Battery Backup Price Calculator

Build your system

Pick the size. See the estimate.

No packages, no bundles you don't need. Choose an inverter, choose a battery line, stack as many batteries as you want — the estimate updates as you go. Everything is Growatt, and every figure includes the equipment, standard installation, protection equipment and IVA. This is a planning estimate to get you oriented, not a binding quotation or a final electrical design — those come from the load audit on site.

1 Inverter capacity

3 kWone leg 8 kWboth legs 12 kWboth legs

Start from what you want to keep running, not from the panel. The 3 kW system is the entry point: one 120 V leg, enough for lighting, internet, a fridge, a water pump and cameras. The 8 and 12 kW split-phase systems cover both legs, which is what full-house backup including A/C normally needs. Starting loads matter as much as running watts — a pool pump or a compressor draws several times its rated wattage for the first moment, which is why the load audit exists.

Your main breaker is a cross-check on that choice, not the sizing method: whatever you pick should stay within what your service can deliver. Roughly, amps × 120 V gives one leg and amps × 240 V the whole house, so a two-pole 30 A main is about 3.6 kW per leg, 7.2 kW total. Not sure what yours is rated? Send us a photo of the master breaker — here it's usually right under or beside the CFE meter at the service entrance, not inside the house.

2 How many inverters

3 Battery line

Compact Growatt AXE 5.0 kWh · 92% DoD · 5-yr warranty (10 optional). Tool-free stacking tower, no cabling between modules. Caps at 6 kW output however many you stack, so it suits the 3 and 6 kW systems only. Scales Growatt Hope 5.12 kWh · 98% DoD · 6,000+ cycles · 5-yr warranty. 5.12 kW per module and it keeps scaling, so it is the only line that can carry the 8 and 12 kW systems.

4 Battery modules

modules, stacked

Your planning estimate

Inverter
Batteries
Storage
Max continuous draw
Lasts at · essentials
Lasts at · with A/C
Lasts at · everything on

These hours are how long the batteries last at that draw — not at the inverter's full rating. They are shown as a range because real draw moves with ambient temperature, battery condition and exactly what is switched on. Whether the A/C is on the backup is a decision you make at install, and it is the whole difference between the two.

DC breaker & protection

Standard installationIncluded

Subtotal

IVA (16%)

Estimated total, IVA included

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Planning estimate, not a binding quotation · free site visit · final price and electrical design confirmed after the load audit

The price calculator needs JavaScript. Send us a WhatsApp with your town and what you'd like to keep running and we'll price it for you the same day — +52 984 452 8700.

This is a planning estimate, not a binding quotation or a final electrical design. Figures are in Mexican pesos and include the Growatt equipment, standard installation (mounting, wiring and handover), the DC breaker and protection equipment, and 16% IVA. Runtime is shown as a range from an assumed steady average draw and the battery's rated depth of discharge; your real numbers come from the load audit.

Not included: electrical panel upgrades or replacement, long cable runs, three-phase service, structural or civil work, and any permits or condominium/HOA approvals your building requires. Where solar is added, interconnection with CFE may need its own approval. We tell you about any of these on the site visit rather than in the invoice.

Free site visit

Find out what your house actually needs.

Send a WhatsApp with your town and roughly what you'd like to keep running. We'll tell you what it takes and what it costs — and if a smaller system is the right answer, we'll tell you that too.

WhatsApp +52 984 452 8700 Call us