Choosing the right home battery storage capacity is essential for maximizing solar self-consumption, reducing electricity costs, and maintaining reliable backup power.
Before picking a battery energy storage system (BESS), clarify four foundational factors that define your storage demand.
Calculate via your utility bill:
Size for peak seasonal demand (winter heating can increase load 30–50%).
LiFePO4 batteries offer high usable capacity and long cycle life. Key considerations:
💡 Add a 10–20% safety buffer to offset seasonal shortages, degradation, and peak surges.
Most homeowners fall into one of three use cases:
Plan for the next 2–5 years:
💡 Enershare's modular design lets you start small and expand as energy demand grows.
Each use case requires a different capacity strategy. Match your goal to the right Enershare configuration.
Capture surplus solar power for evening use and reduce expensive grid peak tariffs.
Maintain essential loads during grid failures — refrigerators, lighting, routers, and critical appliances.
Store daytime solar for nighttime and low-sun periods with minimal grid dependence.
Use our interactive calculator based on the standard battery sizing equation.
Standard Formula:
Modular high-voltage battery storage designed for different residential and light commercial needs.
Small Apartment / Weekend Cottage
Configurations: 4.8 / 7.2 / 9.6 / 12 kWh
Standard Family Home
Configurations: 9.6 / 12.8 / 16 / 19.2 / 22.4 / 25.6 kWh
Large Villa / Commercial
Example: 2 × 25.6 kWh = 51.2 kWh total
Solve sizing pain points with modular capacity expansion.
Start small and expand when you add EV chargers, heat pumps, or solar PV. Reduce upfront risk of over-sizing.
Suitable for homes, villas, small commercial buildings, shops, offices, and off-grid properties.
Reduces DC current for given power, minimizing cable losses and optimizing system efficiency.
Long service life, stable chemistry, high safety, and excellent cycle performance for solar storage.
CE, UKCA, IEC62619, UN38.3 certified. 10-year warranty with long-term manufacturer support.
Enershare CORE batteries meet international standards for residential, commercial, and industrial applications.
Pick your kWh capacity at a glance based on your household profile.
Complete official specs for Energy-CORE and Power-CORE series.
| Parameter | 3 stacks 9.6kWh | 4 stacks 12.8kWh | 5 stacks 16kWh | 6 stacks 19.2kWh | 7 stacks 22.4kWh | 8 stacks 25.6kWh |
|---|---|---|---|---|---|---|
| Usable Energy | 9.6 kWh | 12.8 kWh | 16 kWh | 19.2 kWh | 22.4 kWh | 25.6 kWh |
| Max Output Current | 30 A | 30 A | 30 A | 30 A | 30 A | 30 A |
| Peak Output Current | 50 A (5s) | 50 A (5s) | 50 A (5s) | 50 A (5s) | 50 A (5s) | 50 A (5s) |
| Nominal Voltage | 192 V | 256 V | 320 V | 384 V | 448 V | 512 V |
| Operating Voltage | 162–219 V | 216–292 V | 270–365 V | 324–438 V | 378–511 V | 432–584 V |
| Scalability | Up to 6 towers parallel | |||||
| Protection Grade | IP65 | |||||
| Round-trip Efficiency | ≥96% | |||||
| Certifications | UKCA / IEC62619 / CEC / CE / UN38.3 | |||||
| Application Mode | On-grid / Grid backup / Off-grid | |||||
| Warranty | 10 Years | |||||
| Parameter | 2 stacks 4.8kWh | 3 stacks 7.2kWh | 4 stacks 9.6kWh | 5 stacks 12kWh |
|---|---|---|---|---|
| Usable Energy | 4.8 kWh | 7.2 kWh | 9.6 kWh | 12 kWh |
| Max Output Current | 25 A | 25 A | 25 A | 25 A |
| Peak Output Current | 50 A (5s) | 50 A (5s) | 50 A (5s) | 50 A (5s) |
| Nominal Voltage | 204.8 V | 307.2 V | 409.6 V | 512 V |
| Operating Voltage | 172.8–233.6 V | 259.2–350.4 V | 345.6–467.2 V | 432–584 V |
| Scalability | Up to 6 towers parallel | |||
| Protection Grade | IP65 | |||
| Round-trip Efficiency | ≥95% | |||
| Certifications | UKCA / IEC62619 / CEC / CE / UN38.3 | |||
| Application Mode | On-grid / Grid backup / Off-grid | |||
| Warranty | 10 Years | |||
A typical 3-bedroom European home may require approximately 16–25.6 kWh of battery capacity depending on electricity consumption, solar PV generation, backup requirements, and EV charging demand. For a more accurate result, calculate your daily electricity consumption and determine how much of that load you want your solar battery storage system to cover.
High-voltage battery systems can offer advantages for larger energy storage systems by reducing DC current at a given power level and potentially reducing cabling requirements. They are particularly relevant for commercial battery storage, high-capacity residential ESS, and C&I energy storage.
A stackable battery storage system allows capacity to be expanded as electricity demand grows. Instead of replacing a fixed-capacity battery, users can add additional modules or towers according to the supported system architecture.
LiFePO4, or lithium iron phosphate, is widely used in modern home battery storage and solar energy storage systems because of its long cycle life and stable chemistry. It offers excellent safety characteristics and high cycle performance.
Yes. Depending on the configuration and inverter/system architecture, modular high-voltage battery systems can be applied to small commercial buildings, offices, shops, and other C&I applications. For larger projects, Enershare also provides dedicated commercial and industrial battery energy storage systems (C&I BESS).
There is no universal "one-size-fits-all" kWh battery capacity. Your exact storage demand depends on daily consumption, solar PV generation, self-consumption goals, backup needs, EV charging, heat pump loads, future plans, and grid tariffs.
Enershare's Power-CORE and Energy-CORE high-voltage stackable battery ecosystem provides flexible configurations that grow with your energy requirements.
Share your monthly electricity bill data, home appliances, solar PV capacity, and energy goals. The Enershare team can help calculate the required battery capacity and recommend a suitable high-voltage energy storage configuration.
