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CALCULATORS

Calculate
your
independence

Find the optimal solution
for your home, business
and equipment

Independence
from outages
Efficient
energy use
Solutions
for your tasks
CALCULATOR

Backup power
selection

Accurate calculation based on
the energy consumption model
of a house or apartment.

Calculate →
  • We account for all the equipment that must run during an outage
  • We include headroom for inrush currents of pumps, boilers and the refrigerator
  • We show how many hours the home will run on batteries without the grid
  • We immediately suggest a suitable ready-made system from the catalog
System calculation
1 Property2 Backup3 Result
01

Housing typeAn apartment uses less electricity than a house: a house has more area, its own pumps and equipment. The housing type defines the baseline consumption the calculation starts from.

50 м²400 м²

Additional equipmentLarge equipment not found in every home: pool, sauna, EV charging. These appliances strongly affect monthly consumption — tick yours.

₽ / kWh (rural tariff ≈ ×0.7)
02

Backup mode“Selected only” — the system powers just the essential appliances from the list below, and the charge lasts a long time. “Whole house” — everything runs as usual, but a much larger system is needed.

What must run during an outageAppliances you cannot do without when the power goes out. Note: the fewer you tick, the longer the home lasts on one charge. The refrigerator and boiler run cyclically — this is already included in the calculation.

1 h48 h
Calculate the system →
CALCULATOR

Equipment
autonomy

Find out how long your equipment will run on batteries.

CALCULATOR

Battery
selection

Choose the optimal battery type and capacity for your task.

CALCULATOR

ESS economics

Estimate the cost of ownership and savings opportunities.

SIMPLE PROCESS

Just 3 steps
to your solution

Minimum input —
maximum useful result

01

Enter parameters

Property type, consumption and key equipment.

02

Get the calculation

The system will suggest a suitable configuration.

03

Discuss with an engineer

We will refine the parameters and prepare an offer.

02 / GAPWERK

How we calculate

E = Pср × t / (DoD × η)

Calculation based on the energy consumption model

We calculate consumption by housing type, area, number of residents, stove, hot water and heating. Backup load uses duty factors: the refrigerator and boiler run cyclically, the kettle runs minutes a day. The inverter is sized for the full sum of simultaneously running appliances with 25% headroom for inrush currents. Usable energy is 90% depth of discharge × 92% inverter efficiency.

CONSULTATION

Discuss the result
with an engineer

Our specialists will help you choose a solution, consider your specifics and answer questions.

Get a consultation Equipment selection for your task
03 / GAPWERK

Questions about the calculation

How to choose system capacity?+

Focus on the power of your appliances and the duration of outages. The calculator gives a preliminary estimate, and an engineer will confirm inrush currents and the connection scheme.

Can the energy reserve be increased later?+

Modular solutions allow expansion within a compatible lineup. The number of modules and inverter compatibility are checked against the equipment passport.

Can solar panels be connected?+

Yes, with a compatible hybrid inverter. The configuration depends on the voltage and power of the solar array.

Where is the system installed?+

Installation conditions depend on the design and temperature range of the specific model. For a residential site, the installation spot is agreed with an engineer.

GAPWERK / PRIVACY

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