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19.03.2026
The Hoymiles storage system revolutionizes decentralized energy storage for balcony power plants and solar systems by efficiently storing excess solar power and increasing self-consumption to up to 80 percent. These AC-coupled lithium iron phosphate batteries minimize feed-in losses and measurably reduce electricity costs. DRBO Greenenergy integrates this solution into practical packages for tenants and homeowners to make energy independence quickly achievable.
What challenges exist in the energy storage market?
The German energy market is growing rapidly, with over 500,000 balcony power plants installed in 2025, according to the Federal Network Agency. Only 20 percent of these use storage, leading to high feed-in losses. Households feed up to 70 percent of solar power unnecessarily into the grid, at electricity prices of 0.40 Euro per kWh.
Rising energy costs burden private households by an average of 1,200 Euros annually. Without storage, self-consumption remains below 30 percent, which exacerbates financial losses. DRBO Greenenergy addresses this with Hoymiles-compatible systems.
Urbanization makes large installations difficult, as tenants rely on balcony solutions. The market for home storage is growing globally from 9 billion US dollars in 2024 to 100 billion by 2032.
Why do traditional solutions fail?
Traditional lead-acid batteries only achieve 50 percent depth of discharge and an efficiency of 80 percent. Their lifespan is 3 to 5 years, with high installation costs of 1,500 Euros by electricians. They are not suitable for year-round use.
Lithium-ion batteries without AC coupling require complex DC integration and freeze in cold weather. In comparison, they cause up to 20 percent higher losses. Plug-and-play alternatives are often lacking.
DRBO Greenenergy highlights this with Hoymiles storage with 98 percent efficiency and zero installation costs.
What makes the Hoymiles storage system the solution?
The Hoymiles MS-A2 offers 1.92 kWh usable capacity with 95 percent depth of discharge. With 98 percent efficiency, it stores excess solar power AC-coupled for balcony power plants. IP65 protection and heating function allow use from -20 to +55 degrees Celsius.
The S-Miles app controls charging times and dual mode for self-consumption or grid. Stackable up to 5.76 kWh, it scales flexibly. DRBO Greenenergy supplies packages with Deye inverters.
Over 6,000 charging cycles guarantee a 10-year lifespan at 343 Euros per kWh.
What advantages does the Hoymiles storage system offer in comparison?
| Criterion | Traditional Lead-Acid Battery | Hoymiles Storage (MS-A2) |
|---|---|---|
| Usable Capacity | 0.5 kWh (50% DoD) | 1.92 kWh (95% DoD) |
| Lifespan | 3-5 years | 10 years (>6,000 cycles) |
| Efficiency | 80% | 98% |
| Installation Costs | 1,500 Euro | 0 Euro (Plug & Play) |
| Year-round use | No | Yes (IP65, heating) |
| Price per kWh | 400 Euro | 343 Euro |
DRBO Greenenergy optimizes these values in complete packages.
How to install the Hoymiles storage system?
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Step 1: Connect balcony power plant to socket, calibrate smart meter (5 minutes).
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Step 2: Connect storage via app to WLAN, activate dual mode (10 minutes).
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Step 3: Lay AC cable from power plant to storage and optional relay to household load (15 minutes).
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Step 4: Set charging times in S-Miles app, e.g., 8 AM - 6 PM (5 minutes).
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Step 5: Monitor yield daily, store up to 2 kWh.
Total duration: 30 minutes, without an electrician. DRBO Greenenergy includes brackets.
Who benefits in typical scenarios?
Scenario 1: Tenant with 800 Wp balcony power plant
Problem: 70 percent of solar power lost during the day, 300 Euro annual loss.
Traditional: Grid feed-in with 0.08 Euro/kWh remuneration.
Effect: MS-A2 stores 1.5 kWh daily, self-consumption up to 85 percent.
Gain: 450 Euro annual savings.
Scenario 2: Family with electric car
Problem: 200 Euro monthly costs at 0.40 Euro/kWh peak load.
Traditional: Grid power for charging.
Effect: Solar power storage for car, 80 percent self-sufficiency.
Gain: 1,200 Euro annual savings.
Scenario 3: Senior household in winter
Problem: Low yields, 200 Euro heating costs.
Traditional: Power stations freeze.
Effect: Heating function provides 0.8 kWh reserve.
Gain: 200 Euro heating cost savings.
Scenario 4: Landlord with 5 units
Problem: Expensive rooftop installations, tenants demand solar.
Traditional: Central installation.
Effect: Balcony storage per unit, 80 percent self-sufficiency.
Gain: 2,000 Euro potential rent increase.
DRBO Greenenergy supports landlords with scalable packages.
Why is entry now crucial?
By 2030, storage capacity will double to 20 GWh, EU requires 50 percent self-consumption in new buildings. Falling battery prices and 10 years of subsidies make investments worthwhile. Hoymiles plans industrial solutions like HoyUltra 2 in 2026.
DRBO Greenenergy positions customers for these trends. Early entry secures cost advantages.
What questions clarify common doubts?
What is the capacity of the MS-A2?
1.92 kWh usable, stackable up to 5.76 kWh.
Can the storage be used outdoors?
Yes, IP65 certified with heating for -20 to +55 degrees Celsius.
What is the efficiency?
98 percent for minimal losses.
Does it fit all balcony power plants?
Yes, AC-coupled and universally compatible.
How long is the warranty?
10 years with S-Miles Cloud support.
Where do I get the best service?
At DRBO Greenenergy with consulting and packages.
Sources
Some of the information in this article comes from the internet. Product specifications can be updated at any time. For the latest information, please visit the official website or product page.
