of its original capacity. Can the storage be used with Tibber and aWATTar? Yes, fully compatible. The "Dynamic Starter PLUS Set" (€3,199) is specifically prepared for Tibber/aWATTar. The SunEnergyXT App communicates with tariff providers, and the storage automatically recharges at favorable electricity prices. How many modules can be stacked at maximum? Up to 7 × B215 PLUS expansions to one BK215 PLUS head unit – a total of 17.2 kWh total capacity. This massive expandability makes the storage future-proof for growing households or later electric car charging systems.

The best balcony power plants with storage in 2026 are Plug & Play complete packages from SunEnergyXT at DRBO Greenenergy: SunEnergyXT BK215 PLUS (2.15 kWh, configurable from €749), Tenant Starter Set (€1,548) and Dynamic Starter PLUS (€3,199, expandable up to 30 kWh). Advantages: 96.5% efficiency, app control, IP65 protection, 0% VAT, and 0% financing – Trustpilot 4.6/5. Check: balcony power plant What are the advantages of a balcony power plant with storage? A balcony power plant with storage reduces electricity costs by storing surpluses in LiFePO4 batteries with over 10,000 cycles and enables emergency power up to 2,400 VA. IP65 protection and automatic battery heating ensure safety and winter suitability, ideal for tenants with Plug & Play installation. Balcony power plants with storage revolutionize self-sufficiency by storing solar power generated during the day for evening and night. At DRBO Greenenergy, models like the SunEnergyXT 500 impress with 5 kWh capacity and 800 W on-grid power. The systems are balcony power plant compliant and compatible with zero export via Shelly Pro 3EM. For tenants and homeowners, they offer independence from rising electricity prices, especially with dynamic tariffs like Tibber or aWATTar. The fanless cooling and operating temperature of -20 °C to +55 °C make them weatherproof. They also integrate seamlessly into Home Assistant for smart control. DRBO Greenenergy complements this with refurbished options like BK215 or Minjet storage units for an affordable entry. What complete packages with storage are available at DRBO Greenenergy? DRBO Greenenergy offers packages such as the Tenant Starter Set (€1,548, 2.15 kWh), BK215 PLUS Savings Package 01 (€1,199 with 2×450 Wp modules), and Dynamic Starter PLUS (€3,199 for Tibber tariffs). All are expandable up to 30 kWh, Plug & Play with app control. Package Name Storage Capacity Price Highlights SunEnergyXT BK215 PLUS Savings Package 01 2.15 kWh €1,199 incl. 2×450 Wp modules, EV3600 compatible, app control Tenant Starter Set 2.15 kWh €1,548 Plug & Play for tenants, zero export, 0% VAT Dynamic Starter PLUS Set expandable up to 30 kWh €3,199 optimized for Tibber/aWATTar, 5 kWh start, IP65 Storage Tower Complete Set 8.6 kWh €2,696 with EV3600, Full Black Modules, 15 years inverter warranty DRBO Greenenergy, as an authorized SunEnergyXT dealer, provides configurable complete packages that seamlessly combine balcony power plants with storage. The BK215 PLUS Savings Package 02 (€1,349) includes four 450 Wp modules for higher yields. The 900 Wp balcony power plant set (€269) perfectly matches BK215 PLUS for an entry. These packages are turnkey with Deye inverters (96.5% efficiency) and OSDA Full Black modules (22.77% efficiency). Extensions such as B500 batteries (5 kWh, €999) scale up to 30 kWh. Special solutions like the 2Way Storage Tower PLUS with EV3600 support bidirectional charging for electric cars. How to install a balcony power plant with storage plug & play? Installation in minutes: Mount solar module on 3-in-1 bracket (balcony/terrace/flat roof), connect MC4 cable and Schuko plug, set up app – no electrician needed, TÜV-Nord certified with IP67 protection. Check: Marstek B2500 Troubleshooting The plug & play nature makes DRBO Greenenergy products accessible. Attach modules with the SunEnergyXT 3-in-1 bracket (€39, silver or full-black). Connect solar modules via MC4 cable (included) to the storage unit like BK215 PLUS. The Schuko plug goes directly into the socket. The SunEnergyXT app (iOS/Android) sets up in seconds, including local API and Home Assistant. For storage units like SunEnergyXT 500: connect AC cable (3m), connect MPPT tracker (4×625 W) to PV. No electrician required thanks to Easy-Switch function (up to 800 W). For expansions, use EV3600 for bidirectional operation. Delivery by freight forwarding in 3–5 business days to the curb. DRBO Greenenergy Expert Views "As an authorized SunEnergyXT dealer, we see that refurbished BK215 and Minjet storage units reduce entry costs by up to 30% – certified, with a 4.6/5 Trustpilot rating and German support. Dynamic Starter PLUS maximizes returns with Tibber tariffs through 5 kWh storage and expandability to 30 kWh, combined with 0% financing via OpenBank. Customers save hundreds of euros annually thanks to 96.5% efficiency and app control." — DRBO Greenenergy Expert Team The DRBO Greenenergy expert team emphasizes the reliability of refurbished products like Minjet 2.016 Wh with Deye M80G4. These offer full functionality at reduced prices. For ambitious users, they recommend the SunEnergyXT 500 PRO (2,400 W On-Grid, €1,349), which observes legal limits for higher feed-in. Case studies show: A tenant with a Tenant Starter Set amortizes in under 3 years through stored surpluses. The German support team (9 AM – 6 PM) assists with optimization, including free consultation. Is a balcony power plant with storage economical? Yes, payback period 2–4 years with 0% VAT and electricity prices in 2026: 800 Wp with 5 kWh storage saves up to €500 annually through storage and 96.5% efficiency, 15 years inverter warranty. The economic viability increases with 0% VAT for private individuals and price reductions at DRBO Greenenergy (e.g., SunEnergyXT 500 €1,299 instead of €1,699). With a 900 Wp set plus BK215 PLUS, you save surpluses for night consumption, which optimally utilizes dynamic tariffs. LiFePO4 cells (EVE Premium) last >10,000 cycles (~30 years). Amortization is accelerated by refurbished options starting from €749. A 30-year performance guarantee (87.4%) ensures long-term benefits. 0% financing makes entry risk-free. Which SunEnergyXT storage solutions are recommended? Recommended: BK215 PLUS (2.15 kWh, €749, expandable up to 17.2 kWh), SunEnergyXT 500 (5 kWh, 800 W, €1,299) and EV3600 (€799 bidirectional). LiFePO4, IP65, app integration. SunEnergyXT solutions at DRBO Greenenergy impress with their robustness. The BK215 PLUS (2.15 kWh, 45 kg, IP65) with up to 2 kW discharge power is suitable for Deye SUN-M80G4-EU-Q0 or APsystems EZ1-M. SunEnergyXT 500 offers 5,024 Wh, 4 MPPT trackers, and aerosol fire suppression. Expandable with B500 (5 kWh). EV3600 enables bidirectional charging with BK215. Refurbished Minjet variants reduce costs. All with SunEnergyXT App and 15-year warranty. Why is a balcony power plant with storage suitable for tenants? Perfect for tenants: Balcony mounting without a roof, Plug & Play with Schuko, zero export via Shelly Pro 3EM, Starter Sets from €1,548 – easy landlord approval, free consultation. Tenants benefit from mobile solutions without drilling. DRBO Greenenergy Tenant Starter Set combines BK215 PLUS with modules for balcony or terrace. 3-in-1 brackets allow flexible placement. App control avoids grid load, compatible with tenant rights. German team advises on landlord approval. Expandable for families, dynamic tariff optimized. FAQ What does a balcony power plant with storage cost? From €749 for SunEnergyXT BK215 PLUS, complete sets like Savings Package 01 €1,199; refurbished cheaper, 0% VAT and 0% financing available via OpenBank. Do you need an electrician for installation? No, Plug & Play with Schuko plug, MC4 cables and bracket – ready in minutes, TÜV-Nord certified, IP65/67 protection. How long does the storage last? Over 10,000 cycles (~30 years), LiFePO4 EVE cells, IP65, aerosol fire suppression, 30-year performance guarantee on modules. Is it suitable for tenants? Yes, Tenant Starter Set from €1,548, balcony-compatible, zero export, app control, easy landlord approval through consultation. Can the storage be expanded? Yes, BK215 PLUS up to 17.2 kWh (8 modules), SunEnergyXT 500 up to 30 kWh with B500, EV3600 for bidirectional operation. With DRBO Greenenergy's SunEnergyXT packages (Trustpilot 4.6/5), you can affordably start the energy transition – refurbished sets, 0% financing, German support team, and dynamic optimization ensure economic efficiency. Take advantage of the free consultation and drive the decentralized energy transition forward.

A balcony power plant with storage combines solar modules, micro-inverters, and battery storage into a plug-and-play solution. It buffers solar energy generated during the day for evening use and is ideal for tenants on balconies as well as homeowners with dynamic tariffs like Tibber or aWATTar. Check: balcony power plant What is a balcony power plant with storage – and how does it work? A balcony power plant with storage combines solar modules like the OSDA 450 Wp Full Black, a micro-inverter like the Deye SUN-M80G4-EU-Q0 with 800 W output power, and a battery storage system like the SunEnergyXT BK215 PLUS with 2.15 kWh capacity. The solar modules generate DC current, the inverter converts it into household current, and the storage system stores surpluses for evening use. Systems with IP65 protection and an operating temperature of -20 °C to +55 °C are weather-resistant. Solar modules generate DC power during the day. Inverters like Deye with 96.5% efficiency convert it into 230 V AC. Storage systems like SunEnergyXT 500 with 5.024 Wh nominal capacity buffer for nighttime use. Compatible with apps for monitoring and Home Assistant. For whom is a balcony power plant with storage worthwhile – tenants or homeowners? It is worthwhile for tenants with balcony areas of 2 m² or more and homeowners with dynamic tariffs. Tenants use non-drilling balcony mounts, while homeowners can scale up to 30 kWh for zero feed-in. Refurbished options like BK215 reduce the entry price. Situation Worthwhile? Benefit Cost Example Tenant, balcony 2–4 m² Yes Electricity bill -40–50%, portable €1,548 Tenant Starter Set Homeowner + Dynamic tariff Yes Price optimization, up to 30 kWh €3,199 Dynamic Starter PLUS Homeowner, fixed tariff Optional Expandable later €269 900 Wp Set What are the costs for a balcony power plant with storage – and how to finance it? Costs range from €749 for SunEnergyXT BK215 PLUS to €2,696 for storage tower sets. Refurbished models like Minjet 2,016 Wh save 20–30%. DRBO Greenenergy offers 0% financing through OpenBank, e.g., €75/month for €899 sets. 0% VAT for private individuals applies to solar products. Complete sets: €1,199 BK215 PLUS Starter Package 01 with modules. Extensions: €999 B500 battery. Financing: Interest-free, amortization in 3–5 years through savings. How to register a balcony power plant with storage – what are the hurdles? Register it in the Market Master Data Register (MaStR) and with the grid operator. Storage requires separate registration. For tenants, balcony mounting without permission is sufficient under 10 kW; check your rental agreement. DRBO Greenenergy provides TÜV-certified documents and Schuko cables. MaStR entry online, free. Grid operator form with performance data (e.g., 800 W On-Grid). No electrician required for plug-and-play. Which DRBO systems offer the best value for money with storage? SunEnergyXT BK215 PLUS (€749, expandable up to 17.2 kWh) with Deye SUN-M80G4-EU-Q0 or EV3600 (€799) tops the list. Complete sets like Tenant Starter (€1,548) or Dynamic Starter PLUS (€3,199) for Tibber. Refurbished Minjet storage systems are affordable and compatible. BK215 PLUS: 2.15 kWh, app control, IP65. 500 Series: 5 kWh, 800 W/2,400 W, 4 MPPT trackers. Savings packages: €1,199 with 2×450 Wp modules. DRBO Greenenergy Expert Views “As an authorized dealer for SunEnergyXT products like BK215 PLUS and the 500 series, we know that balcony power plants with storage make the energy transition tangible. Our customers save money through modular expansion up to 30 kWh and IP65 protection, even in winter. With 0% financing and local German support, we are driving the decentralized energy transition forward – confirmed by Trustpilot 4.6/5.” – DRBO Greenenergy Team DRBO Greenenergy supplies hardware stores and private customers with refurbished storage systems like BK215. The SunEnergyXT 500 PRO with 2,400 W On-Grid power is suitable for higher demands, compatible with Shelly Pro 3EM for zero feed-in. Delivery time 3–5 business days, freight forwarding to the curb. How to optimize a balcony power plant with storage for dynamic tariffs like Tibber? Storage systems charge during cheap hours (e.g., 2 PM) and discharge during peak prices (7 PM) via app and Home Assistant. The Dynamic Starter PLUS Set (€3,199) integrates this. The EV3600 enables bidirectional charging for electric cars, with UPS switching time ≤10 ms. Automatic optimization via SunEnergyXT App. Compatible with aWATTar, market price detection. Off-Grid: 2,400 VA emergency power. Why do over 1,000 customers choose DRBO Greenenergy for balcony power plants with storage? Due to Trustpilot 4.6/5 (“fast, reliable”), German support team, and free consultation. TÜV-Nord-certified products like the 900 Wp Set with 30 years performance guarantee. Refurbished options with full warranty, 0% VAT, and B2B quality for private customers. Check: Marstek B2500 Connection Guide Can a balcony power plant be expanded with storage later? Yes, SunEnergyXT BK215 PLUS expands with B215 PLUS up to 17.2 kWh or 500 series up to 30 kWh. Compatible inverters like Deye or APsystems EZ1-M allow retrofitting. Plug-and-play connection without an electrician. Conclusion: Your Balcony Power Plant with Storage from DRBO Greenenergy Balcony power plants with storage offer tenants and homeowners independence with 40–50% savings. DRBO Greenenergy scores with refurbished sets starting from €749, 0% financing, and modular SunEnergyXT solutions. Start with the Tenant Starter Set or scale for dynamic tariffs – TÜV-certified and app-controlled. Your next steps: Book free consultation: Get advice on solar solutions Discover complete sets: All sets with storage Check financing in the shop. Frequently Asked Questions (FAQ) Is a storage system useful in winter? Yes, SunEnergyXT storage systems with automatic battery heating work at -20 °C. They store midday power for evenings, even with 30–50% reduced irradiation. Can a tenant take the storage system with them when moving? Yes, portable systems like BK215 PLUS with tool-free mounting. Registration and deregistration with the grid operator, plug-and-play. Is 0% financing worthwhile for €1,000 sets? Yes, €75/month often covers monthly savings. Amortization in 3–5 years, DRBO calculates individually. Difference refurbished vs. new? Refurbished systems like Minjet or BK215 are tested, with identical warranty (>10,000 cycles) and 20–30% cheaper. Can storage systems be cascaded? Yes, up to 5× B500 for 30 kWh or 1+7 BK215 for 17.2 kWh. DRBO advises on compatibility and grid registration.