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22:40 · grid down

Turnkey backup power

Lights on at home when the grid is down

We size the inverter and battery around the appliances you actually need to run. A hybrid inverter charges the battery from the grid now and from solar panels later; a LiFePO4 battery is a safe, long-lasting type for homes. Installed in one day and wired into your breaker panel to Ukrainian electrical code; you get a wiring diagram and a warranty. Solar panels can come later as a second stage.

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1-year workmanship warrantyInstalled in 1 day5.0 rating on Google

06:10 · Morning

The night passed unnoticed

The fridge, boiler, router and lights ran on the battery. The grid is still down, but at home everything runs as usual.

12:30 · Sun

The sun charges the battery

Panels power the house during the day and the surplus goes into the battery. Add panels whenever you like — a second stage on the same inverter.

19:20 · Evening

Evening: solar energy from the battery

The house runs on what the panels stored during the day, and the car charges on a schedule. By the next blackout the battery will be charged again — from the sun or the grid.

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During a blackout

What keeps running during an outage

We size the kit around the appliances you need, not around a headline kilowatt figure. Here is a typical set for an apartment. The calculator below shows whether a battery will last the hours you need, and an engineer works out the exact figure.

Fridge and freezer
Router, fibre modem, cameras
Lighting in every room
Gas boiler and circulation pump
Laptops, phones, TV
Sockets for small appliances

Kits

Three ready-made kits

The "from" price includes equipment, installation, connection to your breaker panel and setup. The exact figure comes after a site visit or from a photo of your breaker panel.

Apartment

from 100,000 ₴

3.6–5 kW5 kWhRuntime — try the calculator ↓

What's included

Hybrid inverter 3.6–5 kW
LiFePO4 battery 5.12 kWh
Automatic switchover to battery, dedicated line in the breaker panel
Installation, commissioning, charge setup
Monitoring in the app

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Solar-ready

House

from 149,000 ₴

8–10 kW10–15 kWhRuntime — try the calculator ↓

What's included

Hybrid inverter 8–10 kW, single- or three-phase to match your supply
LiFePO4 batteries 10.24–15.36 kWh
Backup for the boiler, circulation and well pumps, gate motor
Solar and generator inputs
Installation, grounding, diagram and completion certificate

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POS, internet, security

Office / shop

from 119,000 ₴

5–8 kW10 kWhRuntime — try the calculator ↓

What's included

Hybrid inverter 5–8 kW, with POS, internet and security prioritised
LiFePO4 battery 10.24 kWh
POS, router, lighting, security
Installation outside working hours
Contract and service

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We choose equipment to fit your budget and what is in stock. You can check the battery charge and how the system is running in an app on your phone. Solar panels can be added to any kit later without redoing the breaker panel.

Fox ESS inverters and batteries we install →Power and generator monitor with Telegram alerts →Generator fuel and run-hour monitoring →

Why SDS

Why people trust us with their backup power

We understand batteries, we don't just sell them

We can build and service LiFePO4 batteries, read the data from their management system (BMS), and know why a battery beeps and how to prevent it.

Experienced electricians, not "inverter installers"

We wire into your breaker panel to Ukrainian electrical code: separate breakers, earth-leakage protection (RCDs) where needed, crimped wire ends, labelled circuits. Any electrician can find their way around it, and we look after the system once it is installed.

Sized to your consumption

We do not sell "10 kW because it sounds good". We work out what must run and for how long, and pick a kit that handles it without overheating.

Warranty and service

1 year on our workmanship, the manufacturer warranty on the equipment, and we cover warranty repairs at our own cost. On request we update the inverter firmware, check that the battery cells charge evenly and keep an eye on the system remotely.

Process

How it works

01A call and a photo of your breaker panelWe clarify what must run and look at a photo of your breaker panel and the space for equipment. Often that is enough to give you a price.

02Engineer visitFrom 1,500 ₴ in Kyiv (from 2,000 ₴ outside the city) — credited toward the cost of work when you order the installation. Measurements, wiring check, agreeing where the battery and inverter go.

03Installed in 1 dayMounting, connection to the breaker panel, setting up charge modes and priorities. At the end we cut the grid supply and show you everything running on the battery.

04Diagram, warranty, appWe hand over the diagram, set up monitoring on your phone and explain how to use the system. After that, we provide ongoing service.

Reviews

What clients say

Real reviews from our Google profile · All reviews on Google →

★★★★★

Приємно здивована якісним сервісом, головне що відреагували швидко та зробили все оперативно. Чудово зроблена робота майстра. Тепер підсвітка по всьому домі. Чим я тепер кайфую, бо вийшло дуже стильно.

T B

★★★★★

Чудовий майстер! Роботу виконано якісно. Все зроблено швидко, результатом повністю задоволений. Рекомендую!

Andrey

★★★★★

Швидко, професійно. Окрема подяка за швидке реагування та професійну консультацію.

Євген Володимирович

Portfolio

Our backup power projects

Home backup power: Deye 6 kW inverter and a 16 kWh battery

Apartment backup power: Deye inverter with a battery

12 kW solar station on a terrace canopy with a hybrid inverter and battery

FAQ

How much does backup power for an apartment cost?

The "Apartment" kit with a 3.6–5 kW inverter and a 5 kWh battery starts at 100,000 ₴ including installation. The exact figure depends on brand, capacity and the state of your breaker panel. After a call and a photo of your breaker panel we quote right away.

How long does a 5 kWh battery last?

It depends on what is switched on. A fridge, router, LED lights and a laptop draw little power, so 5 kWh keeps them going for a long time. Heating appliances such as a kettle or water heater drain the battery fastest. The calculator above shows whether 5 kWh covers your appliances for the outage length you need.

Do I need solar panels?

No. The inverter and battery work fine without them: they charge from the grid when power is on. Solar panels can be added later to the same inverter without redoing the breaker panel — we leave an input for them.

Hybrid inverter or a regular UPS?

A 1–2 kW UPS will keep a router and lights going for a few hours. A hybrid inverter runs a whole apartment or house, lasts for years, can take solar panels later and charge the battery on a cheaper night tariff. For outages of 4+ hours we recommend the hybrid.

Will old wiring cope?

The inverter goes on a dedicated line with its own breaker and only the circuits you need (fridge, lights, router, boiler) move to backup. If the breaker panel or wiring is in poor shape, we tell you honestly and suggest what to fix. That is our core work as electricians.

What is the warranty?

1 year on installation, manufacturer warranty on the inverter and battery (usually 3–5 years; LiFePO4 is rated for up to 6,000 cycles). We cover warranty repairs at our own cost.

Can I connect a generator?

Yes. Hybrid inverters have a generator input: the generator charges the battery and powers the house during long outages.

Do you work with apartment building associations (OSBB) and leased spaces?

Yes. We provide a wiring diagram and a completion certificate for the association; in commercial premises we install outside working hours and sign a contract with warranty obligations.

Request

Let us size your kit today

One call and a photo of your breaker panel, and you know the price. An engineer visit costs from 1,500 ₴ in Kyiv and from 2,000 ₴ outside the city; it is credited toward the job if you order the installation.

+38 (093) 989-33-93

Solar power as a second stage →

Power and generator monitor with Telegram alerts →

Fox ESS inverters and batteries we install →