The Ultimate Guide to Balcony Power Storage System in 2024: Comparing the Best Energy Storage Solutions for Your Home from SunLit, Ecoflow, Anker, Zendure, EasySuntower, Green Solar Basis

In today's energy-conscious world, having a reliable and efficient balcony power storage system is key to maximizing the benefits of solar energy. Whether you're a homeowner looking to cut electricity costs or a renter seeking greater energy independence, choosing the right energy storage solution is crucial. In this guide, we compare six top-rated products, examining their features, capacities, and suitability for different households. From affordable entry-level systems to powerful, scalable solutions, we'll help you find the best balcony power storage system to fit your needs.

 

 

Introduction to Balcony Power Storage System

A balcony power storage system allows individuals to maximize the use of their solar energy by storing excess electricity generated during the day for later use. As interest in home energy independence rises, these compact and efficient systems have become popular for apartment dwellers and small households. When choosing a Balkonkraftwerkspeicher, several critical factors need to be considered:

1. Storage Capacity: The total amount of energy the system can store is essential to meet your consumption needs.
2. Power Input/Output: The ability of the system to accept solar energy input and provide power output during peak demand.
3. Modularity & Expandability: Some systems allow adding more battery modules for increased capacity.
4. Weather Resistance: Given the outdoor installation, protection against rain, dust, and extreme temperatures is important (IP rating).
5. Smart Energy Management: Systems with features like dynamic energy feeding and smart app monitoring enhance efficiency.
6. Price & Value: Price comparison and whether essential components like inverters are included influence the overall value.
7. Battery Lifespan: The number of charge cycles and maintenance requirements are important for long-term investment.

These factors should guide buyers in selecting the most suitable balcony power storage system for their specific energy needs and environmental conditions.

 

Ranking of Most Popular Balcony Power Storage System Products

1. SunLit Solar BK215 – €999

• Reason: Offering a great balance of price and value, the BK215 includes a free 800W micro inverter, which adds significant value to the purchase. The expandable storage and built-in heater for cold climates further enhance its usability. The IP65 rating ensures durability outdoors, making it ideal for a wide range of users.

2. EcoFlow PowerStream 2 kWh – €999

• Reason: The waterproof battery and smart app integration give this product a solid ranking. Its real-time monitoring and efficiency optimization through smart plugs make it suitable for users seeking a connected and intelligent system. The compact size and long lifespan of the battery (3000 cycles) offer good value for the price.

3. Anker Solarbank 2 E1600 Pro – €1099

• Reason: With expandable capacity up to 9600 Wh and four MPPT controllers, Anker's product is ideal for users wanting a scalable system. The 10-year warranty provides peace of mind, while its weatherproof design and smart energy management system make it a versatile choice for households focused on future-proofing their energy needs.

4. Zendure SolarFlow Hyper Balkonkraftwerk – €1199

• Reason: Though priced higher, Zendure's system provides up to 2400 W input, which is higher than most alternatives. It also offers ZenLink technology for smart synchronization, ensuring efficiency. However, it lacks a free micro-inverter, which slightly reduces its overall value for the price.

5. EasySuntower future2400 – €1199

• Reason: Known for its dynamic and smart energy feeding, the easySuntower stands out for its expandable storage up to 10 kWh. With up to 3700 W input capacity, it’s one of the most powerful in the lineup. However, its higher price point and modular nature may appeal more to those seeking long-term energy solutions rather than a straightforward setup.

6. Green Solar Basis 3rd Generation 2.24 kWh – €999

• Reason: Although competitively priced, the Green Solar Basis system is limited by its relatively lower input/output capacities (800W output) compared to competitors. However, it remains a solid option for users looking for a cost-effective and expandable solution with smart monitoring capabilities.

Quick Conclusion (with detailed analysis below):

SunLit Solar BK215 takes the top spot due to its balance of affordability, durability, and added features like the free inverter. Meanwhile, EcoFlow PowerStream offers an excellent smart monitoring system, while Anker and Zendure products cater more to those seeking scalable and higher-powered solutions. EasySuntower is ideal for users needing long-term modularity and smart energy features. Green Solar offers a solid budget-friendly choice for moderate energy needs.

    

Product	Price (€)	Storage Capacity	Power Input	Power Output	Expandability	Weather Resistance	Special Features
SunLit Solar BK215	999	2150 Wh	1600 W	1920 W	Up to 4 batteries	IP65	Free micro inverter, built-in heater
EcoFlow PowerStream	999	2000 Wh	800 W	600-800 W	Yes	IP54	Smart monitoring, waterproof
Anker Solarbank 2 E1600 Pro	1099	1600 Wh (expandable)	2400 W	800 W	Up to 9600 Wh	IP65	Smart energy management, 4 MPPT
Zendure SolarFlow	1199	2000 Wh (expandable)	2400 W	1200 W	Yes	IP54	ZenLink tech, higher input
EasySuntower Future	1199	2500 Wh (expandable)	3700 W	1600 W	Up to 10 kWh	IP65	Dynamic energy feeding, modular
Green Solar Basis	999	2240 Wh	1600 W	800 W	2 additional batteries	None	Wi-Fi app monitoring, cost-effective

  

No.1 - SunLit Solar BK215

The SunLit Solar BK215 is an impressive balcony power storage system that stands out due to its excellent balance of features, price, and value. With a storage capacity of 2150 Wh, it is designed for users who want to capture and store excess solar energy efficiently for later use, making it ideal for small households or apartment dwellers.

One of the key selling points of the SunLit Solar BK215 is the inclusion of a free Deye SUN-M80G4-EU-Q0 800W micro inverter, which is a significant value addition at its competitive price of €999. The unit also supports expandability, allowing up to four battery modules, providing users the flexibility to grow their energy storage capacity as needed.

In terms of weather resistance, the BK215 is IP65-rated, meaning it is well-protected from dust and water, making it highly durable for outdoor installations. Furthermore, it includes a built-in heating function, ensuring reliable performance in colder climates, with automatic activation between -20°C and 5°C. This feature is especially beneficial for users in regions with harsh winters.

The dynamic power output of 1920 W allows for efficient energy utilization, making it suitable for powering small to medium-sized household appliances. The integrated Wi-Fi and Bluetooth connectivity allows users to remotely monitor and control their energy usage through the SunLit Solar app, giving them enhanced oversight of their energy consumption.

Pros:

• Free micro inverter included: Adds significant value at no extra cost.
• Expandable storage: Supports up to four additional battery modules for increased capacity.
• IP65-rated: Durable and weatherproof, perfect for outdoor use.
• Built-in heater: Ensures reliable operation in cold climates, automatically activates when needed.
• Competitive price: At €999, it offers a lot of features compared to similarly priced systems.
• Smart monitoring: Wi-Fi and Bluetooth connectivity allow remote monitoring and control.

Cons:

• Limited base storage: 2150 Wh might not be sufficient for larger households unless expanded.
• Higher initial investment needed for full expandability: To take full advantage of the system’s capacity, additional battery modules will need to be purchased.
• Relatively heavy: Weighing around 32.5 kg, the unit might be more challenging to handle during installation.

The SunLit Solar BK215 is a highly versatile and affordable system that caters to users seeking efficiency, reliability, and flexibility in their solar energy storage solution.

 

No. 2 - EcoFlow PowerStream 2 kWh

The EcoFlow PowerStream 2 kWh is a compact and efficient Balkonkraftwerk storage system designed to capture and store solar energy for later use. It is a well-rounded solution for small to medium-sized households looking to maximize their solar energy savings and reduce reliance on the grid. With a storage capacity of 2000 Wh, it offers ample energy storage for most daily energy needs, particularly for small appliances and electronics.

One of the key advantages of the EcoFlow PowerStream is its IP54 waterproof rating, which ensures it is resistant to dust and water splashes, making it suitable for outdoor installation. This weather resistance feature allows users to safely install the system on balconies or in outdoor environments without concerns about damage from exposure to the elements.

The system includes smart energy management capabilities through the EcoFlow app, which provides real-time monitoring and control over energy usage. This feature is particularly useful for users who want to track energy production, consumption, and savings, giving them detailed insights into their solar energy performance.

Another strong point is the long battery lifespan, rated for 3000 charge cycles at 80% capacity, which ensures durability and longevity. The system’s power output ranges from 600W to 800W, depending on the configuration, making it suitable for moderate energy consumption needs. Additionally, the efficient power input of 800W allows for effective energy harvesting from solar panels.

However, while the price of €999 makes it competitive, it does not include a micro-inverter, which means users may need to make an additional investment to fully optimize their solar power system.

Pros:

• Waterproof design (IP54): Durable enough for outdoor use on balconies or in gardens.
• Smart monitoring and control: The EcoFlow app allows real-time monitoring and detailed insights into energy usage and savings.
• Long battery life: Rated for 3000 cycles, ensuring a long-lasting investment.
• Compact and lightweight: Easier to install and manage compared to larger systems.
• Efficient energy storage: Suitable for moderate energy needs, with flexible power output (600-800W).

Cons:

• No included micro-inverter: Users will need to purchase a micro-inverter separately, adding to the overall cost.
• Lower power output: With 600-800W output, it may not be sufficient for larger or high-power appliances.
• Limited expandability: While the 2 kWh capacity is good for small setups, it might not be enough for higher energy consumption households unless expanded.

The EcoFlow PowerStream 2 kWh offers an affordable and user-friendly solution for small-scale solar energy storage. Its smart management features, combined with durability and ease of installation, make it an excellent choice for those looking to maximize the benefits of their balcony solar setup without a high upfront investment.

 

No. 3 - Anker Solarbank 2 E1600 Pro

The Anker Solarbank 2 E1600 Pro is a robust and scalable Balkonkraftwerk storage solution designed for users looking for a flexible and future-proof solar energy system. With a base storage capacity of 1600 Wh, the system can be expanded up to 9600 Wh by adding additional battery modules, making it suitable for both small households and those with higher energy demands.

A key highlight of the Anker Solarbank 2 E1600 Pro is its smart energy management system, which uses four MPPT controllers for optimizing the solar energy harvesting process. The system ensures that maximum energy is captured and efficiently stored, even in varying weather conditions, making it a reliable choice for continuous energy usage.

The IP65 weatherproof rating makes it highly durable for outdoor installations, offering protection against dust and water, making it ideal for installation on balconies or in outdoor spaces. The ability to withstand harsh conditions without compromising performance is a crucial feature for users in areas prone to varying climates.

One of the standout features is its expandability. Starting with a base capacity of 1600 Wh, the system can be upgraded by adding more battery modules, providing up to 9600 Wh of storage. This scalability makes it perfect for users looking to expand their solar energy system over time as their energy consumption grows.

The Anker app adds further convenience, allowing users to monitor and control their energy system remotely. With Bluetooth and Wi-Fi connectivity, users can easily keep track of energy production and consumption, and adjust settings as needed to maximize efficiency.

Priced at €1099, the Anker Solarbank 2 E1600 Pro is positioned slightly higher than some competitors, but its advanced energy management, modular design, and long-term expandability make it a strong contender for users planning for the future.

Pros:

• Scalable storage: Expandable up to 9600 Wh, allowing users to grow their energy storage capacity over time.
• Smart energy management: Features four MPPT controllers, ensuring maximum energy capture and efficient storage.
• Weatherproof (IP65): Highly durable and able to withstand harsh outdoor environments, including dust and water exposure.
• Remote monitoring: The Anker app with Bluetooth and Wi-Fi connectivity enables easy control and monitoring of energy usage.
• Long lifespan: Designed for users looking for a future-proof, long-term energy storage solution.

Cons:

• Higher price: At €1099, it is slightly more expensive compared to other systems with similar base capacities.
• No included inverter: Requires a separate purchase of a micro-inverter, adding to the overall system cost.
• Base storage may be limited for large households: Although expandable, the initial 1600 Wh capacity may be insufficient for homes with higher energy demands unless expanded.

The Anker Solarbank 2 E1600 Pro is an excellent choice for users seeking a flexible, scalable, and future-proof solution. Its durability, smart energy management system, and expandability make it a standout option for those looking to optimize their solar energy usage both now and in the future. While the initial price is slightly higher, the long-term benefits and ability to expand make it a worthwhile investment for growing energy needs.

 

No. 4 - Zendure SolarFlow Hyper

The Zendure SolarFlow Hyper Balkonkraftwerk is a premium, high-capacity balcony power storage system designed for users who demand a powerful, scalable, and efficient solar energy storage solution. With a storage capacity of 2000 Wh, the system is ideal for households looking to maximize their energy savings, but it also offers expandability for users with higher energy needs.

What sets the Zendure SolarFlow Hyper apart is its high power input of up to 2400W and 1200W power output, making it one of the more powerful systems in the market. This makes it ideal for households with higher energy consumption, especially those using larger appliances or seeking to minimize grid reliance during peak times.

Zendure’s ZenLink technology ensures seamless integration of multiple units, synchronizing them to boost efficiency and optimize energy flow. This makes the system especially suited for users looking to expand their setup over time. Additionally, its IP54 rating makes it resistant to dust and water splashes, ensuring long-lasting outdoor durability. While it is weather-resistant, it's important to note that it's not entirely waterproof like some competitors, which may be a consideration depending on the installation environment.

Another standout feature is the smart energy management system, allowing users to monitor energy usage and system performance via the Zendure app. This enables real-time control, making it easy to optimize energy efficiency, track consumption, and reduce wastage.

However, the €1199 price point makes the Zendure SolarFlow Hyper one of the more expensive options. Unlike some alternatives, it does not include an inverter, which adds to the overall cost if a micro-inverter is needed. Despite the higher price, the high power input/output and scalability offer excellent value for users with larger energy requirements or those planning to expand their system over time.

Pros:

• High power capacity: With 2400W input and 1200W output, it handles larger energy needs efficiently.
• Scalable system: Expandable storage allows users to grow their energy storage as needed.
• ZenLink technology: Ensures efficient synchronization of multiple units for optimized energy flow.
• Smart energy management: The Zendure app allows real-time monitoring and control for maximum energy efficiency.
• Weather-resistant: IP54-rated for protection against dust and water splashes, suitable for outdoor installation.

Cons:

• Higher price: At €1199, it is priced above several competitors, which may be a factor for cost-conscious buyers.
• No included inverter: Requires a separate purchase of a micro-inverter, adding to the total cost.
• Weather resistance could be better: The IP54 rating is solid but not as high as IP65, meaning it may not be ideal for extreme weather conditions.

The Zendure SolarFlow Hyper Balkonkraftwerk is an excellent choice for users who need higher power capacity and are looking for a scalable, long-term energy storage solution. Although the price is on the higher side, the strong energy output, smart management features, and expandability make it a compelling option for households with larger energy requirements or those planning to increase their energy storage capacity over time.

 

No. 5 - EasySuntower future2400

The EasySuntower future2400 is a powerful, modular energy storage system designed for users looking to create a dynamic and highly efficient balcony solar setup. With a base storage capacity of 2500 Wh, it is one of the more robust systems in its category and offers expandability up to 10 kWh, making it ideal for those seeking long-term energy independence.

One of the standout features of the EasySuntower future2400 is its ability to handle high power input of up to 3700W, which allows it to efficiently collect and store solar energy, especially for users with multiple solar panels. The system supports up to eight solar panels, giving it a significant advantage in terms of energy harvesting capabilities. The 1600W output ensures sufficient energy supply for most household appliances, making it suitable for users with moderate to high energy needs.

What truly sets the future2400 apart is its dynamic energy management system. The system uses smart metering and an ultra controller to feed energy dynamically based on real-time consumption. This feature optimizes energy usage, ensuring that only the necessary amount of power is fed into the grid, significantly reducing energy waste. This smart system makes the future2400 highly efficient, and it is particularly attractive for users who want greater control over their energy output.

The future2400 is also highly durable, boasting an IP65 rating, meaning it is fully protected against dust and low-pressure water jets, making it suitable for outdoor installations. Furthermore, it comes with an integrated battery heating system, allowing it to function in temperatures as low as -25°C, which is ideal for colder climates.

Priced at €1199 for the base model with one battery and one controller, the EasySuntower is on the higher end of the price spectrum, but it delivers significant value in terms of power capacity, expandability, and smart energy management. The optional emergency power feature ensures that the system can provide electricity even during grid outages, offering users additional peace of mind.

Pros:

• High power input (3700W): Capable of handling multiple solar panels for maximum energy harvesting.
• Expandable storage: Modular design allows the system to be expanded up to 10 kWh, making it future-proof for growing energy needs.
• Dynamic energy feeding: Smart metering and ultra controller optimize energy output, reducing waste and maximizing efficiency.
• Durable and weather-resistant: IP65 rating and battery heating make it ideal for outdoor installation, even in extreme weather.
• Emergency power option: Ensures continued energy supply during outages, adding to its reliability.
• Modular design: Flexible and scalable, suitable for users seeking long-term energy solutions.

Cons:

• Higher price: At €1199, it is more expensive compared to other systems with similar base capacities, though the features justify the price.
• Initial setup may be complex: While expandable, the modular nature might require a more complex setup for users unfamiliar with solar energy systems.
• Additional components required for full functionality: While the base system is robust, users may need to purchase extra components (such as additional batteries) to fully optimize the system.

The EasySuntower future2400 is an excellent choice for users seeking a high-capacity, expandable energy storage system with smart energy management features. It is particularly suited for those with higher energy demands, those planning to expand their solar energy systems over time, and users in areas with harsh weather conditions. While the price is on the higher end, the system’s flexibility, efficiency, and durability make it a valuable long-term investment for achieving energy independence.

 

 

No. 6 - Green Solar Basis 3rd Generation 2.24 kWh

The Green Solar Basis 3rd Generation 2.24 kWh is a cost-effective, compact balcony power storage system designed to offer reliable energy storage for users with moderate energy consumption needs. With a storage capacity of 2240 Wh, this system is ideal for small to medium-sized households seeking an affordable and efficient way to store and utilize excess solar energy.

One of the most appealing aspects of the Green Solar Basis system is its competitive price point of €999, making it one of the most affordable options in its category. Despite its lower price, the system delivers a solid set of features, including expandability through two additional battery modules, allowing users to increase the storage capacity as needed.

The system supports 1600W input and 800W output, which is sufficient for powering small household appliances, electronics, and lights. While these power ratings are lower compared to some of the higher-end systems, they are still adequate for users with moderate energy needs.

The Green Solar Basis also includes a battery management system (BMS) that offers comprehensive protection features, such as over-voltage protection (OVP), over-current protection (OCP), short-circuit protection (SCP), and temperature protection (OTP). These features ensure safe and reliable operation of the system, which is essential for long-term performance.

Although it lacks some advanced features found in more premium systems, such as dynamic energy management or higher power outputs, the Green Solar Basis compensates with its Wi-Fi-enabled app that allows users to monitor energy storage and consumption remotely. This makes it a practical solution for users who want to keep track of their energy usage without investing in more expensive systems.

However, the weather resistance of the system is limited compared to its competitors, as it does not offer the same level of protection (such as an IP rating). This means the Green Solar Basis may not be as well-suited for harsher outdoor conditions unless adequately sheltered.

Pros:

• Affordable price: At €999, it is one of the most budget-friendly options on the market.
• Expandable storage: Can be expanded with two additional battery modules, providing flexibility for growing energy needs.
• Comprehensive battery management system (BMS): Includes protection features such as OVP, OCP, SCP, and OTP, ensuring safe operation.
• Wi-Fi-enabled monitoring: The system can be monitored remotely via an app, allowing users to track energy consumption and storage easily.
• Compact and lightweight: Easier to handle and install compared to larger systems, making it accessible for smaller households.

Cons:

• Lower power input/output: With a 1600W input and 800W output, it may not be suitable for users with higher energy demands or larger appliances.
• Limited weather resistance: Does not have an IP rating, which means it may require additional protection for outdoor installations in harsh climates.
• No included inverter: Users will need to purchase a micro-inverter separately, which adds to the overall cost.
• Limited advanced features: Lacks dynamic energy management or other smart features found in more premium systems.

The Green Solar Basis 3rd Generation 2.24 kWh is a practical and affordable solution for users with moderate energy needs who are looking for a cost-effective way to store solar energy. While it may lack some of the advanced features and higher power capacities of more expensive systems, it offers a reliable and expandable storage option at a very attractive price point. This system is especially suited for smaller households or those new to solar energy storage looking for a simple yet effective solution.

 

Final Conclusion and Recommendations

When selecting a balcony power storage system, it is important to consider your specific energy needs, home setup, and budget. Each of the systems reviewed offers unique advantages tailored to different customer groups, ranging from affordable options for beginners to high-performance systems for long-term energy independence. Here's a summary of the most suitable products for various customer profiles and home settings:

1. For Budget-Conscious Users:

If your priority is cost-effectiveness, the SunLit Solar BK215 and Green Solar Basis 3rd Generation stand out. Both systems are priced at €999, but they offer different features. The SunLit Solar BK215 is the best value option, providing a free micro-inverter, expandable storage, and weatherproof protection. This makes it ideal for users who want a reliable, future-proof system without additional costs. The Green Solar Basis, while offering less power and fewer features, is a solid entry-level choice for small households with moderate energy needs, and its Wi-Fi monitoring provides convenient oversight of energy usage.

2. For Users with Higher Energy Demands:

For customers needing a more powerful solution, the Zendure SolarFlow Hyper and Anker Solarbank 2 E1600 Pro are excellent options. The Zendure SolarFlow Hyper is best for those willing to invest in a high-performance system with expandable storage and higher power input/output. It's ideal for households using larger appliances or those seeking to minimize reliance on the grid. Similarly, the Anker Solarbank 2 E1600 Pro is perfect for users looking for a scalable, smart energy solution with long-term expandability up to 9600 Wh, making it suitable for larger homes or users planning to grow their solar setup over time.

3. For Users Seeking Long-Term Scalability:

For users planning for future expansion and long-term energy independence, the EasySuntower future2400 stands out. Its modular design, expandable storage up to 10 kWh, and dynamic energy management system make it ideal for users who want to gradually increase their solar energy storage capacity. The high input/output capabilities also make it suitable for homes with higher energy demands, while the option to add emergency power enhances its value as a reliable, long-term investment.

4. For Users Seeking Smart Energy Management:

If you prioritize smart energy monitoring and control, the EcoFlow PowerStream 2 kWh is a great choice. Its real-time monitoring through the EcoFlow app and efficient energy management make it ideal for users who want precise control over their solar system. Though not as powerful as some other options, it is perfect for small to medium households that value connectivity and ease of use.

  

Additional Thoughts

Ultimately, the best balcony power storage system for you depends on your energy needs, home size, and budget. For smaller households or those new to solar energy, systems like the SunLit Solar BK215 and Green Solar Basis offer excellent value and ease of use. For larger households or users looking to future-proof their energy system, higher-end options like the Zendure SolarFlow, Anker Solarbank 2, or EasySuntower future2400 provide powerful and expandable solutions with smart energy management.

Whether you're focused on affordability, scalability, or smart features, there is a Balkonkraftwerkspeicher system in this lineup that will help you reduce your energy costs and optimize your solar energy usage efficiently.