Solar battery calculator: what size Huawei SUN2000 inverter and LUNA2000 battery?

A solar battery calculator that answers in Huawei codes. This store lists Huawei's home hybrids in two shapes — 6 single-phase SUN2000-LB0 models and 5 three-phase SUN2000-MAP0 — and 12 LUNA2000 home batteries between 5 and 20.7 kWh. Tick what must stay on, set the hours, and the tool says which of them your figures point to.

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How a Huawei result is worked out

Two numbers come out of your list. The first is its hardest moment — every motor starting at once — and it settles the inverter: the tool looks for a SUN2000-LB0, Huawei's single-phase hybrid, rated at or above that moment. The second is the energy your hours add up to, and it settles storage, in kilowatt-hours: where the engine can pair a LUNA2000 with the inverter it found, it names the smallest one that covers the hours, or several of one model; where it cannot, the storage stays a kWh figure. Past 6 kW on a single phase there is no LB0 to name, so a bare kilowatt figure stands where the model code would be; Huawei continues with the three-phase SUN2000-MAP0 line, 5–12 kW.

The array is sized so that a day of sun returns what the list uses in a day, and it is written as a panel count — we list no Huawei panel, so no panel model appears — and you may drop the array and size storage alone. A SUN2000 or LUNA2000 named in the result links to its product page: the table there is the source of every rating quoted, and its price is for a unit collected from our store in Dubai or Riyadh. Read the output as arithmetic, not as a wiring plan: string layout, protection and the grid application stay with the installer who commissions the system.

The Huawei shelf the calculator reads

Single-phase hybrids: SUN2000-LB0 in 3, 3.68, 4, 4.6, 5 and 6 kW, priced AED 2,366 – AED 2,885. Every one of them tracks strings across 40–560 V and accepts 16 A on an MPPT input. Three-phase hybrids: SUN2000-MAP0, AED 4,213 – AED 5,309, for a building whose meter has three phases.

Home storage: the LUNA2000-S0, AED 3,228 – AED 8,777 for 5, 10 and 15 kWh, and the LUNA2000-S1, AED 3,228 – AED 12,112 for 5, 6.9, 10, 11.9, 13.8, 15, 16.9, 18.8 and 20.7 kWh. When a result names a LUNA2000 and the hours outrun its biggest unit, it repeats one model rather than mixing two.

What the same engine returns for kits published on this site. An apartment through a 4-hour evening cut: the list peaks at 4.9 kW, so the result names the SUN2000-5K-LB0 (AED 2,801) and sets storage at 5.1 kWh. A villa through a 4-hour evening cut: 11.7 kW at the peak is more than any SUN2000-LB0 gives, so the result shows 12 kW with no model, or the SUN2000-12K-MAP0 on a three-phase supply, and one 15 kWh LUNA2000-15-S0 battery for the hours. A shop through an 8-hour night without the grid: the list peaks at 5.6 kW, so the result names the SUN2000-6K-LB0 (AED 2,885) and sets storage at 10.2 kWh.

Huawei 3 kW Single-Phase Hybrid Solar Inverter SUN2000-3K-LB0
AED 2,366 — Max DC Voltage: 600 V, MPPT Voltage Range: 40-560 V, Max Input Current per MPPT: 16 A
Huawei 6 kW Single-Phase Hybrid Solar Inverter SUN2000-6K-LB0
AED 2,885 — Max DC Voltage: 600 V, MPPT Voltage Range: 40-560 V, Max Input Current per MPPT: 16 A
Huawei 12 kW Three-Phase Hybrid Solar Inverter SUN2000-12K-MAP0
AED 5,309 — Rated AC Power: 12000 W, Max DC Voltage: 1100 V, Operating Voltage Range: 160-1000 V
Huawei 5 kWh 450 V Lithium Solar Battery LUNA2000-5-S0
AED 3,228 — Usable Capacity: 5 kWh, Nominal Voltage (Single-Phase): 450 V, Operating Voltage (Single-Phase): 350-560 V
Huawei 20.7 kWh Lithium Solar Battery LUNA2000-21-S1
AED 12,112 — Usable Capacity: 20.7 kWh, Battery Modules: LUNA2000-5-E1 (5kWh) / LUNA2000-7-E1 (6.9kWh), Operating Voltage (Single-Phase): 350-560 V
Solar system for an apartment with evening backup power, on the Huawei SUN2000-5K-LB0
4.9 kW starting peak, 13.8 kWh a day, 6 panels
Solar system for a villa with evening backup power, with Huawei LUNA2000-15-S0 storage
11.7 kW starting peak, 49.5 kWh a day, 20 panels
Solar system for a shop with overnight backup power, on the Huawei SUN2000-6K-LB0
5.6 kW starting peak, 25.2 kWh a day, 11 panels

Huawei kits this calculator has already worked out

Sizing with Huawei units: the SUN2000, the LUNA2000, the panels

What size Huawei inverter do I need for my load?

The SUN2000 rated at or above the moment everything starts together. An apartment list peaks at 4.9 kW and lands on the SUN2000-5K-LB0, 5 kW; a shop list peaks at 5.6 kW and lands on the SUN2000-6K-LB0, 6 kW; a house list peaks at 8.1 kW, past the 6 kW top of the single-phase LB0 family, so the result is a 9 kW figure with no model.

What size LUNA2000 battery covers an evening cut, and a whole night?

The hours decide it, building by building. A house takes LUNA2000-7-S1 (6.9 kWh installed) for 4 hours and LUNA2000-17-S1 (16.9 kWh) for 8; an office takes LUNA2000-12-S1 (11.9 kWh installed) for 4 hours and LUNA2000-21-S1 (20.7 kWh) for 8; a villa takes LUNA2000-15-S0 (15 kWh installed) for 4 hours and LUNA2000-21-S1 (20.7 kWh) for 8. Enter your own hours above and the capacity follows them.

How many solar panels go on a Huawei SUN2000 hybrid?

As many as return a day's use in a day of sun. 13.8 kWh a day on the SUN2000-5K-LB0 comes to 6 panels of 550 W over about 16 m² of roof; 25.2 kWh a day on the SUN2000-6K-LB0 comes to 11 panels of 550 W over about 29 m² of roof. The count is given at that panel size: no Huawei panel is listed here.

SUN2000 and LUNA2000: size it, set two side by side, read the sheet

Huawei solar systems with battery, building by building
Sized for an evening cut, a whole night and a site with no utility.
Huawei comparisons: SUN2000 L1 vs M1, LUNA2000 S0 vs S1
Family against family, and Huawei against the inverter brands it is weighed with.
Huawei SUN2000 and LUNA2000 datasheets
One sheet per family: every rating in a table, and the PDF.