Solis S6-EA1P4.6K-L + Pylontech US5000 storage solution for existing PV systems

Solis S6-EA1P4.6K-L | AC-coupled low-voltage battery inverter 1PH 4.6 kW

• Model name: SOL-S6-EA1P4.6K-L
• Weight: 24,5 kg
• Dimensions (H*W*D): 440*465*192 mm

AC power input (mains side)

• Input voltage range: 187-253V
• Max. input current: 21 A/20 A
• Maximum input power: 4,6kW
• Frequency range: 45-55 Hz / 55-65 Hz

AC output (mains side)

• Nominal output power: 4,6kW
• Maximum apparent output power: 4.6 kVA
• Nominal mains voltage: 220 V / 230 V
• Mains voltage range: 187-253 V
• Nominal mains frequency: 50 Hz / 60 Hz
• Nominal mains output current: 21 A / 20 A
• Max. output current: 21 A / 20 A
• Power factor: > 0,99 (0,8 results in a delay of 0,8)
• THD: <3%

Battery

• Battery type: Li-Ion
• Battery voltage range: 40-60 V
• Max charge/discharge current: 96A
• Communication: CAN

Protection

• Protection class: I
• Overvoltage category: DC II / AC III
• Battery reverse battery protection: Yes
• Battery over and under voltage protection: Yes
• Short-circuit protection: Yes
• Output overcurrent protection: Yes
• Temperature protection: Yes

Pylontech US5000 4.8kWh Li-Ion battery 48V

• Weight: 39,7 kg
• Dimensions: 442mm x 420mm x 161mm
• Battery type: Lithium iron phosphate (LiFePo4)
• Nominal voltage: 48V
• Nominal capacity: 100Ah / 4,8kWh
• Discharge voltage range: 45,5 … 53,2 V
• Charging voltage range: 52,5 … 53,5 V
• Recommended charging/discharging current: 80A
• Communication: RS485, CAN
• Temperature range during charging: +0… +50°C
• Temperature range during discharge: -10… 50°C
• Lifespan: over 15 years at 25°C
• Cycle life: > 6000 at 25°C
• BMS / Monitoring: integrated into every module
• Certification: CE / UN38.3

Battery inverter

Datasheet – Solis S6-EA1P4.6K-L
Manual – Solis S6-EA1P4.6K-L
Compatibility list – Solis S6-EA1P4.6K-L
Declaration of Conformity – Solis S6-EA1P4.6K-L
CE Declaration – Solis S6-EA1P4.6K-L

Battery storage

Datasheet – Pylontech US5000
User manual – Pylontech US5000
Declaration of Conformity – Pylontech US5000
Certificate of Conformity – Pylontech US5000

Can I combine this system with my existing solar power system?

Yes, that's precisely the purpose of this system. The Solis S6-EA1P4.6K-L is AC-coupled and works with virtually any grid-connected PV system – regardless of whether you have string inverters, microinverters, or an older system. The system is simply installed between your existing inverter and the house's electrical distribution panel. Your existing solar system remains completely untouched.

How much can I save through the storage system?

This depends on your electricity consumption and the size of your system. A typical example: For a household with an annual consumption of 4.000 kWh and a 5 kWp PV system, you can increase self-consumption from about 30% (without storage) to up to 70% (with storage). At an electricity price of 35 cents/kWh, this means additional savings of about 400-600 euros per year. The storage system thus pays for itself in about 6-9 years.

Is 4,8 kWh of storage capacity sufficient?

For a 2-3 person household with average consumption, the 4,8 kWh storage system is a good starting point. It bridges the typical evening and night hours when no solar power is being produced. The usable capacity of approximately 4,5 kWh corresponds, for example, to: refrigerator (24 hours), TV in the evening (3 hours), lighting (5 hours), laptop charging, and still some reserve power. If your needs increase, you can expand the storage system later with additional Pylontech modules.

What does AC-coupled mean and why is it important?

AC-coupled means that the battery inverter is connected on the AC side (after the PV inverter). The major advantage: you don't have to change anything on your existing solar system. The system functions completely independently of your current inverter. With DC-coupled systems (hybrid inverters), on the other hand, you would have to replace your entire PV inverter – significantly more complex and expensive.

Can I expand the storage later?

Yes, the Pylontech US5000 has a modular design. You can operate up to 8 modules in parallel, expanding the capacity to up to 38,4 kWh. Expansion is achieved by simply adding more battery modules – communication takes place via the shared BMS (Battery Management System).

Do I need a special electricity meter?

In most cases, you can continue using your existing bidirectional meter (feed-in meter). The included 3-phase meter is used for internal measurement and control of the system – it tells the inverter when to charge or discharge. Installation must be carried out by a qualified electrician.